P89V51RB2BBC

The NXP Semiconductors P89V51RB2BBC is an 8-bit microcontroller featuring the robust 80C51 CPU core. This device offers flexible on-chip flash memory options of 16, 32, or 64 kB, coupled with 1 kB of data RAM. It supports a wide operating voltage range of 5V and can achieve clock frequencies from 0 MHz up to 40 MHz.

A key feature is the X2 mode option, allowing for twice the throughput at the same clock frequency or reduced clock speed for lower EMI. The flash memory supports both parallel programming and In-System Programming (ISP) for in-application updates, as well as In-Application Programming (IAP) for reconfiguring memory while the application is running.

This microcontroller includes standard peripherals such as SPI and an enhanced UART, along with a Programmable Counter Array (PCA) that provides PWM and capture/compare functions. It features four 8-bit I/O ports, three 16-bit timers/counters, a programmable watchdog timer, and eight interrupt sources with four priority levels. Low power modes, including power-down and idle modes, are also supported.

The P89V51RB2BBC is available in a TQFP44 package, designed for surface mount applications. It offers TTL- and CMOS-compatible logic levels and includes brownout detection.