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
ORDERING INFORMATION
IL91214A/BN Plastic
IL91214A/BD SOIC
T
A
= -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
V
DD
DTMF
GENERATOR
TONE
MODE IN
HK
OSCI
OSCO
INPUT
LOGIC
CONTROL
LOGIC
OSC.
Fig. 1. Block diagram.
INTEGRAL [ INTEGRAL CORP. ]
