W91340N SERIES
10-MEMORY TONE/PULSE DIALER WITH
HANDFREE AND HOLD FUNCTIONS
GENERAL DESCRIPTION
The W91340N series are tone/pluse switchable telephone dialers with ten memories, hold function,
and a handfree dialing control circuit. Fabricated using CMOS technology, the W91340N series offer good
performance in low-voltage and low-power applications.
FEATURES
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DTMF/pulse switchable dialer
32-digit redial memory
Ten by 16-digit two-touch direct repertory memory
Cascaded dialing allowed, with unlimited dialing length
Pulse-to-tone (*/T) keypad for long distance call operation
Uses 5
×
4 keyboard
Easy operation with redial, flash, pause, and */T keypads
Pause, P→T (pulse-to-tone) can be stored as a digit in memory
Dialing rate (10 ppS or 20 ppS) is selectable by bonding option
On-hook debounce time: 150 msec.
Minimum tone output duration: 93 msec. (W91344AN: 87 mS)
Minimum intertone pause: 93 msec. (W91344AN: 87 mS)
Flash break time (73, 100, 300, 600 msec) selectable by keypad; pause time is 1.0 sec.
Make/break ratio (40:60 or 33.3:66.7) selectable by MODE pin
On-chip power-on reset
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 18 or 20-pin plastic DIP
The different dialers in the W91340N series are shown in the following table:
TYPE NO.
W91340N
W91342N
W91340AN
W91342AN
W91344AN
REPLACEMENT
TYPE NO.
W91340
W91341
W91342
W91340A
W91341A
W91342A
New type
20
10
600/300/73/100
600/300/73/100
Pin
Pin
Yes
Yes
20
20
20
10
600/300/73/100
600/300/73/100
Pin
Pin
-
Yes
18
20
PULSE
(ppS)
10
FLASH
(mS)
600/300/73/100
M/B
Pin
HANDFREE
DIALING
-
PACKAGE
(PINS)
18
Note: The W91344AN is designed specifically for use in France. The pause time is not added in pulse-to-tone mode.
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Publication Release Date: May 1997
Revision A2
WINBOND [ WINBOND ]
