ATSAMD20G16A-AUT vs ATSAMD21G18A-AU Comparison
Detailed side-by-side comparison of ATSAMD20G16A-AUT by Microchip Technology and ATSAMD21G18A-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
ATSAMD20G16A-AUT - 48MHz Cortex-M0+ MCU 64KB Flash | Microchip
ATSAMD20G16A-AUT ✓ ActiveMicrochip Technology
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD20G16A-AUT | ATSAMD21G18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.92 | $2.78 |
| Core Architecture | ARM Cortex-M0+ (32-bit) | — |
| Maximum Clock Frequency | 48 MHz | — |
| Program Memory (Flash) | 64 KB (64K x 8) | — |
| SRAM | 8 KB | 32 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | 1.62 V to 3.63 V |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Pin Count | 48 | — |
| Temperature Grade | Industrial (-40 C to +85 C) | — |
| ADC | 12-bit, up to 350 ksps | 14-channel, 12-bit |
| ADC Channels | [DATA_NEEDED: ADC channel count] | — |
| SERCOM Channels | 6 (configurable as UART/SPI/I2C) | — |
| USB | USB 2.0 Full-Speed Device | — |
| Timer/Counters | 2 x 16-bit TC, 1 x 32-bit RTC | Up to five 16-bit |
| GPIOs | [DATA_NEEDED: GPIO count] | — |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant (Green package) |
| Lead-Free | Yes | — |
| Core | — | ARM Cortex-M0+ (32-bit) |
| Series | — | SAM D21G (Functional Safety / FuSa) |
| Maximum CPU Frequency | — | 48 MHz |
| CoreMark/MHz | — | 2.46 |
| Flash Memory | — | 256 KB (256K x 8) |
| Programmable I/O Pins | — | Up to 52 |
| DAC | — | 10-bit |
| Peripheral Touch Controller (PTC) | — | Up to 256 channels (capacitive touch/proximity) |
| DMAC Channels | — | 12 |
| Event System Channels | — | 12 |
| Communication Peripherals (SERCOM) | — | Configurable as USART / SPI / I2C |
| Debug Interface | — | Serial Wire Debug (SWD), 2-pin |
| Sleep Modes | — | Idle, Standby with SleepWalking |