UM82C01 Overview
UM82C01 is a CMOS LSI, which offers interface between microputer and capacitive keyboard matrix. 40 pin UM82C01-1 is capable of scanning up to 128 lowcost capacitive keys. 28 pin UM82C01-2 serve keyboard applications with less than 88 keys.
UM82C01 Key Features
- 16x8 matrix, can build up to 128 key capacitance keyboard
- Single chip with 16 scan drive outputs and 8 sense inputs
- Two types of package. 28 pin for 88 key KB and 40 pin for 128 key KB
- Keyboard scanning and encoding under plete control of the user's puter, especially UM8048 microputer
- Single 5V supply
- High-speed CMOS technology
- Serve as easy interface to UM8048
- New CMOS sense technology, CMOS analog sense
- Byte wide sense, higher performance than serial sense
- Wide UM8048 frequency range, 1M to 11 MHz UM8048