ATSAMD21E16L-AF vs ATSAMD20E16B-MU Comparison
Detailed side-by-side comparison of ATSAMD21E16L-AF by Microchip Technology and ATSAMD20E16B-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
ATSAMD21E16L-AF - ARM Cortex-M0+ 48MHz 64KB MCU | Microchip
ATSAMD21E16L-AF ✓ ActiveMicrochip Technology
ATSAMD20E16B-MU - 48MHz Cortex-M0+ MCU 64KB Flash | Microchip
ATSAMD20E16B-MU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21E16L-AF | ATSAMD20E16B-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.85 | $1.95 |
| Product Type | 32-bit ARM Microcontroller (MCU) | — |
| Core | ARM Cortex-M0+ | — |
| Family | SAM D21E (Enhanced with FuSa) | — |
| Maximum CPU Frequency | 48 MHz | — |
| Program Memory (Flash) | 64 KB | 64 KB (64K x 8) |
| Data Memory (SRAM) | 8 KB | — |
| Package | 32-pin TQFP (7x7 mm) | 32-pin VQFN (5x5 mm) with exposed pad |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| Operating Temperature Range | -40 C to +125 C (industrial/automotive grade) | — |
| ADC | 12-bit, up to 10 channels, 350 ksps | 12-bit, up to 20 channels |
| DAC | 10-bit, 1 channel | — |
| Timer/Counters | Four 16-bit TC, one 32-bit TC, one RTC | — |
| Communication Interfaces | Up to 6 SERCOM (UART/SPI/I2C), USB 2.0 Full-Speed Device/Host, I2S | — |
| DMA Channels | 12 channels | — |
| Event System Channels | 12 channels | — |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 3 (168 hours) | 3 (per JEDEC J-STD-020, typical for VQFN) |
| RoHS Status | Compliant | Compliant |
| Core Architecture | — | ARM Cortex-M0+ |
| Maximum CPU Clock | — | 48 MHz |
| SRAM | — | 8 KB |
| Operating Voltage (VDD) | — | 1.62 V to 3.63 V |
| I/O Pins | — | 26 (approx., datasheet-confirm per variant) |
| SERCOM Instances | — | 4 (configurable as UART/SPI/I2C) |
| Analog Comparators | — | 2 |
| Brown-Out Detectors | — | 2 |
| Timers/Counters | — | 6 |
| RTC | — | Yes, 32 kHz domain |
| Watchdog Timer | — | Yes |
| Operating Temperature | — | -40 C to +85 C (industrial) |