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