MSM82C43 Overview
The MSM82C43 is an input/output port expander device based on CMOS technology and designed to operate at low power consumption levels. In systems employing the MSM80C48/49 8 bit single chip microputers, 4 bit data can be expanded by dividing between four I/O lines by executing the MOVDA, Pp, A and ORLDPp, A instructions.
MSM82C43 Key Features
- CMOS technology for low power consumption
- 2.5 to 6 V single power supply (dependent on MSM80C48/49 operating frequency.)
- Fully static operation
- Bidirectional I/O ports
- TTL coimpatible (ports 4 thru 7)
- Functional patiblity with Intel i8243