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W91321A Datasheet Preview

W91321A Datasheet

TONE/PULSE DIALER

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W91320N SERIES
TONE/PULSE DIALER WITH HANDFREE
LOCK AND HOLD FUNCTIONS
GENERAL DESCRIPTION
The W91320N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse
dialing. The W91320N series provide one-key redial, handfree dialing, hold, redial, and lock
functions.
FEATURES
DTMF/pulse switchable dialer
32-digit redial memory
Pulse-to-tone (*/T) keypad for long distance call operation
Uses 5 × 5 keyboard
Easy operation with redial, flash, pause, and */T keypads
Pause, pulse-to-tone (*/T) can be stored as a digit in memory
0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
Off-hook delay 300 mS in lock mode ( DP will keep low for 300 mS while off hook)
First key-in delay 300 mS output in lock mode
Dialing rate (10, 20 ppS ) selected by bonding option
Minimum tone output duration: 93 msec.
Minimum intertone pause: 93 msec.
Flash break time (73, 100, 300, 600 msec.) selectable by keypad, and the pause time is 1.0 sec.
On-chip power-on reset
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 18, 20, or 22-pin plastic DIP
The different dialers in the W91320N series are shown in the following table:
TYPE NO.
W91320N
W91321N
W91320AN
W91321AN
W91320LN
W91320ALN
REPLACEMENT
TYPE NO.
W91320
W91321
W91320A
W91321A
W91322L
W91322AL
PULSE
(ppS)
10
20
10
20
10
10
FLASH
(mS)
600/100/300/73
600/100/300/73
600/100/300/73
600/100/300/73
600/100/300/73
600/100/300/73
M/B HANDFREE LOCK PACKAGE
DIALING
(PINS)
Pin -
- 18
Pin -
- 18
Pin Yes
- 20
Pin Yes
- 20
Pin - Yes 20
Pin Yes Yes 22
Publication Release Date: May 1997
- 1 - Revision A2




Winbond

W91321A Datasheet Preview

W91321A Datasheet

TONE/PULSE DIALER

No Preview Available !

PIN CONFIGURATIONS
W91320N SERIES
C1
C2
C3
C4
H/P MUTE
VSS
XT
XT
T/P MUTE
1
2
3
4
5
6
7
8
9
18 R4
17 R3
16 R2
15 R1
14 VDD
13 MODE
12 DTMF
11 DP/C5
10 HKS
W91320N/W91321N
C1
C2
C3
C4
H/P MUTE
VSS
XT
XT
T/P MUTE
HFI
1
2
3
4
5
6
7
8
9
10
20 R4
19 R3
18 R2
17 R1
16 VDD
15 MODE
14 DTMF
13 DP/C5
12 HKS
11 HFO
W91320AN/W91321AN
C1
C2
C3
C4
LOCK
H/P MUTE
VSS
XT
XT
T/P MUTE
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
W91320LN
R4
R3
R2
R1
VDD
NC
MODE
DTMF
DP/C5
HKS
C1
C2
C3
C4
LOCK
H/P MUTE
VSS
XT
XT
T/P MUTE
HFI
1 22
2 21
3 20
4 19
5 18
6 17
7 16
8 15
9 14
10 13
11 12
W91320ALN
R4
R3
R2
R1
VDD
NC
MODE
DTMF
DP/C5
HKS
HFO
-2-


Part Number W91321A
Description TONE/PULSE DIALER
Maker Winbond
Total Page 19 Pages
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