ATSAMC21G18A-AU vs ATSAML21G17B-U Comparison
Detailed side-by-side comparison of ATSAMC21G18A-AU 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
ATSAMC21G18A-AU - 48MHz Cortex-M0+ MCU, 256KB Flash, 5V | Microchip
ATSAMC21G18A-AU ✓ ActiveMicrochip Technology
ATSAML21G17B-U - 48MHz Cortex-M0+ 128KB MCU | Microchip
ATSAML21G17B-U ✓ ActiveSpecification Comparison
| Parameter | ATSAMC21G18A-AU | ATSAML21G17B-U |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.05 | $2.98 |
| Series | SAM C21 (Cortex-M0+) | — |
| Core | ARM Cortex-M0+ (32-bit) | — |
| Maximum CPU Frequency | 48 MHz | — |
| Program Flash | 256 KB | — |
| SRAM | 32 KB | — |
| Supply Voltage | 2.7 V to 5.5 V | — |
| I/O Tolerance | 5V tolerant | — |
| Operating Temperature | -40 C to +85 C (industrial, AU suffix) | — |
| Package | 48-pin TQFP (7x7 mm, 0.5 mm pitch) | 48-WLCSP |
| GPIO Count | Up to 38 | — |
| SERCOM Modules | 6 (UART/SPI/I2C/LIN configurable) | — |
| CAN-FD | Yes (1 channel) | — |
| ADC | 12-bit, up to 1 Msps, 16 channels | 12-bit (SAR) |
| Timers/Counters (TC) | 16-bit, multiple channels | — |
| RTC | 32-bit RTC with calendar | — |
| Peripheral Touch Controller (PTC) | Yes (mutual/self-cap) | — |
| DMA | 12 channels (DMAC) | — |
| AEC-Q100 | Grade 1 qualified | — |
| RoHS | 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 |
| USB | — | USB 2.0 Full-Speed Device |
| Operating Temperature Range | — | -40 °C to +85 °C |
| RoHS Status | — | Compliant |
| Functional Safety (FuSa) | — | Yes |
| Touch Sensing | — | PTC (Peripheral Touch Controller) |