SAME51J in SAM Microcontrollers Family
The SAME51J family, manufactured by Microchip Technology, is a series of high-performance 32-bit microcontrollers based on the ARM Cortex-M4F core with an integrated Floating Point Unit. These MCUs operate at frequencies up to 120MHz and are specifically designed for industrial and automotive applications that require robust communication interfaces, including Dual CAN-FD and 10/100 Ethernet MAC. They provide a high level of integration with advanced analog peripherals and security features, bridging the gap between general-purpose MCUs and high-end processors.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Speed | RAM | Package | Flash | Temp Range | Stock |
|---|---|---|---|---|---|---|
| ATSAME51J20A-AUT (Microchip Technology) | 120M | 256K | TQFP-64 | 1MB | -40degC ~ 85degC (.. | 2,027 |
| ATSAME51J19A-AFT (Microchip Technology) | 120M | 192K | TQFP-64 | 512KB | -40degC ~ 125degC .. | 1,082 |
| ATSAME51J20A-AFT (Microchip Technology) | 120M | 256K | TQFP-64 | 1MB | -40degC ~ 125degC .. | 1,128 |
| ATSAME51J20A-AU (Microchip Technology) | 120M | 256K | TQFP-64 | 1MB | -40degC ~ 85degC (.. | 540 |
| ATSAME51J20A-MZVAO (Microchip Technology) | 100M | 256K | VFQFN-64 | 1MB | -40degC ~ 125degC .. | 165 |
| ATSAME51J20A-AZVAO (Microchip Technology) | 100M | 256K | TQFP-64 | 1MB | -40degC ~ 125degC .. | 138 |
Variants within the SAME51J sub-family are primarily distinguished by their integrated Flash memory capacity, ranging from 512KB to 1MB, and their thermal qualification tiers. The line includes standard commercial-grade components and automotive-qualified versions (indicated by VAO suffixes) which offer enhanced reliability and testing. While they share the 64-pin TQFP or QFN footprint, specific part numbers denote packaging materials, tape-and-reel options, and extended temperature range capabilities.
