ATSAMD21G18A-MU vs ATSAML21G17B-U Comparison
Detailed side-by-side comparison of ATSAMD21G18A-MU by Microchip Technology and ATSAML21G17B-U 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
ATSAMD21G18A-MU - 256KB Flash Cortex-M0+ MCU, 48MHz | Microchip
ATSAMD21G18A-MU ✓ ActiveMicrochip Technology
ATSAML21G17B-U - 48MHz Cortex-M0+ 128KB MCU | Microchip
ATSAML21G17B-U ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21G18A-MU | ATSAML21G17B-U |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.15 | $2.98 |
| 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) | — |
| Package | 48-pin QFN (7x7 mm) | 48-WLCSP |
| USB | USB 2.0 Full-Speed Device with on-chip transceiver | USB 2.0 Full-Speed Device |
| ADC | 12-bit, up to 350 ksps, up to 20 channels | 12-bit (SAR) |
| 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) | — |
| RoHS Status | Compliant (Green) | Compliant |
| 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 |
| 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 |
| Operating Temperature Range | — | -40 °C to +85 °C |
| Functional Safety (FuSa) | — | Yes |
| Touch Sensing | — | PTC (Peripheral Touch Controller) |