
CD4543BM PMIC - Display Drivers by Texas Instruments
CD4543BM is a PMIC - Display Drivers from Texas Instruments in 16-SOIC packaging. It is commonly reviewed for IC BCD-7SEG LTCH/DEC/DVR 16-SOIC. This page lists current TrustCompo stock, tier pricing, package data, datasheet access, compliance attributes, Hong Kong warehouse shipping options, payment confirmation, and RFQ options for buyers verifying this exact ordering code.
Pictures are for reference only. Please contact us for the latest pictures.

- 365-Day GuaranteeAfter-sales support helps buyers handle quality questions with a clearer return and review window.
- Ships within 24-48 HoursAvailable items can move quickly once the quote, quantity, and delivery details are confirmed.
- 100% Anti-Counterfeit TestedParts are checked through authenticity-focused handling and inspection before shipment.
Key specifications
- Part Number
CD4543BM
- Internal code
TCE000044879
- Package
16-SOIC
- Manufacturer
- Texas Instruments
Key specifications
- Series
-
- Min Quantity
1
- Category
- Integrated Circuits (ICs)
- Sub Category
- PMIC - Display Drivers
- Description
IC BCD-7SEG LTCH/DEC/DVR 16-SOIC
- key Attributes
-
Trust signals
Quality and trust signals
Review TrustCompo quality credentials, traceability support, anti-counterfeit handling, and inspection controls before sending an RFQ.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
RFQ checklist
Order process
Confirm the core buying details for CD4543BM before RFQ, PO release, and shipment planning.
- 1
Confirm MPN
Use the exact part number, manufacturer, package, and approval constraints in the RFQ.
- 2
Check stock and price
Verify live availability, MOQ, lead time, final unit price, and tax terms before PO release.
- 3
Align documents
Confirm datasheet, CoC, traceability, lifecycle notes, and inspection scope when required.
- 4
Arrange shipment
Release the PO and align DHL, FedEx, UPS, or buyer forwarder shipment from Hong Kong.
Before PO release
Part confirmation
- Exact MPN confirmed: CD4543BM
- Package to verify: 16-SOIC
Commercial confirmation
- Live stock and lead time confirmed by RFQ
- Final price and tax terms confirmed before PO release
Fulfillment & documents
- Ship-from location: Hong Kong warehouse
- Shipping method: DHL, FedEx, UPS, or buyer forwarder account
Product overview
Product overview
Review the sourcing context for CD4543BM from Texas Instruments, including product identity, application fit, package notes, and purchasing considerations.
The CD4541BC Programmable Timer is designed with a 16-stage binary counter, an integrated oscillator for use with an external capacitor and two resistors, output control logic, and a special power-on reset circuit.
The special fea tures of the power-on reset circuit are first, no additional static power consumption and second, the part functions across the full voltage range (3V–15V) whether power-on reset is enabled or disabled.Timing and the counter are initialized by turning on power, if the power-on reset is enabled. When the power is already on, an external reset pulse will also initialize the timing and counter. After either reset is accomplished, the oscillator frequency is determined by the external RC net work.
The 16-stage counter divides the oscillator frequency by any of 4 digitally controlled division ratios.
Features
• Available division ratios 28, 210, 213, or 216
• Increments on positive edge clock transitions
• Built-in low power RC oscillator (±2% accuracy over temperature range and ±10% supply and ±3% over pro cessing @ < 10 kHz)
• Oscillator frequency range ≈ DC to 100 kHz
• Oscillator may be bypassed if external clock is available (apply external clock to pin 3)
• Automatic reset initializes all counters when power turns on
• External master reset totally independent of automatic reset operation
• Operates at 2n frequency divider or single transition timer
• Q/Q select provides output logic level flexibility
• Reset (auto or master) disables oscillator during reset ting to provide no active power dissipation
• Clock conditioning circuit permits operation with very slow clock rise and fall times
• Wide supply voltage range—3.0V to 15V
• High noise immunity—0.45 VDD (typ.)
• 5V–10V–15V parameter ratings
• Symmetrical output characteristics
• Maximum input leakage 1 µA at 15V over full tempera ture range
• High output drive (pin 8) min. one TTL load
Technical parameters
Parameters
Compare grouped CD4543BM parameters from Texas Instruments, including package, series, key attributes, and technical values used for engineering and sourcing review.
