ATSAME51J20A-AF vs ATSAME51J18A-AF Comparison
Detailed side-by-side comparison of ATSAME51J20A-AF by Microchip Technology and ATSAME51J18A-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
ATSAME51J20A-AF - 120MHz Cortex-M4F MCU, 1MB Flash | Microchip
ATSAME51J20A-AF ✓ ActiveMicrochip Technology
ATSAME51J18A-AF - 120MHz Cortex-M4F MCU, 256KB Flash | Microchip
ATSAME51J18A-AF ✓ ActiveSpecification Comparison
| Parameter | ATSAME51J20A-AF | ATSAME51J18A-AF |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.10 | $3.85 |
| Core Architecture | ARM Cortex-M4F with FPU and DSP extensions | — |
| Maximum CPU Clock | 120 MHz | 120 MHz |
| Program Memory | 1 MB (1M x 8) dual-panel Flash with ECC | — |
| SRAM | 256 KB | 128 KB |
| Supply Voltage | 1.71 V to 3.63 V | — |
| Operating Temperature | -40 C to +125 C (extended) | -40 C to +125 C (extended industrial) |
| Package | 64-pin TQFP, 10 mm x 10 mm, 0.5 mm pitch | 64-pin TQFP (10x10 mm) |
| ADC | 1 MSPS, 12-bit, up to 16 channels | 12-bit, up to 1 Msps, up to 16 channels |
| DAC | 12-bit, 2 channels | — |
| Communication Interfaces | USB 2.0 Full-Speed, 2x CAN-FD, Ethernet MAC 10/100 with 1588, 4x SERCOM (UART/SPI/I2C), 2x I2S, 1x HS SD Card / eMMC | — |
| Timer/Counter | 5x 16-bit TC, 3x 24-bit TCC for PWM | — |
| DMA | DMAC with 32 channels + Event System | — |
| Memory Protection | TrustZone-M (optional, SAM E51 variant dependent) | — |
| Automotive Qualification | AEC-Q100 qualified | — |
| Mounting Type | Surface Mount (TQFP) | Surface Mount (TQFP) |
| MSL Level | 3 (168 hours) | 3 (168 hours) |
| Core | — | ARM Cortex-M4F with FPU and DSP |
| Program Memory (Flash) | — | 256 KB dual-panel Flash with ECC |
| Supply Voltage (VDD) | — | 1.71 V to 3.6 V |
| GPIO Count | — | Up to 51 programmable I/O pins |
| USB | — | USB 2.0 Full-Speed device/host with on-chip PHY |
| CAN | — | CAN 2.0B and CAN-FD controller |
| SERCOM | — | Configurable UART / SPI / I2C interfaces |
| Timers/Counters | — | TC blocks for capture, compare, PWM, quadrature decode |
| Event System | — | 8-channel inter-peripheral event signalling |
| RoHS Status | — | Compliant |