IL91210E Datasheet, PDF (2/11 Pages) Integral Corp. – Tone/Pulse Dialer High-Performance Silicon-Gate CMOS

LOGIC DIAGRAM
IL91210E
PIN 11 = GND
PIN 10 = V_CC
Keyboard Assignments*
1
2
3
F1
R1
4
5
6
F2
R2
7
8
9
P
R3
*/T
0
#
RD
R4
C1
C2
C3
Internal Pull
Low
*Notes:
1. */T - At Pulse mode this key works as Pulse -> DTMF key (T key), at DTMF mode the key works as *key.
*/T key will occupy one memory digit in either mode.
2. F1 - Flash key. The break time is 96 ms.
3. F2 - Flash key for break time 640 ms.
4. P -- Pause key (2.2 seconds).
5. RD - One key redial key.
6. # - At pulse mode this key input is neglected, at DTMF mode this key works as # key.