ATSAMD20E16B-MU vs ATSAMD21E16B-MU Comparison
Detailed side-by-side comparison of ATSAMD20E16B-MU by Microchip Technology and ATSAMD21E16B-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
ATSAMD20E16B-MU - 48MHz Cortex-M0+ MCU 64KB Flash | Microchip
ATSAMD20E16B-MU β ActiveMicrochip Technology
ATSAMD21E16B-MU - ARM Cortex-M0+ MCU, 48MHz, 64KB Flash | Microchip
ATSAMD21E16B-MU β ActiveSpecification Comparison
| Parameter | ATSAMD20E16B-MU | ATSAMD21E16B-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.95 | $2.65 |
| Core Architecture | ARM Cortex-M0+ | β |
| Maximum CPU Clock | 48 MHz | 48 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) | 64 KB (in-system self-programmable) |
| SRAM | 8 KB | 8 KB |
| Package | 32-pin VQFN (5x5 mm) with exposed pad | 32-pin VQFN (5x5 mm) |
| Operating Voltage (VDD) | 1.62 V to 3.63 V | 1.62 V to 3.63 V |
| I/O Pins | 26 (approx., datasheet-confirm per variant) | β |
| SERCOM Instances | 4 (configurable as UART/SPI/I2C) | β |
| ADC | 12-bit, up to 20 channels | 12-bit, up to 350 ksps, 10 channels |
| Analog Comparators | 2 | β |
| Brown-Out Detectors | 2 | β |
| Timers/Counters | 6 | 4 x 16-bit TC, plus 32-bit RTC |
| RTC | Yes, 32 kHz domain | β |
| Watchdog Timer | Yes | β |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant (Green) |
| MSL Level | 3 (per JEDEC J-STD-020, typical for VQFN) | 3 (per JEDEC J-STD-020) |
| Core | β | ARM Cortex-M0+ (32-bit, single-core) |
| CoreMark/MHz | β | 2.46 |
| I/O Voltage (VDDIO) | β | 1.62 V to VDD (separate I/O rail) |
| USB | β | USB 2.0 Full-Speed Device/Host |
| DAC | β | 10-bit, 350 ksps, 1 channel |
| SERCOM Modules | β | 6 (each configurable as I2C / SPI / USART) |
| DMA Channels | β | 14 |
| External Interrupts (EIC) | β | 16 + 1 NMI |
| Debug Interface | β | Serial Wire Debug (SWD), 2-pin |
| Micro Trace Buffer | β | Yes |
| Peripheral Touch Controller (PTC) | β | Capacitive touch: buttons, slider, wheel |