ATSAML21J18B-AUT vs ATSAML21J18A-MUT Comparison
Detailed side-by-side comparison of ATSAML21J18B-AUT by Microchip Technology and ATSAML21J18A-MUT 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
ATSAML21J18A-MUT - 48MHz Cortex-M0+ MCU, 256KB Flash | Microchip
ATSAML21J18A-MUT ✓ ActiveSpecification Comparison
| Parameter | ATSAML21J18B-AUT | ATSAML21J18A-MUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.55 | $3.74 |
| Core Architecture | ARM Cortex-M0+ (32-bit) | ARMv6-M |
| 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) | 32 KB |
| Supply Voltage (Vcc/Vdd) | 1.62 V to 3.63 V | — |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C |
| Package | 64-pin TQFP (10x10 mm) | 64-QFN (9x9 mm) with exposed pad |
| Mounting Type | Surface Mount (Tape & Reel, AUT suffix) | Surface Mount |
| GPIO Count | 51 (per SAM L21J datasheet) | — |
| USB | USB 2.0 Full-Speed Device | USB 2.0 Full-Speed device, on-chip transceiver |
| Serial Interfaces | Multiple SERCOM (configurable as UART/SPI/I2C) | — |
| ADC | 12-bit | 12-bit, up to 1 MSPS |
| DAC | 10-bit | 10-bit, 350 kSPS |
| Touch Peripheral (PTC) | Yes (Peripheral Touch Controller) | — |
| Active Current | Under 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) | — |
| Core | — | ARM Cortex-M0+ |
| Maximum CPU Clock | — | 48 MHz |
| Flash Memory | — | 256 KB |
| Supply Voltage Range | — | 1.62 V to 3.63 V |
| SERCOM Channels | — | 6 (configurable as USART, I2C, SPI) |
| Timers | — | 6 (TC, TCC) |
| Touch Peripheral | — | PTC (Peripheral Touch Controller), up to 256 channels |
| I/O Pins | — | Up to 51 |
| MSL Level | — | MSL3 |
| AEC-Q100 | — | Not qualified |
| Lead-Free / Halogen-Free | — | Lead-free; halogen-free status per datasheet |