AT32UC3A1256-AUTAlternatives & Equivalent Parts
About AT32UC3A1256-AUT
AT32UC3A1256-AUT is a Integrated Circuit component manufactured by Microchip. It comes in a Quad Flat Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | AT32UC3A1256-AUTSource | AT32UC3A1128-AUT | AT32UC3A1512-AUT |
|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip |
| Package Type | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages |
| Pin Count | 100 | 100 | 100 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $7.1685 | $6.8141 | $9.9200 |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | Yes |
| Manufacturer Package Code | TQFP-100 | TQFP-100 | TQFP-100 |
| Factory Lead Time | 8 Weeks | 8 Weeks | 8 Weeks |
| YTEOL | 14 | 14 | 14 |
| Has ADC | YES | YES | YES |
| Additional Feature | IT ALSO OPERATES AT 3.3 V | IT ALSO OPERATES AT 3.3 V | IT ALSO OPERATES AT 3.3 V |
| Address Bus Width | 24 | 24 | 24 |
| Bit Size | 32 | 32 | 32 |
| Boundary Scan | YES | YES | YES |
| CPU Family | AVR RISC | AVR RISC | AVR RISC |
| Clock Frequency-Max | 16 MHz | 16 MHz | 16 MHz |
| DAC Channels | YES | YES | YES |
| DMA Channels | YES | YES | YES |
| External Data Bus Width | 16 | 16 | 16 |
| Format | FIXED POINT | FIXED POINT | FIXED POINT |
| Integrated Cache | NO | NO | NO |
| JESD-30 Code | S-PQFP-G100 | S-PQFP-G100 | S-PQFP-G100 |
| JESD-609 Code | e3 | e3 | e3 |
| Low Power Mode | YES | YES | YES |
| Number of DMA Channels | 15 | 15 | 15 |
| Number of I/O Lines | 69 | 69 | 69 |
| Number of Serial I/Os | 4 | 4 | 4 |
| Number of Timers | 1 | 1 | 1 |
| On Chip Data RAM Width | 8 | 8 | 8 |
| On Chip Program ROM Width | 8 | 8 | 8 |
| PWM Channels | YES | YES | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP100,.63SQ | TQFP100,.63SQ | TQFP100,.63SQ |
| Package Shape | SQUARE | SQUARE | SQUARE |
| Package Style | FLATPACK, THIN PROFILE, FINE PITCH | FLATPACK, THIN PROFILE, FINE PITCH | FLATPACK, THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| RAM (bytes) | 65536 | 32768 | 65536 |
| ROM (words) | 262144 | 131072 | 524288 |
| ROM Programmability | FLASH | FLASH | FLASH |
| Speed | 66 MHz | 66 MHz | 66 MHz |
| Supply Voltage-Max | 1.95 V | 1.95 V | 1.95 V |
| Supply Voltage-Min | 1.8 V | 1.8 V | 1.8 V |
| Supply Voltage-Nom | 1.8 V | 1.8 V | 1.8 V |
| Surface Mount | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 0.5 mm | 0.5 mm | 0.5 mm |
| Terminal Position | QUAD | QUAD | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
RISC Microcontroller, 32-Bit, FLASH, AVR RISC CPU, 66MHz, CMOS, PQFP100
Why Look for Alternatives?
Finding alternatives for AT32UC3A1256-AUT is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating AT32UC3A1256-AUT replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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What is equivalent to AT32UC3A1256-AUT?
Known equivalents for AT32UC3A1256-AUT include AT32UC3A1128-AUT, AT32UC3A1512-AUT. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT32UC3A1256-AUT?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify AT32UC3A1256-AUT alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.