Get a Sample
Request engineering samples to evaluate fit, validate alternatives, and keep design decisions moving before a larger order is placed.
Request evaluation samplesMicrochip TechnologyIntegrated Circuits (ICs)Embedded - MicrocontrollersMicrochip Technology Embedded - Microcontrollers
AT32UC3A4256-C1UR Embedded - Microcontrollers by Microchip Technology
AT32UC3A4256-C1UR is a Embedded - Microcontrollers model from Microchip Technology, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / Embedded - Microcontrollers product path. IC MCU 32BIT 256KB FLASH 100BGA. TrustCompo combines the available model, brand, hierarchy, and specification details around AT32UC3A4256-C1UR so buyers can move faster from review to quotation.
RoHS
Datasheet
Pictures are for reference only. Please contact us for the latest pictures.
Key specifications
Series
AVR®32 UC3 A4
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Category
Embedded - MicrocontrollersDescription
IC MCU 32BIT 256KB FLASH 100BGA
key Attributes
-
Datasheet
View AT32UC3A4256-C1UR DatasheetTechnical document
Open The Official Datasheet
Review the latest datasheet for AT32UC3A4256-C1UR from Microchip Technology in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
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.
Ordering workflow
Understand how to order and what policies support the purchase
Use this section to see the fastest ordering path and the policy pages buyers usually review before confirming a component order.
How to order this product
A simple B2B flow helps engineering and procurement teams move from part review to commercial confirmation.
1
Confirm part and quantity
Review the part number, package, key specs, and target quantity so the quote request reflects the exact sourcing scope your team needs.
2
Send RFQ or sample request
Use Quick Quote for commercial pricing or Request Sample when engineering validation is still in progress and a smaller evaluation quantity is needed.
3
Align delivery, payment, and documentation
Before final release, confirm stock timing, shipment method, payment arrangement, and any traceability or inspection documents required by your process.
Policies buyers usually check
These pages explain the operating rules around samples, shipping, payment, and quality support before you place the order.
Shipping & Delivery
Review shipping origin, carrier options, delivery methods, and the practical factors that affect transit timing for global component orders.
Review shipping detailsPayment Terms
Understand supported payment methods, invoice handling, quote currency, and the commercial boundaries used for international B2B orders.
Review payment termsQuality & Traceability Center
See how incoming inspection, outgoing verification, traceability support, certifications, and additional testing fit into our quality workflow.
Review quality controlsStructured product content
Review The Product The Way Buyers Actually Evaluate It
Review overview, detailed specifications, and related sourcing content in one structured flow without scanning separate oversized sections.
Product overview
Overview
IC MCU 32BIT 256KB FLASH 100BGA
Fast scan
Popular Specs Surfaced First
Package Parameter
Height Seated (Max)
1mm
Product Attribute
Part Status
Active
Product Attribute
REACH Status
REACH Unaffected
Product Attribute
Lead Free
Lead Free
Product Attribute
Factory Lead Time
9 Weeks
Product Attribute
Mounting Type
Surface Mount
Height Seated (Max)
1mm
Part Status
Active
REACH Status
REACH Unaffected
Lead Free
Lead Free
Factory Lead Time
9 Weeks
Mounting Type
Surface Mount
Packaging
Tape & Reel (TR)
Published
2009
Categories
Integrated Circuits (ICs)
Peak Reflow Temperature (Cel)
260
Technology
CMOS
Operating Temperature
-40°C~85°C TA
Subcategory
Microcontrollers
Sub-Categories
Embedded - Microcontrollers
Terminal Pitch
0.65mm
Manufacturer
Microchip Technology
ECCN
5A992C
Terminal Form
BALL
Contact Plating
Copper, Silver, Tin
Package / Case
100-VFBGA
Reflow Temperature-Max (S)
30
Radiation Hardening
No
Mount
Surface Mount
Pbfree Code
yes
Operating Supply Voltage
3.3V
Terminal Position
BOTTOM
Length
7mm
Number Of Pins
100
Number Of Terminations
100
Address Bus Width
24
Frequency
66MHz
Supply Voltage
1.85V
Number Of I/O
88
Base Part Number
AT32UC3A4256
Manufacturer'S Part No.
