com KEYBOARD and ENCODER 219 W.
Rhapsody, San Antonio, Texas 78216 1 KBD-5 KEYBOARD General Description The KBD-5 keyboard and ASCII encoder utilizes a single MOS integrated circuit to perform the bulk of all necessary operations to generate full 8 bit parallel ASCII output code complete with a parity bit for error detection.
Debounce is internal and automatic and choice between positive or negative keypressed output strobe is provided.
The keyboard can be programmed for upper case characters only, or upper and lower case characters.
The KBD-5 has the features of n key lockout and 2 key rollover to help in reducing typing errors.
Once a key is pressed pressing other keys ...

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