ATSAME51J18A-AFT vs ATSAME51N20A-AF Comparison
Detailed side-by-side comparison of ATSAME51J18A-AFT by Microchip Technology and ATSAME51N20A-AF by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATSAME51J18A-AFT - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
ATSAME51J18A-AFT ✓ ActiveMicrochip Technology
ATSAME51N20A-AF - 120MHz Cortex-M4F MCU 1MB Flash | Microchip
ATSAME51N20A-AF ✓ ActiveSpecification Comparison
| Parameter | ATSAME51J18A-AFT | ATSAME51N20A-AF |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.21 | $6.55 |
| Core | ARM Cortex-M4F with FPU | ARM Cortex-M4F with single-precision FPU |
| CPU Architecture | 32-bit ARMv7-M | — |
| Maximum CPU Clock | 120 MHz | — |
| Program Flash | 256 KB (with ECC) | — |
| SRAM | 128 KB | 256 KB with ECC |
| Operating Voltage Range | 1.71 V to 3.6 V | — |
| I/O Pins | 51 | — |
| Package | 64-pin TQFP (10x10 mm) | 100-pin TQFP (14x14 mm) |
| Operating Temperature Range | -40 °C to +125 °C (Extended) | — |
| ADC | 12-bit, up to 1 MSPS, up to 16 channels | 12-bit, up to 16 channels, 1 MSPS |
| DAC | 12-bit, 2 channels | 12-bit, 2 channels |
| USB | USB 2.0 Full-Speed Device/Host | USB 2.0 Full-Speed Device/Host with integrated PHY |
| CAN | 2x CAN-FD controllers (ISO 11898-1) | CAN 2.0B + CAN-FD |
| SERCOM | Up to 8 SERCOM (UART/SPI/I2C) | — |
| Cryptographic Accelerator | AES-256, SHA-256, TRNG | — |
| Parallel Capture Controller (PCC) | Yes | — |
| DMA Channels | 24 | — |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | MSL3 (per JEDEC J-STD-020) | 3 (168 hours) |
| RoHS Status | Compliant | Compliant |
| Maximum Clock Frequency | — | 120 MHz |
| Program Memory | — | 1 MB (1M x 8) Flash with ECC, dual-panel |
| Supply Voltage (VDD) | — | 1.71 V to 3.6 V |
| Operating Temperature | — | -40C to +125C (industrial, AEC-Q100) |
| Programmable I/O Pins | — | 81 |
| Serial Engines (SERCOM) | — | Configurable USART/SPI/I2C, multiple instances |
| Timers | — | Multiple TC channels for PWM/capture/quadrature |
| AEC-Q100 | — | Qualified |
| Family | — | SAM E51 (SAM D5x/E5x family) |