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Электронный компонент: W91460N

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W91460N SERIES
3-MEMORY TONE/PULSE DIALER
WITH SAVE FUNCTION
Publication Release Date: May 1997
- 1 -
Revision A2
GENERAL DESCRIPTION
The W91460N series are Si-gate CMOS ICs that provide the necessary signals for either tone or
pulse dialing. The W91460N series features save memory and 3 by 16-digit automatic dialing
memory.
FEATURES
DTMF/pulse switchable dialer
Two by 32-digit redial and save memory
Three by 16-digit one-touch direct memory
Redial memory cascadable with normal dialing; dialing length is unlimited, but if length exceeds
32-digit the redial function is inhibited
Pulse-to-tone (*/T) keypad for long distance call operation
Uses 5
5 keyboard
Easy operation with redial, flash, pause and */T keypads
Flash, pause, P
T (pulse-to-tone) can be stored as a digit in memory
Dialing rate (10, 20 ppS ) selected by bonding option
On-hook debounce time: 150 msec.
Minimum tone output duration: 93 msec.
Minimum intertone pause: 93 msec.
Flash break time (73, 100, 300, 600 msec.) selectable by keypad; pause time is 1.0 sec.
On-chip power-on reset
Uses 3.579545 MHz crystal or ceramic resonator
Packaged in 18-pin plastic DIP
The different dialers in the W91460N series are shown in the following table:
TYPE NO.
REPLACEMENT
TYPE NO.
PULSE
(ppS)
FLASH
(mS)
PAUSE
(S)
M/B
W91462
W91462N
W91463
10
600/300/73/100
3.6
Pin
W91464
W91465
W91466N
W91466
20
600/300/73/100
3.6
Pin
W91467
W91460N SERIES
- 2 -
PIN CONFIGURATION
C1
C2
C3
C4
SS
V
XT
XT
1
2
3
4
5
6
7
8
9
T/P MUTE
HKS
DTMF
MODE
R4
R3
R2
R1
V
DD
DP
12
18
17
16
15
14
10
11
13
C5
PIN DESCRIPTION
SYMBOL
PIN
I/O
FUNCTION
Column-
Row
Inputs
1
-
5
&
15
-
18
I
The keyboard inputs may be used with either a standard 5
5
keyboard or an inexpensive single contact (Form A) keyboard.
Electronic input from a
C can also be used.
A valid key-in is defined as a single row being connected to a single
column.
XT, XT
7, 8
I, O
A built-in inverter provides oscillation with an inexpensive 3.579545
MHz crystal or ceramic resonator.
T/P
MUTE
9
O
The T/P MUTE is a conventional CMOS N-channel open drain output.
The output transistor is switched on during dialing sequence and flash
break time. Otherwise, it is switched off.
MODE
13
I
Pulling mode pin to V
SS
places the dialer in tone mode.
Pulling mode pin to V
DD
places the dialer in pulse mode with M/B ratio
40:60 (10 ppS for W91462N and 20 ppS for W91466N).
Floating mode pin places the dialer in pulse mode with M/B ratio
33.3:66.7 (10 ppS for W91462N and 20 ppS for W91466N).
W91460N SERIES
Publication Release Date: May 1997
- 3 -
Revision A2
Pin Description, continued
SYMBOL
PIN
I/O
FUNCTION
HKS
10
I
Hook switch input.
HKS = V
DD
: On-hook state. Chip in sleeping mode, no operation.
HKS = V
SS
: Off-hook state. Chip is enabled for normal operation.
HKS pin is pulled to V
DD
by an internal resistor.
DP
11
O
N-channel open drain dialing pulse output.
Flash key will cause DP to be active in either tone mode or pulse
mode.
The timing diagram for pulse mode is shown in Figure 1(a, b, c).
V
DD
, V
SS
14, 6
I
Power input pins.
DTMF
12
O
In pulse mode, this pin remains in low state at all times.
In tone mode, it will output a dual or single tone.
