GENERAL DESCRIPTION
   IC89C54, IC89C58, IC89C64 are members of ICSI embedded microcontroller family. The IC89C54/58/64 uses the same powerful instruction set, has the same architecture, and is pin-to-pin compatible with standard 80C52 controller devices. IC89C54/58/64 are just changed internal Flash size, other features are same as standard IC89C52.

FEATURES
• 80C52 based architecture
• 16K/32K/64K Byte Flash Memory with fastpulse programming algorithm
• 256 x 8 RAM
• Three 16-bit Timer/Counters
• Full duplex serial channel
• Boolean processor
• Four 8-bit I/O ports, 32 I/O lines
• Memory addressing capability
   – 64K Program Memory and 64K Data Memory
• Program memory lock
   – Lock bits (3)
• Power save modes:
   – Idle and power-down
• Eight interrupt sources
• Most instructions execute in 0.3 µs
• CMOS and TTL compatible
• Maximum speed: 40 MHz @ Vcc = 5V
• Packages available:
   – 40-pin DIP
   – 44-pin PLCC
   – 44-pin PQFP