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W91550DN PDF даташит

Спецификация W91550DN изготовлена ​​​​«Winbond» и имеет функцию, называемую «13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTION».

Детали детали

Номер произв W91550DN
Описание 13-MEMORY TONE/PULSE DIALER WITH LCD AND LOCK FUNCTION
Производители Winbond
логотип Winbond логотип 

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W91550DN Даташит, Описание, Даташиты
W91550DN SERIES
13-MEMORY TONE/PULSE DIALER
WITH LCD AND LOCK FUNCTIONS
GENERAL DESCRIPTION
The W91550DN series are Si-gate CMOS IC tone/pulse switchable dialers containing 13 number
memories and a 10-digit LCD driver for displaying telephone numbers and calling time, including a
16-digit × 3 one-touch memory, 16-digit × 10 two-touch memory dialing, and 32-digit × 2 redial and
save memory. These dialers also provide a secrecy key, flash, two-way handfree dialing, one-key
redial, hold and lock functions.
FEATURES
Tone/pulse switchable dialer
Two by 32-digit redial and save memory (or mercury memory)
Three by 16-digit one-touch direct repertory memory
Ten by 16-digit two-touch indirect repertory memory
Memory check function
Save/mercury function selected by pin option
Typical interdigit pause (IDP): 800 msec (10 ppS) in pulse mode
Uses 4 × 7 keyboard
Mute key for secrecy control
Minimum tone output duration/inter-tone pause: 87/87 mS
Flash pause time: 1.2 sec.
Flash break time (98, 300, 600 msec) selectable by keypad
Pause time (2.0, 3.6, 4.0 sec.) selectable by mask option
Pulse-to-tone (*/T) keypad for long distance call operation
0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
Make/break ratio selected by pin option
Built-in 10-digit LCD driver for telephone number display and calling time (1/3 duty, 1/2 bias)
Built-in calling time from (00:00) to (59:59)
On-chip power-on reset and clear LCD
On hook debounce: 250 msec in normal mode (20 msec in lock mode)
First key-in delay: 300 msec in lock mode
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 64-pin QFP
The different dialers in the W91550DN series are shown in the following table:
TYPE NO.
W91550DNF
W91550DNF-1
W91550DNH
W91550DNH-1
FUNCTION
Default pause time is 3.6 sec. and all F1, F2, F3 are first priority.
Same as W91550DN except F3 can be stored as a digit.
Default pause time is 3.6 sec. and all F1, F2, F3 are first priority.
Same as W91550DN except F3 can be stored as a digit.
PACKAGE
QFP
QFP
Chip
Chip
Publication Release Date: November 1998
- 1 - Revision A3









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W91550DN Даташит, Описание, Даташиты
PIN CONFIGURATION
52
W91550DN SERIES
33
64
1
20
NO. NAME NO. NAME NO.
NAME
NO. NAME
1 KMUTE 17 5C 33 10C 49 C6
2
COM3
18
6A
34
VSS
50 R1
3
1A
19
6B
35 DTMF 51
R2
4 1B 20 6C 36 B/M 52 R3
5
1C 21 7A
37 TEST 53
R4
6 2A 22 7B 38 VDD 54 XT
7 2B 23 7C 39 HPM MUTE 55 XT
8
2C 24 8A
40 T/P MUTE 56
HKS
9 3A 25 8B 41 ATS 57 HFI
10 3B 26 S/M 42 DP 58 HFO
11 3C 27 8C 43 MODE 59 VLCD
12 4A 28 9A 44 C1 60 CP
13 4B 29 9B 45 C2 61 CN
14 4C 30 9C 46 C3 62 COM1
15 5A 31 10A 47 C4 63 COM2
16 5B 32 10B 48 C5 64 LOCK
-2-









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W91550DN Даташит, Описание, Даташиты
W91550DN SERIES
PIN DESCRIPTION
SYMBOL
Column,
Row
Inputs
XT, XT
T/P MUTE
HPM MUTE
KMUTE
MODE
HKS
PIN
4449
&
5053
54, 55
40
39
1
43
56
I/O FUNCTION
I The keyboard input may be used with either the standard 4 × 7
keyboard, an inexpensive single contact (form A) keyboard or
electronic input.
A valid key entry is defined by a single row being connected to a
single column.
I, O A built-in inverter provides oscillation with an inexpensive
3.579545MHz crystal. Most crystals do not vary by more than 0.02%.
The oscillator oscillates in off-hook or handfree mode but oscillation
ceases in on-hook mode or when the handfree mode is released.
O The T/P MUTE is a conventional CMOS N-channel open drain
output. The output transistor is switched on during pulse and tone
mode dialing sequences and flash breaks. Otherwise, it is switched
off.
O The HPM MUTE is a conventional CMOS inverter output. During
pulse dialing, flash break, hold, and mercury mute functions, this pin
will output an active high. Otherwise, it remains in a low state.
O The KMUTE is a CMOS N-channel open drain output. The output
transistor is switched on only during the mute function. Otherwise, it is
switched off.
I Pulling mode pin to VSS places the dialer in tone mode.
Pulling mode pin to VDD places the dialer in pulse mode.
Pulse or tone mode can be selected any time.
I Hook switch input.
HKS = VDD: On-hook state. Chip in sleeping mode, no operation.
HKS = VSS: Off-hook state. Chip enable for normal operation.
HKS pin is pulled to VDD by internal resistor.
DP 42 O This pin is a CMOS inverter output. The timing diagram is shown as
Figure 1(a), 1(b), 1(c), 1(d). Flash key will cause DP to go active in
either pulse mode or tone mode.
Publication Release Date: November 1997
- 3 - Revision A3










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