Detailed timing diagram for tone mode is shown in Figure 2(a, b, c).
Specified
Actual
Error %
Output Frequency
R1
R2
R3
R4
C1
C2
C3
697
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
W91460N SERIES
- 4 -
BLOCK DIAGRAM
DTMF
XT
XT
RAM
COUNTER
SYSTEM CLOCK
GENERATOR
LOCATION
LATCH
D/A
ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
READ/WRITE
ROW
COLUMN
(R1 to R4, Vx)
(C1 to C5)
T/P MUTE
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
KEYBOARD
INTERFACE
CONVERTER
HKS
DP
MODE
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1
C2
C3
C4
C5
1
2
3
S
M1
R1
4
5
6
F4
M2
R2
7
8
9
M3
R3
/T
0
#
R/P
SAVE
R4
F1
F2
F3
VX
S: Store function key
R/P: Redial and pause function key
SAVE: Save function key
/T:
in tone mode and P
T in pulse mode
M1, ..., M3: One-touch memory
F1, ..., F4: Flash keys, F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS
Note: D1, ..., Dn, D1', ..., Dn': 0, ..., 9, */T, #; Mn: M1, ..., M3; Fn: F1, ..., F4
W91460N SERIES
Publication Release Date: May 1997
- 5 -
Revision A2
Normal Dialing
OFF HOOK
,
D1
,
D2
, ...,
Dn
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
,
D1
,
D2
, ...,
Dn
Busy, Come
ON HOOK
,
OFF HOOK
,
R/P
1. The redial memory content will be dialed out.
2. The
R/P
key can execute the redial function only as the first key-in after off-hook; otherwise,
it executes the pause function.
3. If redialing length exceeds 32 digits, the redialing function will be inhibited.
Number Store
OFF
HOOK
,
D1
,
D2
,
...,
Dn
,
S
,
S
,
Mn
1. If the sequence of the dialed digits D1, D2, ..., Dn has not
finished,
S
will be ignored.
2. D1, D2, ..., Dn will be dialed out and stored in memory location.
OFF HOOK
,
S
,
D1
,
D2
,
...,
Dn
,
S
,
Mn
3. D1, D2, ..., Dn will be stored in memory location but will not be dialed out.
4.
R/P
and
*/T
keys can be stored as a digit in memory. In store
mode,
R/P
is the pause
function key;
*/T
is the pulse to tone function key.
The store mode is released after the store function is executed or when the state of the hook switch
is changed.
Repertory Dialing
OFF HOOK
,
Mn
Access Pause
OFF HOOK
,
D1
,
D2
,
R/P
,
D3
, ...,
Dn
1. The pause function can be stored as a digit in memory.
2. The pause function is executed in normal dialing, redial dialing, or memory dialing.
3. A detailed timing diagram for the pause function is shown in Figure 3.
Pulse-to-tone (*/T)
W91460N SERIES
- 6 -
OFF HOOK
,
D1
,
D2
, ...,
Dn
,
*/T
,
D1'
,
D2'
, ...,
Dn'
1. If the mode switch is set to pulse mode, then the output signal will be:
D1, D2,
...
, Dn, Pause (3.6 sec.), D1', D2',
...
, Dn'
(Pulse)
(Tone )
2. If the mode switch is set to tone mode, then the output signal will be as follows:
D1, D2, ..., Dn, *, D1', D2', ..., Dn'
(Tone)
(Tone)
3. The dialer remains in tone mode when the digits have been dialed out and can be reset to pulse
mode only by going on-hook.
4. The pulse-to-tone function timing diagram is shown in Figure 4.
Flash
OFF HOOK
,
Fn
1. Fn = F1,
...
, F4
2. The dialer will execute a flash break time of 600 mS (F1), 300 mS (F2), 73 mS (F3), or 100 mS
(F4) In each case, the flash pause time is 1.0 sec. before the next digit is dialed out.
