Silan
Semiconductors
SC91310 Series
TONE / PULSE DIALER WITH
REDIAL FUNCTION
DESCRIPTION
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
DIP-18
*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
ORDERING INFORMATION (The different dialers in the SC91310 series are shown in the following table)
Type No.
Pulse (pps)
Fla sh(ms)
Fla sh pa use (ms)
Pa use (s)
SC91312/A
10/20
600/300
600/300
2.0
SC91314/A
SC91316
10/20
10/20
73/100
600
140/100
600
3.6
3.6
PIN CONFIGURATIONS
C1
R4
R3
1
2
3
4
5
6
7
8
9
18
17
C2
C3
C4
16 R2
15 R1
B/M
VDD
14
13
12
SC91310
VSS
MODE
DTMF
XT
11 DP
XT
10 HKS
T/P MUTE
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1
2002.12.03
1
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