ATSAMD21J18A-AF vs ATSAMD21G18A-MU Comparison
Detailed side-by-side comparison of ATSAMD21J18A-AF by Microchip Technology and ATSAMD21G18A-MU 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
ATSAMD21J18A-AF - 48MHz Cortex-M0+ 256KB Flash MCU | Microchip
ATSAMD21J18A-AF ✓ ActiveMicrochip Technology
ATSAMD21G18A-MU - 256KB Flash Cortex-M0+ MCU, 48MHz | Microchip
ATSAMD21G18A-MU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21J18A-AF | ATSAMD21G18A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.99 | $3.15 |
| Core | ARM Cortex-M0+ (32-bit) | — |
| Family | SAM D21J | SAM D21 (FuSa / IEC 60730 Class B) |
| Maximum Clock Frequency | 48 MHz | — |
| CoreMark Score | 2.46 CoreMark/MHz | — |
| Flash Memory | 256 KB (256K x 8) | 256 KB |
| SRAM | 32 KB | 32 KB |
| Supply Voltage Range | 1.6 V to 3.6 V | — |
| GPIO Count | Up to 52 | — |
| SERCOM Modules | 6 (configurable as UART/SPI/I2C) | 6 (each configurable as USART / I2C / SPI / LIN) |
| ADC | 12-bit, up to 350 ksps, hardware oversampling | 12-bit, up to 350 ksps, up to 20 channels |
| DAC | 12-bit, 1 Msps | 10-bit, 350 ksps |
| Analog Comparators | 2 | — |
| USB | USB 2.0 Full-Speed Device/Host | USB 2.0 Full-Speed Device with on-chip transceiver |
| Package | 64-pin TQFP (10x10 mm) | 48-pin QFN (7x7 mm) |
| Operating Temperature | -40C to +125C (industrial) | -40 C to +85 C (industrial) |
| Carrier Type | Tray | — |
| RoHS Status | Compliant | Compliant (Green) |
| Core Architecture | — | ARM Cortex-M0+ (32-bit) |
| Max CPU Frequency | — | 48 MHz |
| Supply Voltage | — | 1.62 V to 3.6 V |
| Timers/Counters | — | TC (8-bit / 16-bit), TCC (16-bit PWM) |
| RTC | — | 32-bit RTC with calendar |
| GPIOs | — | 38 |
| DMA Channels | — | 12 |
| Event System Channels | — | 12 |
| Touch Peripheral | — | PTC (Peripheral Touch Controller) |