ATSAMD21J15B-MU

Overview

The ATSAMD21J15B-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 32KB of in-system programmable Flash memory and 4KB of SRAM. The device supports a supply voltage range of 1.62V to 3.6V and includes an internal oscillator. Connectivity options include I2C, LINbus, SPI, UART/USART, and USB interfaces. It provides 52 general-purpose I/Os and integrates peripherals such as DMA, PWM, and watchdog timers. The unit is housed in a 64-QFN (9x9) package.

Feature Summary

• Functional Safety (FuSa) certification for automotive applications
• Integrated USB 2.0 Full-Speed Device interface
• Multiple communication peripherals including I2S and LINbus support

Applications

• Automotive infotainment systems
• Body control modules
• Industrial motor control
• Consumer electronics with safety requirements

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pinout and electrical specifications before procurement.

Selection Notes

Select this component when Functional Safety compliance is required alongside USB connectivity. Compare pin counts and memory sizes against other SAM D21 variants to ensure optimal fit for the target application's resource needs.

Part Context

This part belongs to the SAM D21J family, which is optimized for functional safety applications. It shares the same core architecture as other SAM D21 series devices but offers specific memory and peripheral configurations tailored for robust embedded control tasks.

Replacement Considerations

ATSAMD21J15B-MUT