ATSAM3U2CA-AUAlternatives & Equivalent Parts
About ATSAM3U2CA-AU
ATSAM3U2CA-AU 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 | ATSAM3U2CA-AUSource | ATSAM3U4CA-AU | ATSAM3U4EA-AU |
|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip |
| Package Type | Quad Flat Packages | Quad Flat Packages | Quad Flat Packages |
| Pin Count | 100 | 100 | 144 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $4.5300 | $5.6000 | $7.3900 |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | Yes |
| Manufacturer Package Code | LQFP-100 | LQFP-100 | LQFP-144 |
| Factory Lead Time | 4 Weeks | 4 Weeks | 9 Weeks |
| YTEOL | 14 | 14 | 14 |
| Has ADC | YES | YES | YES |
| Address Bus Width | 24 | 24 | 24 |
| Bit Size | 32 | 32 | 32 |
| Boundary Scan | YES | YES | YES |
| CPU Family | CORTEX-M3 | CORTEX-M3 | CORTEX-M3 |
| Clock Frequency-Max | 12 MHz | 12 MHz | 12 MHz |
| DAC Channels | YES | YES | YES |
| DMA Channels | YES | YES | YES |
| External Data Bus Width | 8 | 8 | 8 |
| Format | FIXED POINT | FIXED POINT | FIXED POINT |
| Integrated Cache | NO | NO | NO |
| JESD-30 Code | S-PQFP-G100 | S-PQFP-G100 | S-PQFP-G144 |
| JESD-609 Code | e3 | e3 | e3 |
| Low Power Mode | YES | YES | YES |
| Number of DMA Channels | 4 | 4 | 4 |
| Number of I/O Lines | 57 | 57 | 96 |
| Number of Serial I/Os | 3 | 3 | 3 |
| Number of Timers | 3 | 3 | 3 |
| 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 | QFP100,.63SQ | QFP100,.63SQ | QFP144,.87SQ,20 |
| Package Shape | SQUARE | SQUARE | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH | FLATPACK, LOW PROFILE, FINE PITCH | FLATPACK, LOW PROFILE, FINE PITCH |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| RAM (bytes) | 36864 | 53248 | 53248 |
| ROM (words) | 131072 | 262144 | 262144 |
| ROM Programmability | FLASH | FLASH | FLASH |
| Speed | 96 MHz | 96 MHz | 96 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 |
| 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, CORTEX-M3 CPU, 96MHz, CMOS, PQFP100
Why Look for Alternatives?
Finding alternatives for ATSAM3U2CA-AU 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 ATSAM3U2CA-AU 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 ATSAM3U2CA-AU?
Known equivalents for ATSAM3U2CA-AU include ATSAM3U4CA-AU, ATSAM3U4EA-AU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of ATSAM3U2CA-AU?
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 ATSAM3U2CA-AU 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.