ATSAML21G17B-U vs ATSAMD21G18A-MU Comparison
Detailed side-by-side comparison of ATSAML21G17B-U by Microchip Technology and ATSAMD21G18A-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
ATSAML21G17B-U - 48MHz Cortex-M0+ 128KB MCU | Microchip
ATSAML21G17B-U ✓ ActiveMicrochip Technology
ATSAMD21G18A-MU - 256KB Flash Cortex-M0+ MCU, 48MHz | Microchip
ATSAMD21G18A-MU ✓ ActiveSpecification Comparison
| Parameter | ATSAML21G17B-U | ATSAMD21G18A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.98 | $3.15 |
| Core Processor | ARM Cortex-M0+ | — |
| Core Size | 32-Bit | — |
| Maximum Clock Frequency | 48 MHz | — |
| Program Memory Size (Flash) | 128 KB (128K x 8) | — |
| RAM Size | 16 KB | — |
| Package | 48-WLCSP | 48-pin QFN (7x7 mm) |
| Mounting Type | Surface Mount | — |
| Supply Voltage Range | 1.62 V to 3.6 V | — |
| Active Mode Current | < 35 µA/MHz | — |
| Sleep Mode Current | 200 nA (typical) | — |
| Connectivity | I²C, LINbus, SCI, SPI, UART/USART, USB | — |
| Peripherals | DMA, POR, PWM, WDT | — |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed Device with on-chip transceiver |
| ADC | 12-bit (SAR) | 12-bit, up to 350 ksps, up to 20 channels |
| Operating Temperature Range | -40 °C to +85 °C | — |
| RoHS Status | Compliant | Compliant (Green) |
| Functional Safety (FuSa) | Yes | — |
| Touch Sensing | PTC (Peripheral Touch Controller) | — |
| Core Architecture | — | ARM Cortex-M0+ (32-bit) |
| Family | — | SAM D21 (FuSa / IEC 60730 Class B) |
| Max CPU Frequency | — | 48 MHz |
| Flash Memory | — | 256 KB |
| SRAM | — | 32 KB |
| Supply Voltage | — | 1.62 V to 3.6 V |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| DAC | — | 10-bit, 350 ksps |
| SERCOM Modules | — | 6 (each configurable as USART / I2C / SPI / LIN) |
| Timers/Counters | — | TC (8-bit / 16-bit), TCC (16-bit PWM) |
| RTC | — | 32-bit RTC with calendar |
| GPIOs | — | 38 |
| DMA Channels | — | 12 |
| Event System Channels | — | 12 |
| Touch Peripheral | — | PTC (Peripheral Touch Controller) |