W91350N Datasheet, PDF (1/16 Pages) Winbond – 13-MEMORY TONE/PULSE DIALER WITH HANDFREE AND HOLD FUNCTION

W91350N SERIES
13-MEMORY TONE/PULSE DIALER WITH
HANDFREE AND HOLD FUNCTIONS
GENERAL DESCRIPTION
The W91350N series are tone/pluse switchable telephone dialers with thirteen memories, hold
function, and a handfree dialing control circuit. Fabricated using CMOS technology, the W91350N series
offer good performance in low-voltage and low-power applications.
FEATURES
• DTMF/pulse switchable dialer
• Two by 32-digit redial memory and save memory
• Three by 16-digit one-touch direct repertory memory
• Ten by 16-digit two-touch direct repertory memory
• Cascaded dialing allowed, with unlimited dialing length
• Pulse-to-tone (*/T) keypad for long distance call operation
• Uses 5 × 5 keyboard
• Easy operation with redial, flash, pause, and */T keypads
• Pause, P→T (pulse-to-tone) can be stored as a digit in memory
• Dialing rate (10 ppS or 20 ppS) is selectable by bonding option
• On-hook debounce time: 150 msec.
• Minimum tone output duration: 93 msec. (W91354AN: 87 mS)
• Minimum intertone pause: 93 msec. (W91354AN: 87 mS)
• Flash break time (73, 100, 300, 600 msec) selectable by keypad; pause time is 1.0 sec.
• Make/break ratio (40:60 or 33.3:66.7) selectable by MODE pin
• On-chip power-on reset
• Uses 3.579545 MHz crystal or ceramic resonator
• Packaged in 18 or 20-pin plastic DIP
• ^{The different dialers in the W91350N series are shown in the following table:}
TYPE NO.
REPLACEMENT PULSE
TYPE NO.
(ppS)
FLASH
(mS)
M/B HANDFREE PACKAGE
DIALING
(PINS)
W91350N
W91350
10
600/300/73/100 Pin
-
18
W91351
W91352N
W91352
20
600/300/73/100 Pin
-
18
W91350AN
W91350A
10
600/300/73/100 Pin
Yes
20
W91351A
W91352AN
W91352A
20
600/300/73/100 Pin
Yes
20
W91354AN
New type
10
600/300/73/100 Pin
Yes
20
Note: The W91354AN is for use in France only. The pause time is not added in pulse-to-tone function mode.
Publication Release Date: May 1997
-1-
Revision A2