What is a cross-reference page for CY8C27243-24SXI?
This page groups mapped replacement options for CY8C27243-24SXI so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
CY8C27243-24SXI replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for CY8C27243-24SXI, then verify package, specifications, and application fit before approval.
Compare CY8C27243-24SXI against mapped replacement options
Review package, lifecycle, stock, and MOQ in one view
Move from engineering screening to RFQ without leaving the page
No mapped replacement parts yet
This product currently does not show a published cross-reference list. Use RFQ support if your team needs an alternative part review.
Specification view
Parameter Comparison Chart
A side-by-side view of the source part and its mapped alternatives so buyers and engineers can screen package, availability, lifecycle, and key descriptors before RFQ.
swipe Swipe or scroll horizontally to compare more part numbers
The left column stays visible so buyers can keep the spec label in view while scanning multiple alternatives.
| Parameter Comparison Chart | Current part CY8C27243-24SXI Cypress Semiconductor |
|---|---|
| Part Number | CY8C27243-24SXI |
| Manufacturer | Cypress Semiconductor |
| Category | Integrated Circuits (ICs) |
| Subcategory | Embedded - Microcontrollers |
| Package | 20SOIC |
| Series | PSOC®1 CY8C27xxx |
| Key Attributes | - |
| Description | IC MCU 8BIT 16KB FLASH 20SOIC |
| Lifecycle | - |
| Stock | 173,533 |
| Available | 25,677 |
| Min Order | 1 |
| Datasheet | Available |
| Oscillator Type | Internal |
| RAM Size | 256 x 8 |
| Peripherals | POR, PWM, WDT |
| Connectivity | I2C, SPI, UART/USART |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Memory Size | 16kB |
| Core Size | 8-Bit |
| Program Memory Size | 16KB 16K x 8 |
| Power Supplies | 3.3/5V |
| Bit Size | 8 |
| Program Memory Type | FLASH |
| Data Bus Width | 8b |
| Watchdog Timer | Yes |
| Access Time | 24 μs |
| Core Processor | M8C |
| Boundary Scan | NO |
| CPU Family | M8C |
| Supply Voltage-Min (Vsup) | 4.75V |
| Voltage - Supply (Vcc/Vdd) | 3V~5.25V |
| RAM (words) | 256 |
| Supply Current-Max | 8mA |
| Number of Timers/Counters | 2 |
| Data Converter | A/D 4x14b; D/A 4x9b |
| Part Status | Active |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| Lead Free | Lead Free |
| Packaging | Tube |
| Contact Plating | Gold, Tin |
| Mounting Type | Surface Mount |
| Factory Lead Time | 13 Weeks |
| Published | 2004 |
| Categories | Integrated Circuits (ICs) |
| Terminal Position | DUAL |
| Peak Reflow Temperature (Cel) | 260 |
| Terminal Form | GULL WING |
| Supply Voltage | 5V |
| Technology | CMOS |
| Operating Temperature | -40°C~85°C TA |
| Subcategory | Microcontrollers |
| Sub-Categories | Embedded - Microcontrollers |
| Package / Case | 20-SOIC (0.295, 7.50mm Width) |
| Frequency | 24MHz |
| Surface Mount | YES |
| Reflow Temperature-Max (s) | 30 |
| Radiation Hardening | No |
| Number of ADC Channels | 12 |
| Number of Terminations | 20 |
| Number of Pins | 20 |
| Pin Count | 20 |
| Pbfree Code | yes |
| Manufacturer | Cypress Semiconductor |
| Number of I/O | 16 |
| Length | 13mm |
| Additional Feature | ALSO OPERATES AT 3V WITH 93KHZ |
| Width | 10.64mm |
| Interface | GPIO, I2C, SPI, UART, USART |
| Series | PSOC®1 CY8C27xxx |
| Manufacturer's Part No. | CY8C27243-24SXI |
| Height | 2.66mm |
| Base Part Number | CY8C27243 |
| Weight | 800.987426mg |
| RoHS Status | ROHS3 Compliant |
| REACH SVHC | No SVHC |
| JESD-609 Code | e4 |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| HTSUS | 8542.31.0001 |
| ECCN Code | EAR99 |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing CY8C27243-24SXI replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for CY8C27243-24SXI?
Not automatically. Cross-reference mapping helps shortlist candidates, but package, electrical behavior, qualification scope, and approval rules still need to be checked before release.
Which parameters should teams compare first for CY8C27243-24SXI alternatives?
Start with package, series, key attributes, lifecycle status, stock position, datasheet access, and the mapped pin-to-pin or cross-reference note. Then confirm application-specific requirements in the datasheet and RFQ stage.
Can I request a quote for an alternative to CY8C27243-24SXI?
Yes. Use the product links or RFQ actions on this page to request pricing, availability, documentation, and sourcing support for any listed alternative part.
Is CY8C27243-24SXI obsolete, and what replacement should buyers review first?
Check the lifecycle row on this page first. If buyers need a fast starting point, the strongest mapped replacement currently surfaced here is , followed by the other alternatives shown in the comparison table.
Engineering support
Need help validating the replacement path?
If your team is unsure whether a mapped alternative to CY8C27243-24SXI from Cypress Semiconductor is really usable, contact us for help on package fit, pin compatibility, key parameter gaps, and qualification-facing review questions.
Contact a hardware engineer
Email our engineering support contact at [email protected], or use the contact page if the question should be routed across sourcing, engineering, and support.
developer_board
Package and pin compatibility
Review whether the alternate path looks credible from package, footprint, and pin-level perspectives.
tune
Parameter and function gaps
Surface the electrical, interface, or application-fit questions that still need confirmation before approval.
task_alt
Qualification and approval prep
Organize the documentation, datasheet evidence, and validation checkpoints your internal team may still require.