W9145 Datasheet PDF - Winbond


www.Datasheet-PDF.com

W9145
Winbond

Part Number W9145
Description 15-MEMORY TONE/PULSE DIALER
Page 18 Pages

W9145 datasheet pdf
View PDF for PC
W9145 pdf
View PDF for Mobile


No Preview Available !

W9145 SERIES
15-MEMORY TONE/PULSE DIALER WITH LOCK
AND HANDFREE FUNCTIONS
GENERAL DESCRIPTION
The W9145 series are Si-gate CMOS ICs that provide the necessary signals for either pulse or tone
dialing. The W9145 series feature a key tone function, handfree dialing, a lock function, thirteen 16-
digit automatic dialing memories, and two by 32-digit for redial and save memory.
FEATURES
DTMF/Pulse switchable dialer
Two by 32 digits for redial and save memory
Three by 16 digits for one-touch direct repertory
Ten by 16 digits for two-touch indirect repertory
Unlimited dialing length (redial inhibited if dialing length exceeds 32 digits in normal dialing)
Auto Pause Access for PBX and toll service operations (3.1 seconds per pause)
Easy operation with redial, store, auto and pause keypads
Key tone output for recognition of valid keypad entry
Call disconnect (CD) key for line break operation
Mute key for speech mute
Flash time: 98 mS, 305 mS or 600 mS
Minimum tone output duration: 93 mS
Minimum intertone pause: 93 mS
0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
Automatic switching from pulse mode to tone mode by */T key operation
Break/make ratio pin selectable
Uses Form A keyboard or standard 5 × 5 matrix keyboard
Uses inexpensive 3.579545 MHz television color-burst crystal
Internally generated power-on reset
Packaged in 22/24-pin DIP
The different dialers in the W9145 series are shown in the following table:
TYPE NO. PULSE (ppS)
FLASH
B/M
HANDFREE
LOCK
W9145
10 98/305/600 Pin
No
No
W9145A
10 98/305/600 Pin
Yes
No
W9145L
10 98/305/600 Pin No Yes
W9145AL
10 98/305/600 Pin
Yes
Yes
PIN CONFIGURATIONS
Publication Release Date: August 1996
- 1 - Revision A4



No Preview Available !

W9145 SERIES
C1
C2
C3
C4
VSS
XT
XT
T/P MUTE
HKS
DP/C5
DTMF
1 22
2 21
3 20
4 19
5 18
6 17
7 16
8 15
9 14
10 13
11 12
W9145
R5
R4
R3
R2
R1
VDD
B/M
TEST
MODE
X MUTE
KT
C1
C2
C3
C4
VSS
XT
XT
T/P MUTE
HKS
DP/C5
DTMF
HFI
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
W9145A
R5
R4
R3
R2
R1
VDD
B/M
TEST
MODE
X MUTE
KT
HFO
C1
C2
C3
C4
VSS
XT
XT
T/P MUTE
HKS
DP/C5
DTMF
1 22
2 21
3 20
4 19
5 18
6 17
7 16
8 15
9 14
10 13
11 12
W9145L
R5
R4
R3
R2
R1
VDD
B/M
LOCK
MODE
X MUTE
KT
C1
C2
C3
C4
VSS
XT
XT
T/P MUTE
HKS
DP/C5
DTMF
HFI
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
W9145AL
R5
R4
R3
R2
R1
VDD
B/M
LOCK
MODE
X MUTE
KT
HFO
PIN DESCRIPTION
-2-



No Preview Available !

