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TECHNICAL DATA
IL91214A/B Tone/Pulse Dialer with Flash Function
IL91214A and IL91214B are tone/pulse dialers designed for providing standard DTMF or pulse signals. The ICs enable to: - generate standard DTMF or pulse signals of dialing as well as “flash” pulses; - store and redial last number; - generate pause in the transmitted package of dial signals; ICs are designed to be used in telephone sets.
D SUFFIX SOIC
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R1 KEYBOARD LOGIC R4 C1 C3 REDIAL MEMORY 32 DIGITS OUTPUT LOGIC
ORDERING INFORMATION IL91214A/BN Plastic IL91214A/BD SOIC TA = -20° to 70° C for all packages
DP KT XMIT MUTE MODE OUT
VDD
TONE MODE IN HK OSCI OSCO
INPUT LOGIC
CONTROL LOGIC
OSC.
Fig. 1. Block diagram.
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IL91214 Datasheet
