UM82C01 Datasheet - UMC

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

UM82C01_UMC.pdf