W91580A Winbond, W91580A Datasheet
W91580A
Manufacturer Part Number
W91580A
Description
24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS
Manufacturer
Winbond
Datasheet
1.W91580A.pdf
(19 pages)
GENERAL DESCRIPTION
The W91580 series dialers are Si-gate CMOS IC tone/pulse switchable dialers containing a 24-
channel automatic dialing memory, including 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
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
15/16-digit
Uses 9
Flash time: 98 mS, 305 mS, or 600 mS (selectable by keypad option)
Pause time: 3.6 sec.
Pause and 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 22, 24, or 28-pin plastic DIP
The different dialers in the W91580 series are shown in the following table:
W91580
W91580A
W91580B
W91580C
TYPE NO.
24-MEMORY TONE/PULSE SWITCHABLE DIALER
5 keyboard
3 one-touch direct repertory memory (tone/pulse mode)
20 direct or indirect repertory memory (tone/pulse mode)
WITH HANDFREE AND HOLD FUNCTIONS
PULSE
(ppS)
10/20
10/20
10
10
MEMORY
20
20
24
24
MERCURY
MEMORY
Save
- 1 -
Yes
-
-
3 emergency dialing memory, a 16-digit
HOLD
Yes
Yes
-
-
Publication Release Date: Auguest 1995
W91580 SERIES
HANDFREE
Yes
Yes
Yes
-
PACKAGE
Revision A3
22
24
28
28
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