W91340A Winbond, W91340A Datasheet

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W91340A

Manufacturer Part Number
W91340A
Description
DTMF Transmitter, 3.58MHz, 5V, Standby, CMOS, 20-PDIP
Manufacturer
Winbond
Datasheet

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W91340A
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GENERAL DESCRIPTION
The W91340N series are tone/pluse switchable telephone dialers with ten memories, hold function,
and a handfree dialing control circuit. Fabricated using CMOS technology, the W91340N series offer good
performance in low-voltage and low-power applications.
FEATURES
DTMF/pulse switchable dialer
32-digit redial 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
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. (W91344AN: 87 mS)
Minimum intertone pause: 93 msec. (W91344AN: 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 W91340N series are shown in the following table:
Note: The W91344AN is designed specifically for use in France. The pause time is not added in pulse-to-tone mode.
W91340N
W91342N
W91340AN
W91342AN
W91344AN
TYPE NO.
4 keyboard
REPLACEMENT
W91340
W91341
W91342
W91340A
W91341A
W91342A
New type
10-MEMORY TONE/PULSE DIALER WITH
TYPE NO.
HANDFREE AND HOLD FUNCTIONS
PULSE
(ppS)
10
20
10
20
10
600/300/73/100
600/300/73/100
600/300/73/100
600/300/73/100
600/300/73/100
- 1 -
FLASH
(mS)
M/B
Pin
Pin
Pin
Pin
Pin
Publication Release Date: May 1997
W91340N SERIES
HANDFREE
DIALING
Yes
Yes
Yes
-
-
PACKAGE
Revision A2
(PINS)
18
18
20
20
20

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W91340A Summary of contents

Page 1

... The different dialers in the W91340N series are shown in the following table: TYPE NO. REPLACEMENT TYPE NO. W91340N W91340 W91341 W91342N W91342 W91340AN W91340A W91341A W91342AN W91342A W91344AN New type Note: The W91344AN is designed specifically for use in France. The pause time is not added in pulse-to-tone mode. HANDFREE AND HOLD FUNCTIONS PULSE FLASH ...

Page 2

... Hook switch input. HKS = V : On-hook state. Chip in sleeping mode operation. HKS = V : Off-hook state. Chip is enabled for normal SS operation. HKS pin is pulled W91340N SERIES MODE DTMF HKS 10 11 HFO HFI W91340AN/342AN/344AN FUNCTION places the dialer in tone mode. SS places the dialer in pulse mode internal resistor. DD ...

Page 3

Pin Description, continued SYMBOL 18-PIN 20-PIN 14 DTMF 10, 11 HFI, HFO H/P MUTE 5 5 I/O O N-channel open drain dialing pulse output. Flash key ...

Page 4

BLOCK DIAGRAM ROW (R1 to R4, Vx) KEYBOARD INTERFACE COLUMN (C1 to C4) D/A DTMF CONVERTER FUNCTIONAL DESCRIPTION Keyboard Operation Store function key H: Hold function key A: Indirect repertory memory dialing function key R/P: Redial and ...

Page 5

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

Page 6

The pause function is executed in normal dialing, redial dialing, or memory dialing. 3. The detailed timing diagram for the pause function is shown in Figure 4. Pulse-to-tone (*/T) OFF HOOK , (or ON HOOK , D2' , ..., ...

Page 7

ABSOLUTE MAXIMUM RATINGS PARAMETER DC Supply Voltage Input/Output Voltage Power Dissipation Operation Temperature Storage Temperature Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. DC CHARACTERISTICS (V V ...

Page 8

DC Characteristics, continued PARAMETER H/P Mute Output Drive/Sink Current HFO Drive/Sink Current Keypad Input Drive Current Keypad Input Sink Current HKS I/P Pull-high Resistor Keypad Resistance AC CHARACTERISTICS ( 2.5V 3.579545 MHz OSC. ...

Page 9

TIMING WAVEFORMS HKS 3 KEY IN T KID DP T/P MUTE H/P MUTE DTMF OSC. HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC IDP IDP T PDP Low OSCILLATION Figure ...

Page 10

Timing Waveforms, continued HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC. HKS 3 KEY IN T KID DTMF T TD T/P MUTE H/P MUTE DP OSC. Figure 2(a) Tone Mode Normal Dialing Timing Diagram T KRD R/P T ...

Page 11

Timing Waveforms, continued HKS KEY IN DTMF T/P MUTE H/P MUTE DP OSC. HKS KEY IN DTMF T/P MUTE H/P MUTE DP OSC. T KRD R/P T KID ITP Low High OSCILLATION Figure 2(b) Tone Mode Auto ...

Page 12

Timing Waveforms, continued HKS KEY IN MODE DP DTMF T/P MUTE H/P MUTE HFI HFO OSC HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC Figure 3. Handfree Function Timing Diagram 2 R/P 3 ...

Page 13

Timing Waveforms, continued HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC. Figure 5(a). Pulse-to-tone Timing Diagram (All Versions Except W91344AN) HKS KEY IN DP T/P MUTE H/P MUTE DTMF OSC. Figure 5(b). Pulse-to-tone Timing Diagram (W91344AN Only) 2 ...

Page 14

Timing Waveforms, continued HKS KEY IN T KID DP HFI HFO T/P MUTE H/P MUTE DTMF OSC. Low KID T FB OSCILLATION Figure 6. Flash Timing Diagram - 14 ...

Page 15

... 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. W91340N 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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