Product Attribute
Part Status
Active
Product Attribute
REACH Status
REACH Unaffected
Product Attribute
ECCN
EAR99
Product Attribute
Lead Free
Lead Free
Product Attribute
Packaging
Tube
Product Attribute
Lifecycle Status
ACTIVE (Last Updated: 2 days ago)
| Parameter | Value |
|---|---|
Part Status Lifecycle status of the part, such as active or obsolete. Indicates availability and long-term support from the manufacturer. Check this before design-in to avoid last-time buys or supply disruptions. Verify with the datasheet or distributor for current status. | Active |
REACH Status Shows whether the component complies with the EU REACH regulation. Essential for legal market access in Europe. Check the manufacturer's latest statement to confirm that no substances of very high concern are present above the threshold. | REACH Unaffected |
ECCN Export Control Classification Number assigned by the U.S. government. Determines whether the component requires an export license. Essential for international trade compliance. Verify the ECCN with the manufacturer or supplier before shipping to avoid legal issues. | EAR99 |
Lead Free Indicates whether the component is manufactured without lead, complying with RoHS and similar regulations. Check this attribute to ensure environmental compliance for your market. Verify against the datasheet for exact material declarations. | Lead Free |
Packaging Indicates the form of delivery for the component, such as tape and reel, tube, or tray. This affects handling, storage, and assembly processes. Verify the packaging type matches your production requirements and equipment compatibility. | Tube |
Lifecycle Status Current stage in the product's lifecycle, such as Active, Obsolete, or End of Life. This indicates availability and long-term supply risk. Check this before designing in a part to ensure it will be available for your product's production lifetime. | ACTIVE (Last Updated: 2 days ago) |
Mounting Type Specifies how the component is attached to the PCB, such as through-hole or surface mount. This affects assembly processes, thermal performance, and mechanical strength. Buyers should verify compatibility with their manufacturing capabilities and design requirements. | Surface Mount |
Factory Lead Time Indicates the typical duration from order confirmation to shipment from the manufacturer's facility. This helps you plan production schedules and inventory. Verify current lead times with your distributor or supplier, as they may vary based on order quantity, product availability, and market conditions. | 6 Weeks |
Termination Describes the method used to connect the component to the circuit board, such as solder, press-fit, or wire wrap. This affects assembly processes, reliability, and repairability. Check the termination type against your PCB footprint and soldering process to ensure compatibility. | SMD/SMT |
Operating Temperature Specifies the ambient temperature range within which the component reliably functions. Compare this with your application's thermal environment to ensure proper operation. Always verify against the datasheet for derating curves and maximum ratings. | -55°C~125°C |
Categories Lists the product categories or classifications assigned to this component, such as connectors, capacitors, or modules. This helps in filtering and comparing similar parts. Review the categories to ensure the component fits your application and to find alternative parts in the same class. | Integrated Circuits (ICs) |
Terminal Position Position of the terminals on the package, such as dual-in-line, gull-wing, or J-lead. This affects PCB layout, soldering, and thermal performance. Engineers must ensure the terminal position matches the footprint and assembly capabilities of their manufacturing line. | DUAL |
Peak Reflow Temperature (Cel) Maximum temperature during reflow soldering that the component can withstand. This is critical for solder joint reliability and preventing damage. Verify that the peak reflow temperature is compatible with your soldering profile and the component's moisture sensitivity level. | 260 |
Terminal Form Describes the physical configuration of the component's leads or pads, such as through-hole, surface mount, or gull-wing. This affects PCB layout, soldering process, and mechanical fit. Confirm compatibility with your assembly method and footprint. | GULL WING |
Supply Voltage Specifies the nominal operating voltage that must be applied to the component for proper function. Verify this value against your system's power rail and the datasheet's absolute maximum ratings to ensure reliable operation and avoid damage. | 5V |
Technology Manufacturing technology or process used for the component, such as thin film, thick film, or semiconductor process. Affects performance, stability, and cost. Confirm the technology matches your application requirements and environmental conditions. | CMOS |
Manufacturer Identifies the company that designed and produced the component. Buyers often filter by manufacturer to ensure brand reliability, quality standards, and supply chain consistency. Verify the manufacturer against the datasheet and official packaging to avoid counterfeit parts. | Texas |
