Page 1
W91430N SERIES
13-MEMORY TONE/PULSE DIALER
WITH SAVE FUNCTION
GENERAL DESCRIPTION
The W91430N series are Si-gate CMOS ICs that provide the necessary signals for either tone or
pulse dialing. The W91430N series features save memory and a 13 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
• Ten
by 16 digit two-touch direct memory
• Redial memory cascadable with normal dialing; dialing length is unlimited, but if length oversteps
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 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 W91430N series are shown in the following table:
TYPE NO. REPLACEMENT
TYPE NO.
PULSE
(ppS)
FLASH
(mS)
PAUSE
(S)
M/B
W91432N W91432 10 600/300/73/100 3.6 Pin
W91444
W91446
W91447
W91445
W91434G
W91435G
W91433N W91433 20 600/300/73/100 3.6 Pin
Publication Release Date: May 1997
- 1 - Revision A3
Page 2
PIN CONFIGURATION
XT
XT1234
7
8
9
HKS
DTMF
MODE
R4R3R2
R1
12
18
16
15
14
10
11
13
XT
MUTE
MUTE
W91430N SERIES
C1
C2
C3
C4
C5
V
SS
T/P MUTE
5
6
17
V
DP
DD
PIN DESCRIPTION
SYMBOL PIN I/O FUNCTION
Column-
Row
Inputs
1−5
&
15−18
The keyboard inputs may be used with either a standard 5 × 5
keyboard or an inexpensive single contact (Form A) keyborad.
I
Electronic input from a µC can also be used.
A valid key in is defined as a single row being connected to a single
column.
XT,
7, 8 I, O A built-in inverter provides oscillation with an inexpensive 3.579545
MHz crystal or ceramic resonator.
T/P
9 O
The T/P
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 VSS places the dialer in tone mode.
Pulling mode pin to VDD places the dialer in pulse mode with M/B ratio
40:60
(20 ppS only for W91433N and 10 ppS for the others, M/B = 40:60).
Floating mode pin places the dialer in pulse mode with M/B ratio 33:67
(20 ppS only for W91433N and 10 ppS for the others).
- 2 -
Page 3
W91430N SERIES
HKS
HKS
HKS
HKS
DP
R1R2R3
R4
C1
C2
C3
Pin Description, continued
SYMBOL PIN I/O FUNCTION
10 I Hook switch input.
= VDD: On-hook state. Chip in sleeping mode, no operation.
= VSS: Off-hook state. Chip is enabled for normal operation.
pin is pulled to VDD by internal resistor.
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 in pulse mode is shown in Figure 1(a, b, c).
VDD, VSS 14, 6 I Power input pins.
DTMF 12 O In pulse mode, this pin remains in low state at all time.
In the tone mode, it will output a dual or single tone.
Detailed timing diagram for tone mode is shown in
Figure 2(a, b, c).
Output Frequency
Specified Actual Error %
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
Publication Release Date: May 1997
- 3 - Revision A3
Page 4
BLOCK DIAGRAM
W91430N SERIES
XT XT
ROW
(R1 to R4, Vx)
COLUMN
(C1 to C5)
DTMF
KEYBOARD
INTERFACE
D/A
CONVERTER
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1 C2 C3 C4 C5
1 2 3 S M1 R1
LOCATION
LATCH
ROW & COLUMN
PROGRAMMABLE
COUNTER
READ/WRITE
COUNTER
RAM
DATA LATCH
& DECODER
SYSTEM CLOCK
GENERATOR
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
HKS
MODE
T/P MUTE
DP
4 5 6 F4 M2 R2
7 8 9 A M3 R3
∗/T
0 # R/P SAVE R4
F1 F2 F3 VX
• S: Store function key
• A: Indirect repertory dialing function key
• R/P: Redial and pause function key
• SAVE: Save function key
• ∗/T: ∗ in tone mode and P→T in pulse mode
• M1 to 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; Ln: 0, ..., 9 ; Fn: F1, ..., F4
- 4 -
Page 5
W91430N SERIES
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 oversteps 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 pause function.
