P89CV51RC2
Overview
The P89CV51RB2/RC2/RD2 are three types of 80C51 microcontroller with respectively 16 kB/32 kB/64 kB flash and 1 kB of data RAM. These devices are designed to be drop-in and software-compatible replacements for the popular P89C51RB2/RC2/RD2 devices.
- 1 Principal features I Supports 12-clock (default) or 6-clock mode selection via ISP or parallel programmer I 6-clock/12-clock mode programmable “on-the-fly” by an SFR bit I Peripherals (PCA, timers, UART) may use either 6-clock or 12-clock mode while the CPU is in 6-clock mode I 128-B page erase for efficient use of code memory as non-volatile data storage I 0 MHz to 40 MHz operating frequency in 12× mode, 20 MHz in 6× mode I 16/32/64 kB of on-chip flash user-code memory with ISP and IAP I 1 kB RAM I SPI (Serial Peripheral Interface) and enhanced UART I PCA (Programmable Counter Array) with PWM and capture/compare functions I Three 16-bit timers/counters
- 2 Additional features I Four 8-bit I/O ports I WatchDog Timer (WDT) I 30 ms page erase, 150 ms block erase I PLCC44 and TQFP44 packages I Ten interrupt sources with four priority levels I Second DPTR register I Low EMI mode (ALE inhibit) NXP Semiconductors
