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DTMF/Pulse switchable dialer
31/32-digit LNB (last number buffer) memory (tone/pulse mode)
31/32-digit mercury memory (tone/pulse mode)
15/16-digit
脳
3 one-touch direct repertory memory (tone/pulse mode)
15/16-digit
脳
20 direct or indirect repertory memory (tone/pulse mode)
Uses 9
脳
5 keyboard
Flash time: 98 mS, 305 mS, or 600 mS (selectable by keypad option)
Pause time: 3.6 sec.
Pause and P鈫扵 (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 22, 24, or 28-pin plastic DIP
The different dialers in the W91580 series are shown in the following table:
TYPE NO.
W91580
W91580A
W91580B
W91580C
PULSE
(ppS)
10
10
10/20
10/20
MEMORY
20
20
24
24
MERCURY
MEMORY
-
-
Yes
Save
HOLD
-
-
Yes
Yes
HANDFREE
-
Yes
Yes
Yes
PACKAGE
22
24
28
28
-1-
Publication Release Date: Auguest 1995
Revision A3