ATSAMD21G18A-AU vs ATSAMD21G18A-AF Comparison
Detailed side-by-side comparison of ATSAMD21G18A-AU by Microchip Technology and ATSAMD21G18A-AF 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
ATSAMD21G18A-AF - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AF ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21G18A-AU | ATSAMD21G18A-AF |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.78 | $3.49 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (SAM D21) |
| Series | SAM D21G (Functional Safety / FuSa) | — |
| Maximum CPU Frequency | 48 MHz | — |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB (256K x 8) | 256 KB |
| 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 350 ksps |
| DAC | 10-bit | 10-bit, 350 ksps |
| Peripheral Touch Controller (PTC) | Up to 256 channels (capacitive touch/proximity) | — |
| 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 | Two-pin Serial Wire Debug (SWD) |
| Sleep Modes | Idle, Standby with SleepWalking | — |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (Green package) | Compliant |
| Core Architecture | — | 32-bit RISC, Thumb/Thumb-2 instruction set |
| Maximum CPU Clock | — | 48 MHz |
| Supply Voltage (VDD) | — | 1.62 V to 3.63 V |
| USB | — | Full-speed USB 2.0 device with on-the-go (OTG) |
| SERCOM Channels | — | Up to 6 (configurable as I2C/SPI/UART) |
| Timers | — | Up to 5 x 16-bit Timer/Counters (TC) |
| DMA Channels | — | 12-channel DMAC |
| Event System | — | 12-channel inter-peripheral |
| Operating Temperature | — | -40C to +85C |