P89V51RC2FA

Product Summary

The P89V51RC2FA is a 80C51 microcontroller with 16/32/64 kB Flash and 1024 bytes of data RAM. A key feature of the P89V51RC2FA is its X2 mode option. The design engineer can choose to run the application with the conventional 80C51 clock rate (12 clocks per machine cycle) or select the X2 mode (6 clocks per machine cycle) to achieve twice the throughput at the same clock frequency. The P89V51RC2FA is also In-Application Programmable (IAP), allowing the Flash program memory to be reconfigured even while the application is running.

Parametrics

Absolute maximum ratings: (1)Tamb(bias), operating bias ambient temperature: -55 to +125 °C; (2)Tstg, storage temperature range: -65 to +150 °C; (3)VEA, voltage on EA pin to VSS: -0.5 to 14 V; (4)Vn, DC voltage on any pin to ground potential:-0.5 to VDD + 0.5 V; (5)Vit transient voltage (<20 ns) on any other pin to VSS:-1.0 to VDD + 1.0 V; (6)IOL(I/O) maximum IOL per I/O pins P1.5, P1.6, P1.7:- 20 mA max; (7)IOL(I/O), maximum IOL per I/O for all other pins: - 15 mA max; (8)Ptot(pack): total power dissipation per package at Tamb = 25 °C: 1.5 W max;through hole lead soldering temperature at 10 seconds:300 °C max; surface mount lead soldering temperature at 3 seconds: - 240 °C max; output short circuit current: 50 mA max.

Features

Features: (1)80C51 Central Processing Unit; (2)5 V Operating voltage from 0 MHz to 40 MHz; (3)16/32/64 kB of on-chip Flash user code memory with ISP (In-system Programming) and IAP (In-ApplicatioProgramming); (4)Supports 12-clock (default) or 6-clock mode selectiovia software or ISP; (5)SPI (Serial Peripheral Interface) and enhanced UART; (6)PCA (Programmable Counter Array) with PWM and Capture/Compare functions; (7)Four 8-bit I/O ports with three high-current Port 1 pins (16 mA each); (8)Three 16-bit timers/counters; (9)Programmable watchdog timer; (10)Eight interrupt sources with four priority levels; (11)Second DPTR register; (12)Low EMI mode (ALE inhibit); (13)TTL- and CMOS-compatible logic levels; (14)Brown-out detection; (15)Low power modes:Power-dowmode with external interrupt wake-up; Idle mode; (16)DIP40, PLCC44 and TQFP44 packages.

Diagrams