UM82C01 - Capacitance Keyboard Encoder
UM82C01 is a CMOS LSI, which offers interface between microcomputer 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.
The keyboard scan is under complete control of the UM804
UM82C01 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 complete control of the user's compute