3. If redialing length oversteps 32 digits, the redialing function will be inhibited.
Number Store
OFF HOOK , D1 , D2 , ..., Dn , S , S , Mn (or Ln )
1. If the sequence of the dialed digits D1, D2, ..., Dn has not
finished,
2. D1, D2, ..., Dn will be stored in memory location and dialed out.
OFF HOOK , S , D1 , D2 , ..., Dn , S , Mn (or Ln )
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.
5. The store mode is released after the store function is executed or when the state of the hook
switch is changed.
S will be ignored.
Repertory Dialing
1. OFF HOOK , Mn
2. OFF HOOK , A , Ln
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.
Publication Release Date: May 1997
- 5 - Revision A3
Page 6
W91430N SERIES
Pulse-to-tone (*/T)
OFF HOOK , D1 , D2 , ..., Dn , */T , D1' , D2' , ..., Dn'
1. If the mode switch is set in 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 in tone mode, then the output signal will be the form as follow:
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 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 flash break time of 600 mS (F1), 300 mS (F2), 73 mS (F3), or 100 mS (F4)
and all 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 , SAVE
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 Dialing + Repertory Dialing
4. Redialing is valid as first key-in only.
- 6 -
Page 7
W91430N SERIES
HKS
HKS
DP
MUTE
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATING UNIT
DC Supply Voltage VDD−VSS -0.3 to +7.0 V
Input/Output Voltage VIL VSS -0.3 V
VIH VDD +0.3 V
VOL VSS -0.3 V
VOH VDD +0.3 V
Power Dissipation PD 120 mW
Operation Temperature TOPR -20 to +70
Storage Temperature TSTG -55 to +150
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
DC CHARACTERISTICS
(VDD-VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded)
PARAMETER
SYMBOL
Operating Voltage VDD - 2.0 - 5.5 V
Operating Current IOP Tone, Unloaded - 0.4 0.60 mA
Standby Current ISB
Memory Retention
Current
DTMF Output Voltage VTO Row group,
Pre-emphasis Col/Row,
DTMF Distortion THD
DTMF Output DC Level VTDC
DTMF Output Sink
Current
Output Sink Current
T/P
Current
Keypad Input Drive
Current
Output Sink
IMR
ITL VTO = 0.5V 0.2 - - mA
IPL VPO = 0.5V 0.5 - - mA
ITML VTMO = 0.5V 0.5 - - mA
IKD VI = 0.0V 30 - -
CONDITIONS MIN. TYP. MAX. UNIT
Pulse, Unloaded - 0.2 0.40
= VSS, No load &
No key entry
= VDD,
VDD = 1.0V
RL = 5 KΩ
VDD = 2.0 to 5.5V
RL = 5 KΩ,
VDD = 2.0 to 5.5V
RL = 5 KΩ,
VDD = 2.0 to 5.5V
- - 15
- - 0.2
130 150 170 mVrms
1 2 3 dB
- -30 -23 dB
1.0 - 3.0 V
°C
°C
µA
µA
µA
Publication Release Date: May 1997
- 7 - Revision A3
Page 8
W91430N SERIES
HKS
DC Characteristics, continued
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Keypad Input Sink
Current
I/P Pull-High
Resistor
Keypad Resistance RK - - - 5.0
AC CHARACTERISTICS
(VDD-VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, all outputs unloaded)
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Key in Debounce TKID - - 20 - mS
Key Release Debounce TKRD - - 20 - mS
Pulse Mute Delay TMD Mode = VDD - 40 - mS
Pre-digit-pause 1 TPDP1 Mode = VDD - 40 - mS
Pre-digit-pause 2 TPDP2 Mode = VDD - 20 - mS
Interdigit Pause TIDP
(Auto Dialing)
Make/Break Ratio M:B Mode = VDD - 40:60 - %
Tone Output Duration TTD
Intertone Pause TITP
Flash Break Time TFB
Flash Pause Time TFP
Pause Time TP
On-hook Debounce
Time
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100 ohms, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF,
FOSC. = 3.579545 MHz ±0.02%.
