ATSAMD21G18A-AU vs ATSAMD21G16B-AU Comparison
Detailed side-by-side comparison of ATSAMD21G18A-AU by Microchip Technology and ATSAMD21G16B-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
ATSAMD21G16B-AU - 48MHz ARM M0+ MCU 64KB Flash 48-TQFP | Microchip
ATSAMD21G16B-AU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21G18A-AU | ATSAMD21G16B-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.78 | $2.52 |
| Core | ARM Cortex-M0+ (32-bit) | — |
| Series | SAM D21G (Functional Safety / FuSa) | — |
| Maximum CPU Frequency | 48 MHz | 48 MHz |
| CoreMark/MHz | 2.46 | 2.46 |
| Flash Memory | 256 KB (256K x 8) | 64 KB (in-system self-programmable) |
| SRAM | 32 KB | 8 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| Programmable I/O Pins | Up to 52 | — |
| ADC | 14-channel, 12-bit | — |
| DAC | 10-bit | — |
| 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 | Serial Wire Debug (SWD), 2-pin |
| Sleep Modes | Idle, Standby with SleepWalking | — |
| Package | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| Mounting Type | Surface Mount | — |
| RoHS Status | Compliant (Green package) | Compliant (Green) |
| Core Architecture | — | ARM Cortex-M0+ (32-bit) |
| Family | — | SAM D21G |
| Supply Voltage (VDD) | — | 1.62 V to 3.63 V |
| I/O Pins | — | 38 (maximum) |
| External Interrupts (EIC) | — | 16 |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| Hardware Multiplier | — | Single-cycle 32-bit |
| DFLL48M | — | 48 MHz Digital Frequency Locked Loop |
| MSL Level | — | MSL3 (per JEDEC J-STD-020) |
| Carrier Type | — | Tray |
| Brown-Out Detection | — | Yes, fuse-configurable |