ATSAMC21G18A-AU vs ATSAMD21G18A-AU Comparison
Detailed side-by-side comparison of ATSAMC21G18A-AU by Microchip Technology and ATSAMD21G18A-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
ATSAMC21G18A-AU - 48MHz Cortex-M0+ MCU, 256KB Flash, 5V | Microchip
ATSAMC21G18A-AU ✓ ActiveMicrochip Technology
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMC21G18A-AU | ATSAMD21G18A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.05 | $2.78 |
| Series | SAM C21 (Cortex-M0+) | SAM D21G (Functional Safety / FuSa) |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Frequency | 48 MHz | 48 MHz |
| Program Flash | 256 KB | — |
| SRAM | 32 KB | 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-pin TQFP (7x7 mm) |
| 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 | 14-channel, 12-bit |
| Timers/Counters (TC) | 16-bit, multiple channels | — |
| RTC | 32-bit RTC with calendar | — |
| Peripheral Touch Controller (PTC) | Yes (mutual/self-cap) | Up to 256 channels (capacitive touch/proximity) |
| DMA | 12 channels (DMAC) | — |
| AEC-Q100 | Grade 1 qualified | — |
| RoHS | Compliant | — |
| CoreMark/MHz | — | 2.46 |
| Flash Memory | — | 256 KB (256K x 8) |
| Operating Voltage Range | — | 1.62 V to 3.63 V |
| Programmable I/O Pins | — | Up to 52 |
| DAC | — | 10-bit |
| 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 |
| Mounting Type | — | Surface Mount |
| RoHS Status | — | Compliant (Green package) |