Silan
Semiconductors
TONE / PULSE DIALER WITH
REDIAL FUNCTION
DESCRIPTION
SC91310 Series
The SC91310 series are monolithic ICs that provide the necessary
signals for either pulse or tone dialing. The SC91310 series feature a
redial memory.
FEATURES
*DTMF / Pulse switchable dialer
*32 digits for redial memory
*pulse-to-tone (P→T) keypad for long distance call operation
*Break / Make ratio is selectable by pin option
*Uses 4x4 keyboard
*Easy operation with redial, flash, pause, and P→T keypads
*Flash, pause, P→T (pulse-to tone) can be stored as a digit in
memory
*Minimum tone output duration:100ms
*minimum intertone pause: 100ms
*On-chip power-on reset
*Uses 3.579545 MHz crystal or ceramic resonator
*Packaged in 18-pin plastic DIP
DIP-18
ORDERING INFORMATION
(The different dialers in the SC91310 series are shown in the following table)
Type No.
SC91312/A
SC91314/A
SC91316
Pulse(pps)
10/20
10/20
10/20
Flash(ms)
600/300
73/100
600
Flash pause(ms)
600/300
140/100
600
Pause(s)
2.0
3.6
3.6
PIN CONFIGURATIONS
C1
C2
C3
C4
B/M
V
SS
XT
XT
T/P MUTE
1
2
3
4
5
6
7
8
9
SC91310
18
R4
17
R3
16
R2
15
R1
14
V
DD
13
MODE
12
DTMF
11
DP
10
HKS
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1
2002.12.03
1