W91590 SERIES
24-MEMORY TONE/PULSE SWITCHABLE DIALER
WITH HANDFREE, HOLD AND LOCK FUNCTIONS
GENERAL DESCRIPTION
The W91590 series dialers Si-gate CMOS IC tone/pulse switchable dialers with a 24-channel
automatic dialing memory, including a 16-digit
×
3 emergency dialing memory, a 16-digit
×
20
channel repertory memory that provides one-touch and three-touch dialing, and a 32-digit mercury
memory. These dialers also provide flash, clear, hold, and one-key redial functions.
FEATURES
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DTMF/Pulse switchable dialer
32-digit LNB (last number buffer) memory (both tone and pulse mode)
32-digit mercury memory (tone/pulse mode)
16-digit
×
3 one-touch direct repertory memory (tone/pulse mode)
16-digit
×
20 direct or indirect repertory memory (tone/pulse mode)
Uses 9
×
5 keyboard
Flash time: 98 mS, 305 mS, or 600 mS (selectable by keypad option)
Pause time: 3.6 sec.
Pause P→T (pulse-to-tone) can be stored as a digit in memory
Minimum tone output duration: 93 mS
Minimum intertone pause: 93 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 W91590 series are shown in the following table:
TYPE NO.
W91590
W91590L
W91590A
W91590AL
W91590B
W91590BL
W91590C
W91590CL
PULSE MEMORY
(ppS)
10
10
10
10
10/20
10/20
10/20
10/20
20
20
20
20
24
24
24
24
MERCURY
MEMORY
-
-
-
-
Yes
Yes
Save Memory
Save Memory
HOLD HANDFREE
-
-
-
-
Yes
Yes
Yes
Yes
-
-
Yes
Yes
Yes
Yes
Yes
Yes
LOCK
PACKAGE
FUNCTION
-
Yes
-
Yes
-
Yes
-
Yes
22
22
24
24
28
28
28
28
-1-
Publication Release Date: July 1995
Revision A3
WINBOND [ WINBOND ]
