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. FEATURES
include single supply operation, a variety of output configuration options, with an instruction set, internal architecture and I/O scheme designed to facilitate keyboard input, display output and BCD data manipulation. Standard test procedures and reliable high-density fabrication techniques provide the medium to large volume customers with a customiMay 1989 1/27 ETL9444/9445–ETL9344/9345 zed controller oriented processor at a low end-product cost. Figure 1 : Block Diagram (28-pin version). 2/27 ETL9444/9445–ETL9344/9345 ETL9444/L9445 ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Voltage at any Pin Relative to GND Ambient...
STMicroelectronics
