ATSAMD20E16B-MU vs ATSAMD21E16C-UUTB4 Comparison
Detailed side-by-side comparison of ATSAMD20E16B-MU by Microchip Technology and ATSAMD21E16C-UUTB4 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
ATSAMD21E16C-UUTB4 - 48MHz Cortex-M0+ MCU 64KB Flash 35-WLCSP
ATSAMD21E16C-UUTB4 β ActiveSpecification Comparison
| Parameter | ATSAMD20E16B-MU | ATSAMD21E16C-UUTB4 |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.95 | $3.27 |
| Core Architecture | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum CPU Clock | 48 MHz | β |
| Program Memory (Flash) | 64 KB (64K x 8) | 64 KB |
| SRAM | 8 KB | β |
| Package | 32-pin VQFN (5x5 mm) with exposed pad | 35-WLCSP (2.82 x 2.53 mm) |
| Operating Voltage (VDD) | 1.62 V to 3.63 V | β |
| 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 12 channels, 350 kSPS |
| Analog Comparators | 2 | β |
| Brown-Out Detectors | 2 | β |
| Timers/Counters | 6 | β |
| RTC | Yes, 32 kHz domain | β |
| Watchdog Timer | Yes | β |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C |
| Mounting Type | Surface Mount | Surface Mount (WLCSP) |
| RoHS Status | Compliant | ROHS3 Compliant |
| MSL Level | 3 (per JEDEC J-STD-020, typical for VQFN) | β |
| Operating Frequency (Max) | β | 48 MHz |
| Data Memory (SRAM) | β | 8 KB |
| Data Width | β | 32-bit |
| Supply Voltage Range | β | 1.62 V to 3.63 V |
| GPIO Count | β | 26 (per WLCSP ballout) |
| DAC | β | 10-bit, 1 channel |
| USB Interface | β | USB 2.0 Full-Speed with on-chip transceiver |
| Serial Interfaces | β | 2x I2C, 2x SPI, 2x UART, 1x I2S |
| Timers | β | 1x 24-bit + 2x 16-bit + 2x 8-bit TC |
| DMA Channels | β | 12-channel DMAC |
| Event System Channels | β | 12 |
| Debug Interface | β | Serial Wire Debug (SWD), 2-pin |
| Functional Safety | β | FuSa (IEC 60730 Class B capable) |