Maxim Integrated DS80C320-QNG+, 8bit 80C32 Microcontroller, DS80C, 25MHz, 64 kB, 44-Pin PLCC

80C32-Compatible
8051 Pin and Instruction Set Compatible
Four 8-Bit I/O Ports
Three 16-Bit Timer/Counters
256 Bytes Scratchpad RAM
Addresses 64kB ROM and 64kB RAM
High-Speed Architecture:
4 Clocks/Machine Cycle (8032 = 12)
DC to 33MHz (DS80C320)
DC to 18MHz (DS80C323)
Single-Cycle Instruction in 121ns
Uses Less Power for Equivalent Work
Dual Data Pointer
Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals
High-Integration Controller Includes:
Power-Fail Reset
Programmable Watchdog Timer
Early Warning Power-Fail Interrupt
Two Full-Duplex Hardware Serial Ports
13 Total Interrupt Sources with Six External
Available in 40-Pin DIP, 44-Pin PLCC, and 44-Pin TQFP