Polarity Specifies whether the component or signal has a defined positive and negative orientation, such as for diodes, electrolytic capacitors, or connectors. Incorrect polarity can cause failure or unsafe operation. Always check the datasheet and board markings before installation. | Non-Inverting |
Package / Case Physical package or case type of the component, defining its dimensions, mounting style, and thermal characteristics. Common types include SMD, through-hole, BGA, and QFN. Choose the package that fits your PCB layout and assembly process. Verify the exact package code in the datasheet for footprint compatibility. | 16-SOIC (0.154, 3.90mm Width) |
Weight Specifies the physical weight of the electronic component, important for logistics, shipping cost, and mechanical design. Verify the exact weight in the datasheet or packaging information, as it may vary with packaging type and quantity. | 141.690917mg |
Width Physical width of the component body, typically in millimeters. Essential for PCB footprint design and mechanical fit. Verify against the datasheet to ensure proper clearance and compatibility with your board layout and enclosure. | 3.91mm |
Height Physical height of the component, measured from the mounting surface to the topmost point. This dimension is critical for clearance in compact assemblies and for ensuring proper fit within enclosures. Always verify against the datasheet for tolerance and mounting considerations. | 1.75mm |
Display Digits Or Characters Specifies the number of digits or characters that can be shown on the display. This is important for selecting displays for numeric readouts or alphanumeric messages. Verify against the datasheet to ensure the display meets your application's information display requirements. | 1 Digit |
Sub-Categories Indicates the specific product subcategories or classifications within the broader component family. Helps narrow down search results and identify the exact type of component needed for your design. Review the subcategory to ensure compatibility with your application. | PMIC - Display Drivers |
Logic IC Type Specifies the logic family and function of the integrated circuit, such as AND gate, flip-flop, or buffer. This attribute helps engineers select the correct logic device for their circuit design. Verify the exact type against the datasheet to ensure compatibility with voltage levels and speed requirements. | SEVEN SEGMENT DECODER/DRIVER |
Interface Specifies the communication protocol or interface type used by the component, such as I2C, SPI, UART, or USB. This determines how the device connects to a microcontroller or system. Verify compatibility with your host controller and bus voltage levels before design-in. | BCD |
Contact Plating Specifies the metal coating applied to the contact surfaces of connectors, switches, or relays. This finish affects conductivity, corrosion resistance, and durability. Engineers should verify the plating material and thickness against the datasheet to ensure reliable performance in the intended environment. | Gold |
Number Of Functions Specifies the count of independent functions or channels integrated into a single component package. This helps engineers determine if the part can handle multiple signal paths or operations simultaneously. Verify against the datasheet to ensure the device meets your circuit's functional requirements. | 1 |
Surface Mount Mounting type: surface mount or through-hole. Surface mount components are placed directly on the PCB, saving space and enabling automated assembly. Through-hole components offer stronger mechanical bonds. Verify the mounting style matches your PCB design and assembly process. | YES |
Radiation Hardening Indicates if the component is designed to withstand ionizing radiation in space, nuclear, or high-energy physics applications. Compare radiation-tolerant vs. radiation-hardened parts for mission-critical designs. Verify the total ionizing dose (TID) and single-event effect (SEE) ratings in the datasheet. | No |
Number Of Terminations Indicates the total number of electrical connection points on the component, such as pins or pads. This is critical for PCB footprint design and assembly. Verify it matches the package specification to ensure proper soldering and connectivity. | 16 |
Pin Count Total number of pins or terminals on the component package. Essential for footprint design, PCB layout, and connector mating. Verify against the datasheet to ensure compatibility with your board and assembly process. | 16 |
Number Of Pins Total number of pins or contacts on the component. This determines the footprint and mating connector requirements. Always match the pin count to your PCB layout and connector specification to ensure proper electrical and mechanical connection. | 16 |
Pb-Free Code Indicates whether the component is lead-free per RoHS or other directives. Buyers use this to verify environmental compliance and avoid restricted substances. Always confirm with the datasheet or certificate of compliance. | yes |
Thickness Thickness of the component, a critical dimension for PCB clearance, enclosure fit, and thermal performance. This measurement is especially important for capacitors, inductors, and connectors. Ensure the thickness meets your design constraints and does not interfere with adjacent components. Check the datasheet for tolerance and recommended mounting height. | 1.58mm |