3. Flash key can be stored as a digit in memory; however, only one flash will be released to users.
4. The system will return to the initial state after the flash pause time is finished.
5. The timing diagram of flash function is shown in Figure 5.
Save
OFF HOOK
,
D1
,
D2
,
...,
Dn
,
SAVE
1. If the dialing
of
D1
to
Dn
is finished, pressing the
SAVE
key will cause D1 to Dn to
be copied to the save memory.
OFF HOOK
,
SAV
E
2. D1 to Dn will be dialed out after the save key is pressed.
Cascaded Dialing
1. Normal Dialing
+
Repertory Dialing
+
Normal Dialing
2.
Repertory Dialing
+
Normal Dialing
+
Repertory Dialing
3.
Redialing
+
Normal
+
Repertory Dialing
W91460N SERIES
Publication Release Date: May 1997
- 7 -
Revision A2
Dialing
Redialing is valid as first key-in only.
W91460N SERIES
- 8 -
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
DC Supply Voltage
V
DD
-
V
SS
-0.3 to +7.0
V
V
IL
V
SS
-0.3
V
Input/Output Voltage
V
IH
V
DD
+0.3
V
V
OL
V
SS
-0.3
V
V
OH
V
DD
+0.3
V
Power Dissipation
P
D
120
mW
Operation Temperature
T
OPR
-20 to +70
C
Storage Temperature
T
STG
-55 to +150
C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
DC CHARACTERISTICS
(V
DD
-
V
SS
= 2.5V, F
OSC.
= 3.579545 MHz, T
A
= 25
C, All outputs unloaded)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
DD
-
2.0
-
5.5
V
Operating Current
I
OP
Tone, Unloaded
-
0.4
0.6
mA
Pulse, Unloaded
-
0.2
0.4
Standby Current
I
SB
HKS = V
SS
, No load
& No key entry
-
-
15
A
Memory Retention Current
I
MR
HKS = V
DD
,
V
DD
= 1.0V
-
-
0.2
A
DTMF Output Voltage
V
TO
Row group,
R
L
= 5 K
130
150
170
mVrms
Pre-emphasis
Col/Row,
V
DD
= 2.0 to 5.5V
1
2
3
dB
DTMF Distortion
THD
R
L
= 5 K
,
V
DD
= 2.0 to 5.5V
-
-30
-23
dB
DTMF Output DC Level
V
TDC
R
L
= 5 K
,
V
DD
= 2.0 to 5.5V
1.0
-
3.0
V
DTMF Output Sink Current
I
TL
V
TO
= 0.5V
0.2
-
-
mA
DP Output Sink Current
I
PL
V
PO
= 0.5V
0.5
-
-
mA
T/P
MUTE
Output Sink
Current
I
ML
V
TMO
= 0.5V
0.5
-
-
mA
W91460N SERIES
Publication Release Date: May 1997
- 9 -
Revision A2
DC Characteristics, continued
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Keypad Input Drive Current
I
KD
V
I
= 0.0V
30
-
-
A
Keypad Input Sink Current
I
KS
V
I
= 2.5V
200
400
-
A
HKS I/P Pull-high Resistor
R
HK
-
-
300
-
K
Keypad Resistance
R
K
-
-
-
5.0
K
AC CHARACTERISTICS
(V
DD
-
V
SS
= 2.5V, F
OSC
. = 3.579545 MHz, T
A
= 25
C, All outputs unloaded)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Key-in Debounce
T
KID
-
-
20
-
mS
Key Release Debounce
T
KRD
-
-
20
-
mS
Pre-digit Pause
1
T
PDP1
Mode = V
DD
-
40
-
mS
10 ppS
Mode = Floating
-
33.3
-
Pre-digit Pause
2
T
PDP2
Mode = V
DD
-
20
-
mS
20 ppS
Mode = Floating
-
16.7
-
Interdigit Pause
T
IDP
10 ppS
-
800
-
mS
(Auto Dialing)
20 ppS
-
500
-
Make/Break Ratio
M:B
Mode = V
DD
-
40:60
-
%
Mode = Floating
-
33.3:66.7
-
Tone Output Duration
T
TD
Auto dialing
-
93
-
mS
Intertone Pause
T
ITP
Auto dialing
-
93
-
mS
F1
-
600
-
Flash Break Time
T
FB
F2
-
300
-
mS
F3
73
F4
-
100
-
Flash Pause Time
T
FP
F1, F2, F3, F4
-
1.0
-
S
Pause Time
T
P
-
-
3.6
-
S
On-hook Debounce Time
T
OHD
-
-
150
-
mS
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100
, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
F
OSC
. = 3.579545 MHz
0.02%.
