ATSAMD51J18A-AU vs ATSAMD51J19A-AU Comparison
Detailed side-by-side comparison of ATSAMD51J18A-AU by Microchip Technology and ATSAMD51J19A-AU 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
ATSAMD51J18A-AU - 120MHz Cortex-M4F MCU 256KB Flash 64-TQFP | Microchip
ATSAMD51J18A-AU ✓ ActiveMicrochip Technology
ATSAMD51J19A-AU - 120MHz Cortex-M4F MCU, 512KB Flash | Microchip
ATSAMD51J19A-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD51J18A-AU | ATSAMD51J19A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | ARM Cortex-M4F with single-precision FPU | — |
| Maximum CPU Clock | 120 MHz | — |
| Program Memory (Flash) | 256 KB | 512 KB (512K x 8) with ECC |
| SRAM | 256 KB | 192 KB |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10 x 10 mm) |
| Operating Voltage (VDDIO/VDDIN) | 1.62 V to 3.6 V | — |
| ADC | 12-bit, up to 1 MSPS | 12-bit, 1 MSPS |
| DAC | 12-bit | 2 x 12-bit |
| SERCOM | Up to 6 (configurable UART/SPI/I2C) | Up to 8 configurable (UART/SPI/I2C) |
| USB | USB 2.0 Full-Speed with on-chip PHY | USB 2.0 Full-Speed with integrated PHY |
| Operating Temperature (AU grade) | -40C to +85C | — |
| CoreMark/MHz | 2.46 | — |
| Touch Controller | Peripheral Touch Controller (PTC) | — |
| Mounting Type | Surface Mount (TQFP-64) | Surface Mount |
| RoHS Status | Compliant | Compliant |
| MSL Level | 3 (168 hours) | MSL3 (per JEDEC J-STD-020, typical) |
| Lead-Free | Yes | — |
| ECC Support | Flash + SRAM ECC | — |
| Core Architecture | — | ARM Cortex-M4F with FPU |
| Maximum CPU Frequency | — | 120 MHz |
| CoreMark Score | — | 273 (estimated from 120 MHz) |
| Supply Voltage (VDD) | — | 1.71 V to 3.63 V |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| CAN-FD | — | 2 controllers |
| Peripheral Touch Controller (PTC) | — | Yes, up to 256 channels |
| Cryptographic Accelerator | — | AES + True Random Number Generator |