W91320A Winbond, W91320A Datasheet

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W91320A

Manufacturer Part Number
W91320A
Description
DTMF Transmitter, 3.58MHz, 5V, Standby, CMOS, 20-PDIP
Manufacturer
Winbond
Datasheet

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Part Number:
W91320A
Manufacturer:
REALTEK
Quantity:
13
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
Pulse-to-tone (*/T) keypad for long distance call operation
Uses 5
Minimum intertone pause: 93 msec.
On-chip power-on reset
DTMF/pulse switchable dialer
32-digit redial memory
Easy operation with redial, flash, pause, and */T keypads
Pause, pulse-to-tone (*/T) can be stored as a digit in memory
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.
Flash break time (73, 100, 300, 600 msec.) selectable by keypad, and the pause time is 1.0 sec.
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:
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)
W91320N
W91321N
W91320AN
W91321AN
W91320LN
W91320ALN
TYPE NO.
5 keyboard
REPLACEMENT
W91320
W91321
W91320A
W91321A
W91322L
W91322AL
TYPE NO.
TONE/PULSE DIALER WITH HANDFREE
PULSE
(ppS)
10
20
10
20
10
10
LOCK AND HOLD FUNCTIONS
600/100/300/73
600/100/300/73
600/100/300/73
600/100/300/73
600/100/300/73
600/100/300/73
FLASH
- 1 -
(mS)
M/B
Pin
Pin
Pin
Pin
Pin
Pin
Publication Release Date: May 1997
W91320N SERIES
HANDFREE
DIALING
Yes
Yes
Yes
-
-
-
LOCK
Yes
Yes
-
-
-
-
Revision A2
PACKAGE
(PINS)
18
18
20
20
20
22

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W91320A Summary of contents

Page 1

... Packaged in 18, 20, or 22-pin plastic DIP The different dialers in the W91320N series are shown in the following table: TYPE NO. REPLACEMENT TYPE NO. W91320N W91320 W91321N W91321 W91320AN W91320A W91321AN W91321A W91320LN W91322L W91320ALN W91322AL LOCK AND HOLD FUNCTIONS PULSE FLASH M/B (ppS) (mS) 10 600/100/300/73 Pin 20 600/100/300/73 Pin 10 ...

Page 2

... LOCK 6 H/P MUTE T/P MUTE W91320LN H/P MUTE MODE XT DTMF DP/C5 T/P MUTE 10 HKS HFI W91320AN/W91321AN LOCK V H/P MUTE MODE 14 XT DTMF T/P MUTE DP/C5 11 HKS HFI - 2 - W91320N SERIES MODE DTMF 8 13 DP/ HKS 11 HFO MODE DTMF 9 14 DP/ HKS 12 11 HFO W91320ALN ...

Page 3

PIN DESCRIPTION SYMBOL 18-PIN 20-PIN Column Row & Inputs XT, XT (8, 9, W91320LN T/P 9 MUTE W91320LN MODE 13 W91320LN 10 HKS W91320LN 22-PIN I/O The keyboard inputs may be used ...

Page 4

Pin Description, continued SYMBOL 18-PIN 20-PIN W91320LN 14 (16, 7 W91320LN H/P 5 MUTE W91320LN NC - (W91320LN DTMF 12 W91320LN 22-PIN I N-channel open ...

Page 5

... Pin Description, continued SYMBOL 18-PIN 20-PIN - 10, 11 HFI, HFO (W91320AN/ 321AN) - LOCK W91320LN 22-PIN I/O 11 Handfree control pins. The handfree control state is toggled low pulse on the HFI input pin. The status of the handfree control state is described in the following table: HFI pin is pulled to V resistor ...

Page 6

BLOCK DIAGRAM ROW (R1 to R4, Vx) KEYBOARD INTERFACE COLUMN (C1 to C4) D/A DTMF CONVERTER FUNCTIONAL DESCRIPTION Keyboard Operation R/P1, R/P2: Redial and pause function key 3.6 sec. and P2 is 2.0 sec. /T: in tone mode ...

Page 7

Normal Dialing OFF HOOK (or ON HOOK 1. D1, D2 will be dialed out. 2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits in normal dialing. Redialing 1. OFF HOOK (or ON HOOK ...

Page 8

If the mode switch is set to pulse mode, then the output signal will be: D1, D2, , Dn, Pause (2.0 sec. or 3.6 sec.), D1', D2', (Pulse the mode switch is set to tone mode, then ...

Page 9

DC CHARACTERISTICS ( 2.5V 3.579545 MHz OSC. PARAMETER Operating Voltage Operating Current Standby Current Memory Retention Current DTMF Output Voltage Pre-emphasis DTMF Distortion DTMF Output DC Level DTMF Output Sink Current DP Output ...

Page 10

AC CHARACTERISTICS ( 2.5V 3.579545 MHz OSC. PARAMETER SYMBOL Key-in Debounce Key Release Debounce Off-hook Delay First Key-in Delay Pre-digit-pause 1 10 ppS Pre-digit-pause 2 20 ppS Interdigit Pause (Auto Dialing) Make/Break Ratio ...

Page 11

TIMING WAVEFORMS < 600 mS HKS < 300 mS 3 KEY T/P MUTE H/P MUTE DTMF OSC. Figure 1a. Normal Dialing Timing Diagram (Pulse Mode Without Lock Function) < 600 mS HKS < 300 mS 3 KEY ...

Page 12

Timing Waveforms, continued < 600 mS HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC. Figure 1c. Auto Dialing Timing Diagram (Pulse Mode Without Lock Function) < 600 mS HKS KEY IN 300 mS T OFD DP T/P MUTE ...

Page 13

Timing Waveforms, continued < 600 mS HKS < 300 mS 3 KEY IN T KID DTMF T TD T/P MUTE H/P MUTE DP OSC. Figure 2a. Normal Dialing Timing Diagram (Tone Mode Without Lock Function) < 600 mS HKS < ...

Page 14

Timing Waveforms, continued < 600 mS HKS KEY IN DTMF T/P MUTE H/P MUTE DP OSC. Figure 2c. Auto Dialing Timing Diagram (Tone Mode Without Lock Function) < 600 mS HKS KEY IN DTMF T/P MUTE 300 mS H/P MUTE ...

Page 15

Timing Waveforms, continued HKS HFI H KEY HFO T/P MUTE H/P MUTE CHIP ENBLE Note: The H KEY cannot be enabled when chip is disabled. HKS HFI H KEY HFO T/P MUTE H/P MUTE CHIP ENBLE Note: The HFI and ...

Page 16

Timing Waveforms, continued HKS HFI H KEY HFO T/P MUTE H/P MUTE CHIP ENBLE Note: Changing the state of the HKS signal from high to low will initialize the HFO and H/P MUTE signals. HKS < 600 mS KEY IN ...

Page 17

Timing Waveforms, continued < 600 mS HKS 300 mS KEY IN T OFD DP T/P MUTE H/P MUTE T DTMF FKD OSC. OSCILLATION < 600 mS HKS 300 mS KEY IN T OFD DP T/P MUTE H/P MUTE DTMF OSC. ...

Page 18

Timing Waveforms, continued HKS KEY KID DP HFI HFO T/P MUTE H/P MUTE DTMF OSC. Low KID T FB OSCILLATION Figure 7. Flash Timing Diagram - 18 - W91320N SERIES 3 T ...

Page 19

... No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-7190505 FAX: 886-2-7197502 Note: All data and specifications are subject to change without notice. W91320N SERIES Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2730 Orchard Parkway, San Jose, CA 95134, U.S.A. ...

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