P87C52X2 Datasheet | Philips Semiconductors

- INTEGRATED CIRCUITS P80C31X2/32X2 P80C51X2/52X2/54X2/58X2 P87C51X2/52X2/54X2/58X2 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz) Product data Supersedes data of 2002 Sep 12 2003 Jan 24 Philips Semiconductors Philips Semiconductors 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz) Product data P80C3x X2; P80C5x X2; P87C5x X2 DESCRIPTION The Philips microcontrollers described in this data sheet are high-performance static 80C51 designs incorporating Philips’ high-density CMOS technology with operation from 2.7 V to 5.5 V. They support both 6-clock and 12-clock operation. The P8x C31X2/51X2 and P8x C32X2/52X2/54X2/58X2 contain 128 byte RAM and 256 byte RAM respectively, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrupt structure, a serial I/O port for either multi-processor munications, I/O expansion or full duplex UART, and on-chip oscillator and clock circuits. In addition, the devices are low power static designs which offer a wide range of operating frequencies down to zero. Two software selectable modes of power reduction - idle mode and power-down mode - are available. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. Since the design is static, the clock can be stopped without loss of user data. Then the execution can be resumed from the point the clock was stopped. SELECTION TABLE For applications requiring more ROM and RAM, as well as more on-chip peripherals, see the P89C66x and P89C51Rx2 data sheets. Type Memory Timers Serial Interfaces RAM ROM OTP Flash # of Timers PWM PCA WD UART I 2C CAN SPI ADC bits/ch. I/O Pins Interrupts (External) Program Security...