SAMD51J19A

SAMD51J19A is a member of Microchip Technology’s SAM D51 family of 32‑bit microcontrollers designed for higher‑performance embedded applications. It is built around an ARM Cortex-M4F core and can run at speeds up to around 120 MHz, providing a floating‑point unit and DSP instructions to handle more demanding signal processing tasks than the earlier SAM D02/D21 series.

The device family is characterized by on‑chip memory and a range of package options, with the exact flash and SRAM sizes varying by variant and package. The J19A designation identifies a specific device variant within the line, paired with a configuration suitable for mid‑to‑high density applications. In general, these MCUs are designed to balance performance, memory density, and peripheral richness for flexible product design.

Peripherals are a central strength of the SAM D51J19A. It includes USB 2.0 device support, CAN, and multiple SERCOM modules that can be configured for UART, SPI, or I2C. It provides two 12‑bit DACs, several 12‑bit ADC channels, a direct memory access controller (DMAC), a CRC engine, and a Peripheral Touch Controller (PTC) for capacitive sensing. Other features commonly available include timers, a hardware RNG, and robust clocking with internal oscillators, PLLs, and external crystal support.

Power and safety features encompass multiple sleep modes, wake‑up options, and brown‑out detection to optimize energy use in battery‑powered designs. Debug and development support are offered through standard SWD/JTAG interfaces. The SAM D51J19A is supported by Microchip’s development tools and software ecosystems, and is suitable for a range of applications in consumer electronics, industrial control, and automation.