DESCRIPTION
The ETL9444/L9445 and ETL9344/L9345 SingleChip N-Channel Microcontrollers are fully compatible with the COPS family, fabricated using N-channel, silicon gate XMOS technology. They are complete microcomputers containing all system timing, internal logic, ROM, RAM and I/O necessary to implement dedicated control functions in a variety of applications.

■ LOW COST
■ POWERFUL INSTRUCTION SET
■ 2k x 8 ROM, 128 x 4 RAM
■ 23 I/O LINES (ETL9444)
■ TRUE VECTORED INTERRUPT, PLUS RESTART
■ THREE-LEVEL SUBROUTINE STACK
■ 16µs INSTRUCTION TIME
■ SINGLE SUPPLY OPERATION (4.5-6.3V)
■ LOW CURRENT DRAIN (13mA max.)
■ INTERNAL TIME-BASE COUNTER FORREALTIME PROCESSING
■ INTERNAL BINARY COUNTER REGISTER WITH MICROWIRE SERIAL I/O CAPABILITY
■ GENERAL PURPOSE AND TRI-STATE OUTPUTS
■ LSTTL/CMOS COMPATIBLE IN AND OUT
■ DIRECT DRIVEOF LEDDIGIT AND SEGMENT LINES
■ SOFTWARE/HARDWARE COMPATIBLE WITH OTHER MEMBERS OF ET9400 FAMILY
■ EXTENDED TEMPERATURE RANGE DEVICES ETL9344/L9345 (– 40°C to + 85°C)
■ WIDER SUPPLY RANGE (4.5 – 9.5V) OPTIONALLY AVAILABLE
■ SOIC 24/28 AND PLCC 28 PACKAGES AVAILABLE