IL91214 Datasheet, PDF (1/11 Pages) Integral Corp. – Tone/Pulse Dialer with Flash Function

Tone/Pulse Dialer with Flash Function
TECHNICAL DATA
IL91214A/B
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
T_A = -20° to 70° C for all packages
R1
KEYBOARD
LOGIC
R4
C1
C3
MODE IN
HK
INPUT
LOGIC
REDIAL MEMORY
32 DIGITS
CONTROL
LOGIC
OUTPUT
LOGIC
DP
KT
XMIT MUTE
MODE OUT
DTMF
GENERATOR
OSC.
V_DD
TONE
OSCI
OSCO
Fig. 1. Block diagram.