ATSAMD21J16B-AFT vs ATSAMD20J18A-AU Comparison
Detailed side-by-side comparison of ATSAMD21J16B-AFT by Microchip Technology and ATSAMD20J18A-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
ATSAMD21J16B-AFT - 64KB Flash ARM Cortex-M0+ MCU | Microchip
ATSAMD21J16B-AFT ✓ ActiveMicrochip Technology
ATSAMD20J18A-AU - ARM Cortex-M0+ MCU, 256KB Flash | Microchip
ATSAMD20J18A-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21J16B-AFT | ATSAMD20J18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.55 | $2.15 |
| Core | ARM Cortex-M0+ (32-bit, single core) | ARM Cortex-M0+ (ARMv6-M, 32-bit) |
| CPU Clock Speed | 48 MHz | — |
| Program Memory (Flash) | 64 KB (64K x 8) | — |
| SRAM | 8 KB | 32 KB |
| Package | 64-TQFP (10x10 mm) | 64-LQFP (10x10 mm) |
| Operating Voltage | 1.62 V to 3.63 V | — |
| Typical Operating Voltage | 3.3 V | — |
| Number of I/O | 52 | — |
| Operating Temperature Range | -40C to +125C | -40 C to +85 C |
| Mounting Type | Surface Mount | Surface Mount (LQFP) |
| Packaging | Tape & Reel | — |
| MSL Level | [DATA_NEEDED: MSL Level] | 3 |
| RoHS Status | Compliant | Compliant |
| Lead-Free | Yes | — |
| ADC | 12-bit, 1 MSPS, up to 20 channels | 12-bit, up to 200 ksps |
| DAC | 10-bit, 1 channel | 10-bit |
| Comparators | 2 analog comparators | — |
| Communication Interfaces | 6 SERCOM (UART/SPI/I2C), USB 2.0 FS Device/Host, I2S | — |
| DMA Channels | 12-channel DMAC + 12-channel Event System | 2 (with 12 channels) |
| Debug Interface | Two-pin Serial Wire Debug (SWD) | — |
| Maximum Clock Frequency | — | 48 MHz |
| Flash Memory | — | 256 KB |
| Operating Voltage Range | — | 1.62 V to 3.6 V |
| Programmable I/O Pins | — | Up to 52 |
| SERCOM Interfaces | — | Up to 8 (UART/SPI/I2C/LIN configurable) |
| USB | — | Full-Speed USB 2.0 Device |
| Timer/Counters | — | Six 16-bit TC, one 24-bit TC, one 32-bit RTC |