ATSAML21J18B-AUT vs ATSAML22J18A-AUT Comparison
Detailed side-by-side comparison of ATSAML21J18B-AUT by Microchip Technology and ATSAML22J18A-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
ATSAML22J18A-AUT - 32MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAML22J18A-AUT ✓ ActiveSpecification Comparison
| Parameter | ATSAML21J18B-AUT | ATSAML22J18A-AUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.55 | $3.86 |
| Core Architecture | 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) | 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 (AUT grade) |
| 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 | — |
| DAC | 10-bit | — |
| 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 Processor | — | ARM Cortex-M0+ |
| Core Size | — | 32-Bit Single-Core |
| Maximum CPU Speed | — | 32 MHz |
| Program Memory (Flash) | — | 256 KB (256K x 8) |
| Supply Voltage (VDD) | — | 1.6 V to 3.6 V |
| Active Current (CoreMark) | — | 39 µA/MHz |
| Backup Mode Current (RTC) | — | 490 nA |
| Connectivity | — | I²C, SPI, UART, USB 2.0 Full-Speed Device |
| Peripherals | — | Segment LCD, 12-bit ADC, 10-bit DAC, PTC (touch), AES-256, RTC |
| Number of I/O Pins | — | [DATA_NEEDED: GPIO count for TQFP-64 variant] |
| MSL Level | — | 3 (168 hours) |