2. Crystal oscillator accuracy directly affects these times.
W91460N SERIES
- 10 -
TIMING WAVEFORMS
T
IDP
HKS
KEY IN
DP
2
B
M
T
IDP
T
IDP
T
KID
T
IDP
T
PDP
2
M B
4
T
KRD
3
T
KID
T
PDP
T/P MUTE
DTMF
OSC.
Low
OSCILLATION
OSCILLATION
Figure 1(a) Normal Dialing Timing Diagram
HKS
KEY IN
DP
T/P MUTE
R/P
T
KID
B
M
T
IDP
T
IDP
T
PDP
M B
DTMF
OSC.
Low
OSCILLATION
T
IDP
T
KRD
T<T
OHD
Figure 1(b) Pulse Mode Auto Dialing Timing Diagram
W91460N SERIES
Publication Release Date: May 1997
- 11 -
Revision A2
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
R/P
T
KID
B
M
T
IDP
T
IDP
T
PDP
M B
DTMF
OSC.
Low
OSCILLATION
T
KRD
OHD
>
T
T
Figure 1(c) Pulse Mode Auto Dialing Timing Diagram
HKS
KEY IN
T/P MUTE
DTMF
5
4
3
T
TD
OSC.
DP
OSCILLATION
2
T
ITP
T
ITP
T
KID
High
T
ITP
OSCILLATION
T
KRD
Figure 2(a) Tone Mode Normal Dialing Timing Diagram
W91460N SERIES
- 12 -
Timing Waveforms, continued
HKS
KEY IN
DTMF
R/P
T
KRD
OSC.
DP
OSCILLATION
T
TD
T
ITP
T
ITP
T
KID
High
T/P MUTE
T<T
OHD
Figure 2(b) Tone Mode Auto Dialing Timing Diagram
HKS
KEY IN
DTMF
R/P
T
KRD
OSC.
DP
OSCILLATION
T
TD
T
ITP
T
KID
High
T/P MUTE
OHD
>
T
T
Figure 2(c) Tone Mode Auto Dialing Timing Diagram
W91460N SERIES
Publication Release Date: May 1997
- 13 -
Revision A2
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
DTMF
OSC.
Low
OSCILLATION
2
T
KID
R/P
3
B
M
T
PDP
M
T
IDP
B
T
PDP
T
P
Figure 3. Pause Function Timing Diagram
HKS
KEY IN
DP
T/P MUTE
DTMF
OSC.
OSCILLATION
2
T
KID
*/T
3
B
M
T
PDP
T
IDP
T
P
Figure 4. Pulse-to-tone Timing Diagram
W91460N SERIES
- 14 -
Timing Waveforms, continued
T/P MUTE
F
F
HKS
T
KID
DP
KEY IN
T
FP
T
FP
T
FB
3
Low
OSC.
OSCILLATION
DTMF
T
ITP
Figure 5. Flash Timing Diagram
W91460N SERIES
- 16 -
Headquarters
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5792697
http://www.winbond.com.tw/
Voice & Fax-on-demand: 886-2-7197006
Taipei Office
11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-7190505
FAX: 886-2-7197502
Winbond Electronics (H.K.) Ltd.
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27516023
FAX: 852-27552064
Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.
2730 Orchard Parkway, San Jose,
CA 95134, U.S.A.
TEL: 1-408-9436666
FAX: 1-408-9436668
Note: All data and specifications are subject to change without notice.