P87C51RD2

INTEGRATED CIRCUITS P87C51RA2/RB2/RC2/RD2 80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP, 512B/512B/512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz) Product data Supersedes data of 2002 Oct 28 2003 Jan 24 Philips Semiconductors Philips Semiconductors 80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP with 512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz) Product data P87C51RA2/RB2/RC2/RD2 DESCRIPTION The devices are Single-Chip 8-Bit Microcontrollers manufactured in an advanced CMOS process and are derivatives of the 80C51 microcontroller family. The instruction set is 100% compatible with the 80C51 instruction set. The devices support 6-clock/12-clock mode selection by programming an OTP bit (OX2) using parallel programming. In addition, an SFR bit (X2) in the clock control register (CKCON) also selects between 6-clock/12-clock mode. The devices also have four 8-bit I/O ports, three 16-bit timer/event counters, a multi-source, four-priority-level, nested interrupt structure, an enhanced UART and on-chip oscillator and timing circuits. The added features of the P87C51RA2/RB2/RC2/RD2 make it a powerful microcontroller for applications that require pulse width modulation, high-speed I/O and up/down counting capabilities such as motor control. FEATURES 80C51 Central Processing Unit – 8 kbytes OTP (87C51RA2) – 16 kbytes OTP (87C51RB2) – 32 kbytes OTP (87C51RC2) – 64 kbytes OTP (87C51RD2) – 512 byte RA...