ATSAMD21J18A-CU vs ATSAMD21J17A-AF Comparison
Detailed side-by-side comparison of ATSAMD21J18A-CU by Microchip Technology and ATSAMD21J17A-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
ATSAMD21J18A-CU - 256KB Flash 48MHz Cortex-M0+ MCU | Microchip
ATSAMD21J18A-CU ✓ ActiveMicrochip Technology
ATSAMD21J17A-AF - 48MHz Cortex-M0+ MCU, 128KB Flash, USB | Microchip
ATSAMD21J17A-AF ✓ ActiveSpecification Comparison
| Parameter | ATSAMD21J18A-CU | ATSAMD21J17A-AF |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | ARM Cortex-M0+ (32-bit) | — |
| Maximum CPU Frequency | 48 MHz | — |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB | 128 KB (with 4 KB RWW) |
| SRAM | 32 KB | 16 KB |
| Operating Voltage | 1.62 V to 3.6 V | — |
| Package | 64-ball UFBGA (CU), 5x5 mm | 64-pin TQFP (10x10 mm), 0.5 mm pitch |
| SERCOM Channels | 6 (configurable as UART/SPI/I2C) | — |
| USB | USB 2.0 Full-Speed Device with on-chip PHY | — |
| ADC | 12-bit, up to 1 MSPS, up to 12 analog inputs | 12-bit, up to 20 channels, 350 ksps |
| DAC | 10-bit, 1 channel | 10-bit, 350 ksps |
| Timers/Counters | Up to 8 TC channels (24-bit), 3 TCC channels (16-bit) | 8 (TC) plus RTC |
| I/O Pins | Up to 52 GPIO (depending on package) | — |
| Operating Temperature | -40C to +85C (Industrial / GREEN) | — |
| On-chip Oscillator | 48 MHz DFLL48M with PLL | — |
| Mounting Type | Surface Mount (BGA) | Surface Mount (Gull-wing) |
| RoHS Status | Compliant (GREEN) | Compliant (Pb-free, GREEN per supplier) |
| MSL Level | 3 (per JEDEC J-STD-020) | 3 (168 hours) |
| Core Architecture | — | ARM Cortex-M0+ (32-bit) |
| Maximum Clock Frequency | — | 48 MHz |
| CoreMark Score | — | 2.46 CoreMark/MHz (~118 CoreMark) |
| Operating Voltage Range | — | 1.62 V to 3.63 V |
| Operating Temperature Range | — | -40C to +125C (industrial) |
| USB Interface | — | USB 2.0 Full-Speed Device with on-chip transceiver |
| SERCOM Modules | — | 6 (each configurable as I2C/SPI/UART/USART) |
| DMA Channels | — | 12 |