ATSAMD21J18A-CU vs ATSAMD20J18A-CU Comparison
Detailed side-by-side comparison of ATSAMD21J18A-CU by Microchip Technology and ATSAMD20J18A-CU 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
ATSAMD21J18A-CU - 256KB Flash 48MHz Cortex-M0+ MCU | Microchip
ATSAMD21J18A-CU ✓ ActiveMicrochip Technology
ATSAMD20J18A-CU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD20J18A-CU ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21J18A-CU | ATSAMD20J18A-CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.52 | $3.20 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Maximum CPU Frequency | 48 MHz | 48 MHz |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB | 256 KB |
| SRAM | 32 KB | 32 KB |
| Operating Voltage | 1.62 V to 3.6 V | — |
| Package | 64-ball UFBGA (CU), 5x5 mm | 64-ball UFBGA, 5x5 mm |
| SERCOM Channels | 6 (configurable as UART/SPI/I2C) | — |
| USB | USB 2.0 Full-Speed Device with on-chip PHY | Full-Speed USB 2.0 Device |
| ADC | 12-bit, up to 1 MSPS, up to 12 analog inputs | 12-bit, up to 20 channels |
| DAC | 10-bit, 1 channel | 10-bit |
| Timers/Counters | Up to 8 TC channels (24-bit), 3 TCC channels (16-bit) | — |
| I/O Pins | Up to 52 GPIO (depending on package) | — |
| Operating Temperature | -40C to +85C (Industrial / GREEN) | -40C to +85C (industrial) |
| On-chip Oscillator | 48 MHz DFLL48M with PLL | — |
| Mounting Type | Surface Mount (BGA) | Surface Mount |
| RoHS Status | Compliant (GREEN) | Compliant |
| MSL Level | 3 (per JEDEC J-STD-020) | — |
| Operating Voltage Range | — | 1.62 V to 3.63 V |
| Touch Controller (PTC) | — | 256 channels |
| Serial Communication | — | SERCOM x6 (UART/SPI/I2C) |
| Timers | — | 16-bit TC x6 |
| CoreMark Score | — | 2.46 CoreMark/MHz |