ATSAML21J18B-MUT vs ATSAML21J18A-MUT Comparison
Detailed side-by-side comparison of ATSAML21J18B-MUT 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-MUT - SAM L21 Cortex-M0+ 256KB Flash 48MHz QFN-64 MCU | Microchip
ATSAML21J18B-MUT ✓ ActiveMicrochip Technology
ATSAML21J18A-MUT - 48MHz Cortex-M0+ MCU, 256KB Flash | Microchip
ATSAML21J18A-MUT ✓ ActiveSpecification Comparison
| Parameter | ATSAML21J18B-MUT | ATSAML21J18A-MUT |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.68 | $3.74 |
| Core Processor | ARM Cortex-M0+ | — |
| Core Architecture | 32-bit RISC | ARMv6-M |
| Maximum CPU Frequency | 48 MHz | — |
| CoreMark Score | 2.46 CoreMark/MHz | — |
| Program Memory (Flash) | 256 KB (256K x 8) | — |
| SRAM | 32 KB | 32 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| I/O Pins | 51 | Up to 51 |
| ADC | 12-bit, up to 20 channels | 12-bit, up to 1 MSPS |
| DAC | 12-bit, 1 channel | 10-bit, 350 kSPS |
| Communication Interfaces | SERCOM (UART/SPI/I2C), I2S, USB 2.0 FS | — |
| Timers/Counters | TC, TCC (16-bit) | — |
| Active Mode Current | <35 uA/MHz | — |
| Sleep Mode Current | 200 nA | — |
| Package Type | QFN-64 (9x9 mm) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) | -40 C to +85 C |
| Functional Safety | IEC 60730 class B (FuSa) | — |
| RoHS Status | Compliant | Compliant |
| MSL Level | 3 (168 hours) | MSL3 |
| Core | — | ARM Cortex-M0+ |
| Maximum CPU Clock | — | 48 MHz |
| Flash Memory | — | 256 KB |
| Supply Voltage Range | — | 1.62 V to 3.63 V |
| Package | — | 64-QFN (9x9 mm) with exposed pad |
| USB | — | USB 2.0 Full-Speed device, on-chip transceiver |
| SERCOM Channels | — | 6 (configurable as USART, I2C, SPI) |
| Timers | — | 6 (TC, TCC) |
| Touch Peripheral | — | PTC (Peripheral Touch Controller), up to 256 channels |
| AEC-Q100 | — | Not qualified |
| Lead-Free / Halogen-Free | — | Lead-free; halogen-free status per datasheet |