Length Specifies the physical length of the component body, typically in millimeters. This dimension is critical for PCB layout and mechanical fit. Verify against the datasheet to ensure proper clearance and alignment in your design. | 9.9mm |
Min Input Voltage Minimum voltage required at the input for the component to operate correctly. Below this level, the device may not function or may produce incorrect outputs. Verify that your power supply provides at least this voltage under all load conditions. | 3V |
Bandwidth Indicates the frequency range over which the component operates effectively. Compare bandwidth when selecting amplifiers, filters, or data converters. Verify the specified bandwidth against your signal frequency requirements and the datasheet's test conditions to ensure optimal performance. | 8MHz |
Number Of Bits Bit width of digital data processed by a converter, processor, or memory. Higher bits mean better resolution or precision. Verify against datasheet to match your system's data width and accuracy needs. | 7 |
Load Capacitance Specifies the capacitive load the component is designed to drive, affecting signal integrity and timing. Compare this value with your circuit's trace and input capacitance to ensure stable operation. Verify against the datasheet for optimal performance. | 50pF |
Number Of Outputs Specifies how many independent output channels the component provides. Compare this when selecting power supplies, drivers, or modules to ensure the device can drive all required loads. Always verify against the datasheet for exact output configuration. | 7 |
Input Conditioning Specifies the type of signal conditioning applied to the input, such as filtering, amplification, or isolation. This affects signal integrity and compatibility with your system. Verify the conditioning method against the datasheet to ensure proper interface with your application. | LATCHED |
Output Current Current supplied at the output, indicating the load-driving capability of the component. This is crucial for ensuring the component can drive downstream circuitry without overheating or voltage drop. Compare with your load requirements and check the datasheet for maximum ratings. | 6.8mA |
Low Level Output Current Specifies the current the device can sink when its output is driven to a low logic state. Compare this value with the input current of connected loads to ensure reliable logic levels. Verify against the datasheet for maximum ratings and temperature effects. | 4.2mA |
Quiescent Current Quiescent current is the current drawn by the device when it is in standby or no-load condition. It affects battery life in portable applications. Compare this value across similar components to ensure low power consumption. Always verify against the datasheet for your specific operating conditions. | 100μA |
Maximum Supply Current (ICC) Maximum current drawn from the power supply under specified operating conditions. Compare this value across devices to estimate power consumption and thermal load. Verify against the datasheet for your exact supply voltage and load. | 0.3mA |
Display Type Specifies the display technology used in the component, such as LCD, OLED, or TFT. This attribute helps engineers select the right module for their application. Verify the exact type and resolution in the datasheet to ensure compatibility with your system. | LCD |
Operating Supply Current The amount of current the device draws from its power supply during normal operation. This is essential for power budget calculations, thermal management, and selecting appropriate power sources. Check datasheet for typical and maximum values under specified conditions. | 40nA |
High Level Output Current Specifies the maximum current the output can source when the logic level is high. This is critical for driving loads such as LEDs, relays, or logic inputs. Check this value against your load requirements to avoid output saturation or damage. | -3.33mA |
Base Part Number Identifies the core product family without package, grade, or option suffixes. Use this to compare equivalent components across manufacturers and to locate the primary datasheet. Verify the full ordering code against the manufacturer's specification before design-in. | CD4543 |
Manufacturer'S Part No. The unique part number assigned by the original component manufacturer. Use this to cross-reference datasheets, verify specifications, and ensure the exact component matches your design requirements. Always confirm the number against the manufacturer's official documentation. | CD4543BM |
| Parameter | Value |
|---|---|
Moisture Sensitivity Level (MSL) Indicates the floor life of a component before it must be baked prior to soldering. Higher levels require stricter handling and shorter exposure times. Verify the MSL rating in the datasheet to ensure proper storage and assembly conditions. | 1 (Unlimited) |
RoHS Status Indicates whether the component complies with the EU RoHS directive restricting hazardous substances. Buyers should verify this status for regulatory compliance and market access. Check the datasheet or certificate for exact compliance details. | ROHS3 Compliant |
REACH SVHC Indicates whether the product contains substances of very high concern as per the REACH regulation. Buyers should verify this for compliance with EU environmental standards, especially when exporting to Europe. Check the manufacturer's declaration or datasheet for accurate SVHC status. | No SVHC |
