ATSAMD21G18A-AU vs ATSAMC21G18A-AU Comparison
Detailed side-by-side comparison of ATSAMD21G18A-AU by Microchip Technology and ATSAMC21G18A-AU 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-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU ✓ ActiveMicrochip Technology
ATSAMC21G18A-AU - 48MHz Cortex-M0+ MCU, 256KB Flash, 5V | Microchip
ATSAMC21G18A-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21G18A-AU | ATSAMC21G18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.78 | $3.05 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Series | SAM D21G (Functional Safety / FuSa) | SAM C21 (Cortex-M0+) |
| Maximum CPU Frequency | 48 MHz | 48 MHz |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB (256K x 8) | — |
| SRAM | 32 KB | 32 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| Programmable I/O Pins | Up to 52 | — |
| ADC | 14-channel, 12-bit | 12-bit, up to 1 Msps, 16 channels |
| DAC | 10-bit | — |
| Peripheral Touch Controller (PTC) | Up to 256 channels (capacitive touch/proximity) | Yes (mutual/self-cap) |
| DMAC Channels | 12 | — |
| Event System Channels | 12 | — |
| Timer/Counters | Up to five 16-bit | — |
| Communication Peripherals (SERCOM) | Configurable as USART / SPI / I2C | — |
| Debug Interface | Serial Wire Debug (SWD), 2-pin | — |
| Sleep Modes | Idle, Standby with SleepWalking | — |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm, 0.5 mm pitch) |
| Mounting Type | Surface Mount | — |
| RoHS Status | Compliant (Green package) | — |
| Program Flash | — | 256 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) |
| GPIO Count | — | Up to 38 |
| SERCOM Modules | — | 6 (UART/SPI/I2C/LIN configurable) |
| CAN-FD | — | Yes (1 channel) |
| Timers/Counters (TC) | — | 16-bit, multiple channels |
| RTC | — | 32-bit RTC with calendar |
| DMA | — | 12 channels (DMAC) |
| AEC-Q100 | — | Grade 1 qualified |
| RoHS | — | Compliant |