1) Keypad matrix interface 1 Key input is output as 16-bit serial data. 2 Internal chattering prevention circuit built into the key input circuit. 2) LED interface 1 LED.

Telephones and cordless telephones FFeatures 1) Keypad matrix interface 1 Key input is output as 16-bit serial data. 2 .

280 Communication ICs BU8310AK / BU8311KS / BU8313K FInput / output circuits 281 Communication ICs BU8310AK / BU8311KS / BU8313K FElectrical characteristics DC characteristics (unless otherwise noted,Ta = 25_C, VDD = 3 X 5V) AC characterist.

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