2. Crystal oscillator accuracy directly affects these times.
IKS VI = 2.5V 200 400 -
RHK - - 300 -
Mode = Floating - 33.3 -
10 ppS Mode = Floating - 33.3 -
20 ppS Mode = Floating - 16.7 -
10 ppS
20 ppS
- 800 - mS
- 500 -
Mode = Floating - 33:67 Auto dialing
Auto dialing
F1
F2
F3
F4
F1, F2, F3, F4
TOHD
- 93 - mS
- 93 - mS
-
-
600 300 - mS
73
-
-
-
-
100 -
1.0
3.6
150
µA
KΩ
KΩ
-
-
-
S
S
mS
- 8 -
Page 9
TIMING WAVEFORMS
M
M
HKS
KEY IN
DP
T/P MUTE
W91430N SERIES
T
3
T
KID
4
IDP
B
T
PDP
T
2
IDP
B
T
IDP
T
2
KRD
T
KID
T
IDP
T
PDP
DTMF
OSC.
HKS
KEY IN
DP
T/P MUTE
DTMF
Low
OSCILLATION
Figure 1(a) Normal Dialing Timing Diagram
T
R/P
BM
KRD
T
KID
M B
T
T
PDP
IDP T
Low
IDP
T<T
OHD
T
IDP
OSCILLATION
OSC.
OSCILLATION
Figure 1(b) Pulse Mode Auto Dialing Timing Diagram
Publication Release Date: May 1997
- 9 - Revision A3
Page 10
Timing Waveforms, continued
W91430N SERIES
HKS
KEY IN
DP
T/P MUTE
DTMF
OSC.
HKS
KEY IN
DTMF
T/P MUTE
T
KRD
R/P
T
KID
BM
T
PDP
M B
T
IDP T
Low
OSCILLATION
Figure 1(c) Pulse Mode Auto Dialing Timing Diagram
43
T
KID
T
TD
2
T
T
ITP
ITP
IDP
>T
T
OHD
T
KRD
5
T
ITP
DP
OSC.
High
OSCILLATION
Figure 2(a) Tone Mode Normal Dialing Timing Diagram
- 10 -
OSCILLATION
Page 11
Timing Waveforms, continued
W91430N SERIES
HKS
KEY IN
DTMF
T/P MUTE
DP
OSC.
HKS
KEY IN
DTMF
T/P MUTE
T<T
T
R/P
T
T
KRD
KID
TD T
OSCILLATION
ITP
High
OHD
Figure 2(b) Tone Mode Auto Dialing Timing Diagram
>T
T
OHD
R/P
T
T
KRD
T
KID
TD
T
ITP
T
ITP
DP
OSC.
High
OSCILLATION
Figure 2(c) Tone Mode Auto Dialing Timing Diagram
Publication Release Date: May 1997
- 11 - Revision A3
Page 12
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
2
TKID
BM
TPDP
R/P 3
W91430N SERIES
TIDP
M
B
PDP
T
TP
DTMF
OSC.
HKS
KEY IN
T/P MUTE
DTMF
DP
TPDP
Low
OSCILLATION
Figure 3. Pause Function Timing Diagram
2
*/T 3
KID
T
BM
TIDP
TP
OSC.
OSCILLATION
Figure 4. Pulse-to-tone Timing Diagram
- 12 -
Page 13
Timing Waveforms, continued
W91430N SERIES
HKS
KEY IN
DP
T/P MUTE
DTMF
OSC.
F F
T
KID
T
Figure 5. Flash Timing Diagram
FP
OSCILLATION
T
Low
FB
3
T
FP
T
ITP
Publication Release Date: May 1997
- 13 - Revision A3
Page 14
W91430N SERIES
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
Winbond Electronics (H.K.) Ltd.
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27513100
FAX: 852-27552064
Taipei Office
11F, 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.
- 14 -
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
Loading...