Scan-controlled keyboard

摘要

A keyboard having a matrix arrangement of analog keyswitches arranged along column conductors leading from a driver chip and row conductors leading to a detector chip. The driver chip has a strobe line and multiple address lines adapted to connect to a controller. The column conductors are sequentially pulsed by the driver chip. The detector chip has a strobe line common to that of the driver chip and a multiple line data bus for directing keyboard signals simultaneously from the several row columns.