W9145 SERIES
SYMBOL
Column-
Row
Inputs
22-PIN
14
&
1822
XT, XT
T/P
MUTE
6, 7
8
MODE
HKS
14
9
B/M 16
VDD, VSS
X MUTE
17, 5
13
24-PIN
14
&
2024
6, 7
8
16
9
16
19, 5
15
I/O FUNCTION
I Keyboard inputs may be connected to either a standard
keyboard, an inexpensive signal contact (Form A)
keyboard, or electronic input from a µC. A valid key entry
is defined by a single row being connected to a single
column.
I, O A built-in inverter provides oscillation by means of an
inexpensive 3.579545 MHz crystal or ceramic resonator.
O The T/P MUTE is a conventional CMOS inverter that
pulls to VDD in the absence of keypad input and pulls to
VSS when an address keypad entry is sensed (excluding
the * and # keypads in pulse mode). When any keypad in
row 5 and column 5 is pushed, the mute out remains at
high level.
I Pull to VSS to enable tone mode. Pull to VDD to enable
pulse mode (10 ppS).
I Hook switch input. When pulled to high, chip is in on-hook
state (no operation). When pulled to low, chip is in off-
hook state (enabled for normal operation). This pin is
pulled to VDD by internal resistor.
Note: This pin operates in conjunction with the handfree
control pins; for further information see description of
handfree control pins below.
I B/M = 1: Break/Make ratio is 60:40.
B/M = 0: Break/Make ratio is 67:33.
This pin has no function in tone mode.
I Power input pins.
O The X MUTE is a conventional CMOS inverter that in tone
mode is active while a DTMF signal is being transmitted.
In pulse mode, this output remains low at all times.
Publication Release Date: August 1996
- 3 - Revision A4



No Preview Available !

W9145 SERIES
Pin Description, continued
SYMBOL 22-PIN
HFI ,
HFO
-
24-PIN
12, 13
I/O FUNCTION
I, O Handfree control pins.
A low pulse on HFI toggles on the handfree control state.
Status of the handfree control state is indicated in the
following table:
CURRENT STATE
HOOK SW. HFO
- Low
On Hook
High
Off Hook
High
On Hook
-
Off Hook
Low
Off Hook
High
NEXT STATE
INPUT
HFO DIALING
HFI
High
Yes
HFI Low No
HFI Low Yes
Off Hook Low
Yes
On Hook Low
No
On Hook High
Yes
KT
LOCK
HFI pin is pulled to VDD by internal resistor.
12 14 O Key tone signal output. A 1.2 KHz key tone will be
generated when any key is depressed in pulse mode or
when function keys are depressed in tone mode.
15 17 I The function of this terminal is to prevent "0" dialing in
(W9145L (W9145AL
only)
only)
and "9" dialing under PABX system long distance call
control. When the first key input after reset is 0 or 9, all
key inputs, including the 0 or 9 key, become invalid and
the chip generates no output. The telephone is
reinitialized by a reset.
LOCK PIN
FUNCTION
VDD
Floating
Normal dialing mode
"0," "9" dialing inhibited
VSS "0" dialing inhibited
TEST
DP / C5
15
(W9145
only)
10
17
(W9145A
only)
10
I During normal operation, the TEST pin should be tied to
VDD, thereby inhibiting the single tone and setting the
pulse rate to 10 ppS.
O This pin is a CMOS inverter output.
The timing diagram is shown in Figure 1. Flash key will
cause DP / C5 to go active in either pulse or tone mode.
-4-




W9145 datasheet pdf
Download PDF
W9145 pdf
View PDF for Mobile


Similiar Datasheets : W91-X1110-20 W91-X112-1 W91-X112-10 W91-X112-15 W91-X112-2 W91-X112-20 W91-X112-3 W91-X112-40 W91-X112-5 W91-X112-50 W91-X112-7 W91-X113-10 W91-X113-15 W91-X113-5 W91-X150-5 W91-X152-10 W91-X152-15 W91-X152-20 W91-X152-30 W91-X152-40 W91-X152-50 W91030B W91031 W91210 W91212 W91214 W91214A W91216 W91310 W91312

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   

This is a individually operated, non profit site. If this site is good enough to show, please introduce this site to others.
Since 2010   ::   HOME   ::   Privacy Policy + Contact