ATSAMD21E16C-UUTB4 vs ATSAMD20E16B-MU Comparison
Detailed side-by-side comparison of ATSAMD21E16C-UUTB4 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
ATSAMD21E16C-UUTB4 - 48MHz Cortex-M0+ MCU 64KB Flash 35-WLCSP
ATSAMD21E16C-UUTB4 β ActiveMicrochip Technology
ATSAMD20E16B-MU - 48MHz Cortex-M0+ MCU 64KB Flash | Microchip
ATSAMD20E16B-MU β ActiveSpecification Comparison
| Parameter | ATSAMD21E16C-UUTB4 | ATSAMD20E16B-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.27 | $1.95 |
| Core Architecture | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Operating Frequency (Max) | 48 MHz | β |
| Program Memory (Flash) | 64 KB | 64 KB (64K x 8) |
| Data Memory (SRAM) | 8 KB | β |
| Data Width | 32-bit | β |
| Package | 35-WLCSP (2.82 x 2.53 mm) | 32-pin VQFN (5x5 mm) with exposed pad |
| Supply Voltage Range | 1.62 V to 3.63 V | β |
| GPIO Count | 26 (per WLCSP ballout) | β |
| ADC | 12-bit, up to 12 channels, 350 kSPS | 12-bit, up to 20 channels |
| DAC | 10-bit, 1 channel | β |
| USB Interface | USB 2.0 Full-Speed with on-chip transceiver | β |
| Serial Interfaces | 2x I2C, 2x SPI, 2x UART, 1x I2S | β |
| Timers | 1x 24-bit + 2x 16-bit + 2x 8-bit TC | β |
| DMA Channels | 12-channel DMAC | β |
| Event System Channels | 12 | β |
| Debug Interface | Serial Wire Debug (SWD), 2-pin | β |
| Functional Safety | FuSa (IEC 60730 Class B capable) | β |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C (industrial) |
| Mounting Type | Surface Mount (WLCSP) | Surface Mount |
| RoHS Status | ROHS3 Compliant | Compliant |
| Maximum CPU Clock | β | 48 MHz |
| SRAM | β | 8 KB |
| Operating Voltage (VDD) | β | 1.62 V to 3.63 V |
| I/O Pins | β | 26 (approx., datasheet-confirm per variant) |
| SERCOM Instances | β | 4 (configurable as UART/SPI/I2C) |
| Analog Comparators | β | 2 |
| Brown-Out Detectors | β | 2 |
| Timers/Counters | β | 6 |
| RTC | β | Yes, 32 kHz domain |
| Watchdog Timer | β | Yes |
| MSL Level | β | 3 (per JEDEC J-STD-020, typical for VQFN) |