W91580 Datasheet, PDF (1/19 Pages) Winbond – 24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS

W91580 SERIES
24-MEMORY TONE/PULSE SWITCHABLE DIALER
WITH HANDFREE AND HOLD FUNCTIONS
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 × 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
• 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 × 3 one-touch direct repertory memory (tone/pulse mode)
• 15/16-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 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:
TYPE NO.
PULSE
(ppS)
MEMORY MERCURY HOLD
MEMORY
HANDFREE
W91580
10
20
-
-
-
W91580A
10
20
-
-
Yes
W91580B
10/20
24
Yes
Yes
Yes
W91580C
10/20
24
Save
Yes
Yes
PACKAGE
22
24
28
28
Publication Release Date: Auguest 1995
-1-
Revision A3