ATSAML21J17B-AUT vs ATSAML21J18B-AUT Comparison
Detailed side-by-side comparison of ATSAML21J17B-AUT by Microchip Technology and ATSAML21J18B-AUT 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
ATSAML21J17B-AUT - 48MHz ARM Cortex-M0+ MCU 128KB | Microchip
ATSAML21J17B-AUT ✓ ActiveMicrochip Technology
ATSAML21J18B-AUT - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAML21J18B-AUT ✓ ActiveSpecification Comparison
| Parameter | ATSAML21J17B-AUT | ATSAML21J18B-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.98 | $4.55 |
| Core Architecture | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Maximum Clock Speed | 48 MHz | — |
| CoreMark Performance | 2.46 CoreMark/MHz | — |
| Flash Memory | 128 KB (128K x 8) | — |
| SRAM | 16 KB | 32 KB (up to 40 KB reported by some sources) |
| Supply Voltage Range | 1.62 V to 3.6 V | — |
| Active Current | < 35 uA/MHz | Under 35 uA/MHz |
| Sleep Mode Current | 200 nA (typical, per family doc) | — |
| Operating Temperature Range | -40 C to +85 C | — |
| Package | 64-TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) |
| Pin Count | 64 | — |
| ADC | 12-bit, 1 Msps | 12-bit |
| DAC | 10-bit | 10-bit |
| SERCOM Interfaces | Up to 6 (UART/SPI/I2C configurable) | — |
| USB Interface | USB 2.0 Full-Speed Device | — |
| LCD Controller | Up to 8x32 segments (hardware segmented) | — |
| Capacitive Touch (PTC) | Yes | — |
| Functional Safety (FuSa) | Yes | — |
| Mounting Type | Surface Mount | Surface Mount (Tape & Reel, AUT suffix) |
| RoHS Status | Compliant | Compliant |
| Series | — | SAM L21J, Functional Safety (FuSa) |
| Maximum CPU Frequency | — | 48 MHz |
| Program Flash | — | 256 KB (256K x 8) |
| Supply Voltage (Vcc/Vdd) | — | 1.62 V to 3.63 V |
| Operating Temperature | — | -40 C to +85 C (industrial) |
| GPIO Count | — | 51 (per SAM L21J datasheet) |
| USB | — | USB 2.0 Full-Speed Device |
| Serial Interfaces | — | Multiple SERCOM (configurable as UART/SPI/I2C) |
| Touch Peripheral (PTC) | — | Yes (Peripheral Touch Controller) |
| Sleep Current | — | 200 nA |
| Functional Safety | — | IEC 60730 Class B (FuSa variant) |
| Carrier Type | — | Tape & Reel (AUT suffix) |