JESD-609 Code This code indicates the terminal finish material per JESD-609 standard. It helps identify the plating type for soldering compatibility and environmental compliance. Check the datasheet for the exact code and its meaning. | e4 |
HTSUS Harmonized Tariff Schedule of the United States code for customs classification. Essential for import/export documentation and duty calculation. Verify the correct code with a trade specialist to avoid customs delays. | 8542.39.0001 |
ECCN Code Export Control Classification Number assigned by the U.S. Commerce Department. It determines export licensing requirements for electronic components. Verify the ECCN against the manufacturer's datasheet or export compliance documentation before shipping internationally. | EAR99 |
| Parameter | Value |
|---|---|
Configuration Specifies the internal circuit topology or arrangement of the component, such as single, dual, or bridge configuration. This attribute helps engineers select the right part for their circuit design. Always verify the exact configuration against the datasheet to ensure compatibility with your application. | 7 Segment |
Logic Function Specifies the Boolean operation performed by the logic IC, such as AND, OR, NAND, or XOR. Engineers compare this to match the required signal processing in their circuit. Verify the exact function against the datasheet to ensure correct logic behavior. | Decoder, Demultiplexer |
Number Of Inputs Defines how many input channels the component supports, such as a multiplexer, logic gate, or amplifier. This determines the maximum number of signals that can be routed or processed. Ensure the input count matches your system's channel requirements and pin configuration. | 4 |
Number Of Elements Indicates how many independent functional sections are integrated into a single component package. This matters when comparing multi-channel devices or resistor networks. Always verify the exact element count against the datasheet to ensure it matches your circuit design requirements. | 1 |
Supply Voltage-Min (Vsup) Minimum supply voltage for proper operation. Check the datasheet to ensure your power rail meets this threshold. Critical for low-voltage designs and battery-powered applications. Compare across parts to avoid undervoltage failures. | 3V |
Supply Voltage Specifies the range of DC or AC input voltage the component requires for proper operation. Engineers compare this to the system power rail to ensure compatibility. Always verify against the datasheet's absolute maximum ratings to prevent damage. | 3V~18V |
Propagation Delay Specifies the time interval between an input transition and the corresponding output transition. Critical for timing analysis in digital circuits. Verify against datasheet for specific test conditions, supply voltage, and load capacitance. | 400 ns |
Turn On Delay Time Time from when the input signal crosses its threshold until the output begins to turn on. This parameter affects switching speed and power dissipation in high-frequency circuits. Verify it against the datasheet for your specific load and drive conditions. | 1.2 μs |
Notice documents
PCN / product notice documents
No public PCN / PDN records currently displayed
No public product notice document is currently displayed for CD4543BM. Confirm PCN, PDN, EOL, date code, and lifecycle status during RFQ before production purchase.
Related sourcing options
Recommended products
Explore related PMIC - Display Drivers products to compare fit, stock status, datasheets, and sourcing options.
Common questions
Product FAQ
Targeted answers for buyers verifying the exact CD4543BM ordering code, packaging, stock, datasheet, and replacement path.
What does CD4543BM mean?
CD4543BM is the exact ordering code listed for a PMIC - Display Drivers component from Texas Instruments. The current package reference is 16-SOIC, with listed context including IC BCD-7SEG LTCH/DEC/DVR 16-SOIC. Buyers should use the full code when requesting stock, price, datasheet, or compliance confirmation.
How should buyers verify the CD4543BM ordering code?
Treat CD4543BM as the full ordering code during RFQ and engineering review. Confirm the listed 16-SOIC package, manufacturer documentation from Texas Instruments, datasheet ordering table, reel or packing details, and any customer approval constraints before substitution or PO release.
What package is CD4543BM supplied in?
CD4543BM is currently listed with package reference 16-SOIC from Texas Instruments. Buyers should confirm the manufacturer package drawing, footprint, pinout, tape-and-reel details, and receiving requirements before approval.
Is CD4543BM currently available?
CD4543BM is currently marked with stock availability on this page. Before ordering, confirm the package (16-SOIC), listed stock (19261), available quantity (52612), required quantity, lead time, final price, compliance needs, and exact ordering code match through RFQ.
Where can I compare CD4543BM alternatives?
A mapped alternative list is not currently published for CD4543BM. Send an RFQ with the target quantity, package constraints, and approval requirements so TrustCompo can help review credible replacement options.





