ATSAMD21E16B-UUT vs ATSAMD21E16B-UUTB4 Comparison
Detailed side-by-side comparison of ATSAMD21E16B-UUT by Microchip Technology and ATSAMD21E16B-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
ATSAMD21E16B-UUT - 32-bit ARM Cortex-M0+ MCU, 64KB Flash, 35-WLCSP | Microchip
ATSAMD21E16B-UUT ✓ ActiveMicrochip Technology
ATSAMD21E16B-UUTB4 - 48MHz Cortex-M0+ MCU, 64KB Flash | WLCSP-32
ATSAMD21E16B-UUTB4 ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21E16B-UUT | ATSAMD21E16B-UUTB4 |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.32 | $2.28 |
| Core Processor | ARM Cortex-M0+ | ARM Cortex-M0+ (32-bit) |
| Core Size | 32-bit single-core | — |
| Maximum CPU Frequency | 48 MHz | — |
| CoreMark per MHz | 2.46 CoreMark/MHz | — |
| Program Memory (Flash) | 64 KB (64K x 8) | 64 KB |
| SRAM | 8 KB | 8 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| Typical Operating Voltage | 3.3 V | — |
| Package | 35-WLCSP (2.82 x 2.53 mm) | 32-ball WLCSP |
| Connectivity | I2C, LINbus, SPI, UART/USART, USB 2.0 Full-Speed | — |
| USB | Full-Speed Device/Host/Embedded, integrated PHY | USB 2.0 Full-Speed Device/Host with on-chip transceiver |
| ADC | 12-bit, up to 14 channels, 350 ksps | 12-bit, up to 20 channels, 350 ksps |
| DAC | 10-bit, 1 channel, 350 ksps | 2x 12-bit |
| SERCOM Channels | 6 (each reconfigurable as I2C/SPI/UART) | — |
| Timer/Counters | Six 16-bit TC channels, three 24-bit TCC | — |
| RTC | 32-bit RTC with backup domain | — |
| Operating Temperature | -40C to +85C (industrial) | -40 C to +85 C |
| Mounting Type | Surface Mount (WLCSP, BGA-style balls) | Surface Mount |
| RoHS Status | Compliant (Green) | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] | MSL1 (per WLCSP handling) |
| Maximum Clock Frequency | — | 48 MHz |
| Supply Voltage | — | 1.62 V to 3.63 V |
| SERCOM Modules | — | 6 (configurable as I2C/SPI/UART/USART) |
| Timers/Counters | — | TCC (6 PWM), TC (3x 16-bit), RTC |
| External Interrupts | — | 16 lines + 1 NMI |
| Debug Interface | — | Serial Wire Debug (SWD) |