W91310 SERIES
TONE/PULSE DIALER WITH
REDIAL FUNCTION
GENERAL DESCRIPTION
The W91310 series are monolithic ICs that provide the necessary signals for either pulse or tone
dialing. The W91310 series feature a redial memory.
FEATURES
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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 4
×
4 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: 100 mS
Minimum intertone pause: 100 mS
On-chip power-on reset
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 18-pin plastic DIP
The different dialers in the W91310 series are shown in the following table:
TYPE NO.
W91312/A
W91314/A
W91316
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
-1-
Publication Release Date: January 1995
Revision A3
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