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DTMF/pulse switchable dialer
Two by 32 digit redial and save memory
Ten by 16 digit two-touch direct memory
Redial memory cascadable with normal dialing; dialing length is unlimited, but if length
oversteps 32 digits the redial function is inhibited
Pulse-to-tone (*/T) keypad for long distance call operation
Uses 5
脳
5 keyboard
Easy operation with redial, flash, pause and */T keypads
Flash, pause, P鈫扵 (Pulse-to-tone) can be stored as a digit in memory
Dialing rate (10, 20 ppS ) selected by bonding option
On-hook debounce time: 150 msec.
Minimum tone output duration: 93 msec.
Minimum intertone pause: 93 msec.
Flash break time (73, 100, 300, 600 msec.) selectable by keypad, and the pause time is 1 sec.
On-chip power-on reset
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 18-pin plastic DIP
The different dialers in the W91440N series are shown in the following table:
TYPE NO.
W91442N
REPLACEMENT
TYPE NO.
W91442
W91443
W91444
W91446
W91447
W91444G
W91445G
W91443N
W91443
20
600/300/73/100
3.6
Pin
PULSE
(ppS)
10
FLASH
(mS)
600/300/73/100
PAUSE
(S)
3.6
M/B
Pin
-1-
Publication Release Date: May 1997
Revision A3