DESCRIPTION
The Philips 80C32/87C52 is a high-performance microcontroller fabricated with Philips high-density CMOS technology. The Philips CMOS technology combines the high speed and density characteristics of HMOS with the low power attributes of CMOS. Philips epitaxial substrate minimizes latch-up sensitivity.
The 87C52 contains an 8k × 8 EPROM and the 80C32 is ROMless. Both contain a 256 × 8 RAM, 32 I/O lines, three 16-bit counter/timers, a six-source, two-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and on-chip oscillator and clock circuits.

FEATURES
• 80C51 based architecture
• 8032 compatible
   – 8k × 8 EPROM (87C52)
   – ROMless (80C32)
   – 256 × 8 RAM
   – Three 16-bit counter/timers
   – Full duplex serial channel
   – Boolean processor
• Memory addressing capability
   – 64k ROM and 64k RAM
• Power control modes:
   – Idle mode
   – Power-down mode
• CMOS and TTL compatible
• Three speed ranges:
   – 3.5 to 16MHz
   – 3.5 to 24MHz
   – 3.5 to 33MHz
• Five package styles
• Extended temperature ranges
• OTP package available