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TECHNICAL DATA
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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
ORDERING INFORMATION IL91214A/BN Plastic IL91214A/BD SOIC TA = -20° to 70° C for all packages
R1 KEYBOARD LOGIC R4 C1 C3 REDIAL MEMORY 32 DIGITS OUTPUT LOGIC
DP KT XMIT MUTE MODE OUT
VDD DTMF GENERATOR TONE MODE IN HK OSCI OSCO
INPUT LOGIC
CONTROL LOGIC
OSC.
Fig. 1. Block diagram.
IL91214 A, IL91214B
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IL91214A Datasheet