AT32UC3A4256-C1UR
Series
AVR®32 UC3 A4
Interface
EBI/EMI, I2C, IrDA, MMC, SCI, SPI, UART, USART, USB
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
HTSUS
8542.31.0001
Oscillator Type
Internal
UPs/UCs/Peripheral ICs Type
MICROCONTROLLER, RISC
Data Converter
A/D 8x10b
Memory Size
256kB
Core Processor
AVR
ROM (Words)
262144
Core Size
32-Bit
Program Memory Size
256KB 256K x 8
Peripherals
Brown-out Detect/Reset, DMA, POR, WDT
RAM Size
128K x 8
Number Of Timers/Counters
3
Program Memory Type
FLASH
Watchdog Timer
Yes
Has ADC
YES
DAC Channels
YES
PWM Channels
NO
DMA Channels
YES
Bit Size
32
Data Bus Width
32b
Voltage - Supply (Vcc/Vdd)
1.75V~3.6V
Supply Voltage-Max (Vsup)
1.95V
Connectivity
EBI/EMI, I2C, IrDA, Memory Card, SPI, SSC, UART/USART, USB OTG
Common questions
Product FAQ
Quick answers for buyers reviewing AT32UC3A4256-C1UR, stock, documentation, and sourcing steps.
What is AT32UC3A4256-C1UR?
AT32UC3A4256-C1UR is a Embedded - Microcontrollers component from Microchip Technology. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for AT32UC3A4256-C1UR?
AT32UC3A4256-C1UR is listed with package reference -. The current product description is IC MCU 32BIT 256KB FLASH 100BGA, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is AT32UC3A4256-C1UR available in stock?
This page currently shows 71553 units in stock and 61009 units available for AT32UC3A4256-C1UR. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for AT32UC3A4256-C1UR?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for AT32UC3A4256-C1UR by Microchip Technology. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for AT32UC3A4256-C1UR?
Yes. This page links to the datasheet for AT32UC3A4256-C1UR by Microchip Technology, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify AT32UC3A4256-C1UR before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for AT32UC3A4256-C1UR before approving the order.
Embedded - Microcontrollers
Recommended Products
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.
ATXMEGA32E5-M4NR
136 purchased
RoHS
Datasheet
IC MCU 8/16BIT 32KB FLASH 32UQFN
Reference price
Needs inquiry
More sourcing insights
Articles
Explore related articles around AT32UC3A4256-C1UR, Embedded - Microcontrollers, and adjacent sourcing decisions so buyers can compare context before moving from evaluation to RFQ.
Jun 1, 2026
The Ultimate Guide to Cross-Referencing TE Connectivity: Finding Drop-In Alternatives for Sourcing CrisesTE Connectivity cross-reference guide for DEUTSCH DT, Amphenol AT, M8/M12 alternatives, and Dynamic-series replacement risks.
TE Connectivitycross referenceDEUTSCH DT alternative
Jul 1, 2026
Hall Sensor Selection Guide 2026: A Buyer's Framework for Switch, Latch, Linear, and Current-Sense DesignsA practical Hall sensor selection guide for buyers and engineers covering switch, latch, linear, and current-sense devices, with representative part numbers, verification boundaries, and sourcing actions.
Hall sensormagnetic sensorcurrent sensor
Jun 3, 2026
2026 STM32 Chinese Pin-to-Pin Alternative Selection Guide: Mitigating Cost Risks After ST's June Price Rise2026 STM32 Chinese alternative guide covering GD32, APM32, AT32, pin-to-pin replacement risks, and buyer actions after ST's June 28 price increase.
STM32Chinese MCU alternativeGD32