ATSAMD20G15A-AU vs ATSAMD21G15B-AU Comparison
Detailed side-by-side comparison of ATSAMD20G15A-AU by Microchip Technology and ATSAMD21G15B-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
ATSAMD20G15A-AU - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
ATSAMD20G15A-AU ✓ ActiveMicrochip Technology
ATSAMD21G15B-AU - 48MHz Cortex-M0+ MCU, 32KB Flash | Microchip
ATSAMD21G15B-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD20G15A-AU | ATSAMD21G15B-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.49 | $1.65 |
| Manufacturer | Microchip Technology (formerly Atmel) | — |
| Series | SAM D20 | — |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Frequency | 48 MHz | — |
| Program Memory (Flash) | 32 KB | — |
| SRAM | 4 KB | 4 KB |
| Supply Voltage Range | 1.62 V to 3.6 V | — |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| GPIO Count | 38 (max) | — |
| ADC | 12-bit, up to 350 ksps | 12-bit, up to 350 ksps, 14 channels |
| DAC | 10-bit | 10-bit, 350 ksps, 1 channel |
| Serial Interfaces (SERCOM) | Up to 6 configurable (USART/SPI/I2C) | — |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device, integrated transceiver |
| Operating Temperature Range | -40 C to +85 C (industrial) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | Compliant | Compliant (Green) |
| Maximum CPU Clock | — | 48 MHz |
| Flash Memory | — | 32 KB (32K x 8) |
| Operating Temperature | — | -40C to +85C (Industrial) |
| Supply Voltage (VDDIN) | — | 1.62 V to 3.63 V |
| GPIO | — | Up to 38 (5 V tolerant inputs) |
| SERCOM | — | 6 (configurable UART/SPI/I2C/I2S) |
| Timer/Counters | — | 6 x 16-bit TC, 1 x 24-bit TCC |
| DMA Channels | — | 12 |
| Event System Channels | — | 12 |
| RTC | — | Yes, 32 kHz domain |
| Analog Comparators | — | 2 |
| Oscillator | — | Internal 8 MHz + DFLL48M + FDPLL96M |
| Debug Interface | — | Serial Wire Debug (SWD), 2-pin |