HT6542B Overview
The HT6542B is a keyboard controller developed by Holtek with a 4-bit microprocessor. It is pin-to-pin patible with Intel 8042 keyboard controller used in IBM PC’s. PC manufacturers need not modify any printed wiring layout when using the HT6542B in lieu of the Intel 8042 based keyboard controller.
HT6542B Key Features
- High reliability MOS technology 8042-type host interface 6MHz-12MHz operating frequency municates with keyboard directly
- O O Circuit ground Host-reset control signal output Gate A20 control signal output
