ATSAMD21J16B-AF vs ATSAMD21J18A-AF Comparison
Detailed side-by-side comparison of ATSAMD21J16B-AF by Microchip Technology and ATSAMD21J18A-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
ATSAMD21J16B-AF - 48MHz Cortex-M0+ MCU, 64KB Flash | Microchip
ATSAMD21J16B-AF β ActiveMicrochip Technology
ATSAMD21J18A-AF - 48MHz Cortex-M0+ 256KB Flash MCU | Microchip
ATSAMD21J18A-AF β ActiveSpecification Comparison
| Parameter | ATSAMD21J16B-AF | ATSAMD21J18A-AF |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.52 | $2.91 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit RISC) |
| Maximum CPU Frequency | 48 MHz | β |
| CoreMark/MHz | 2.46 | β |
| Flash Memory | 64 KB | 256 KB (256K x 8) |
| SRAM | 8 KB | 32 KB |
| Supply Voltage (VDDIO) | 1.62 V to 3.63 V (3.3 V typical) | β |
| Operating Temperature | -40C to +125C (industrial) | -40C to +125C (industrial, AF suffix) |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| ADC | 12-bit, up to 20 channels, 350 ksps | 12-bit, up to 350 ksps, 20 channels, hardware oversampling |
| DAC | 10-bit, 350 ksps | 12-bit, 1 Msps, 1 channel |
| Analog Comparators | 2 | 2 |
| SERCOM Modules | 6 (configurable UART/SPI/I2C) | 6 (each configurable as UART/SPI/I2C) |
| USB | USB 2.0 Full-Speed Device/Host | USB 2.0 Full-Speed Device & Host, with on-chip transceiver |
| DMA Channels | 12 | β |
| Event System Channels | 12 | 12 channels for inter-peripheral signaling |
| Debug Interface | 2-pin Serial Wire Debug (SWD) | β |
| RoHS Status | Compliant | Compliant (Green, Pb-free) |
| Series | β | SAM D21J (Functional Safety / FuSa) |
| Maximum Clock Frequency | β | 48 MHz |
| CoreMark Performance | β | 2.46 CoreMark/MHz |
| Supply Voltage (VDDIN) | β | 1.6 V to 3.6 V |
| GPIO Count | β | Up to 52 |
| Timers (TC/TCC) | β | TC x5, TCC x3 (16-/24-bit) |
| RTC | β | 32.768 kHz RTC with calendar mode |
| MSL Level | β | 3 (per JEDEC J-STD-020) |