Page 1
W91510N SERIES
TONE/PULSE DIALER WITH HANDFREE
AND SAVE FUNCTIONS
GENERAL DESCRIPTION
The W91510N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse
dialing. The W91510N series provide one-key redial, handfree dialing, key tone, save, and redial
functions.
FEATURES
•
DTMF/pulse switchable dialer
•
Two by 32-digit redial and save memory
•
Pulse-to-tone (*/T) keypad for long distance call operation
•
Uses 5 × 4 keyboard
•
Easy operation with redial, flash, pause, and */T keypads
•
Pause, pulse-to-tone (*/T) can be stored as a digit in memory
• On-hook debounce time: 150 mS
•
Dialing rate (10 ppS or 20 ppS ) selectable by bonding option
•
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 or 20-pin plastic DIP
• The different dialers in the W91510N series are shown in the following table:
TYPE NO. REPLACEMENT
TYPE NO.
W91510N W91510 10 600/100/300/73 Pin - 18
W91511N W91511 20 600/100/300/73 Pin - 18
W91510AN W91510A 10 600/100/300/73 Pin Yes 20
W91511AN W91511A 20 600/100/300/73 Pin Yes 20
PULSE
(ppS)
FLASH
(mS)
M/B HANDFREE
DIALING
Publication Release Date: May 1997
- 1 - Revision A2
PACKAGE
(PINS)
Page 2
PIN CONFIGURATIONS
XT
XT
MUTE
MUTE
W91510N SERIES
1
2
3
4
5
6
7
8
9
10
W91510AN/W91511AN
C1
C2
C3
C4
KT
V
SS
XT
XT
T/P MUTE
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
W91510N/W91511N
R4
R3
R2
R1
DD
V
MODE
DTMF
DP
HKS
C1
C2
C3
C4
KT
V
SS
XT
T/P MUTE
HFI
PIN DESCRIPTION
SYMBOL 18-PIN 20-PIN I/O FUNCTION
20
19
16
14
13
12
18
17
15
11
R4
R3
R2
R1
VDD
MODE
DTMF
DP
HKS
HFO
Column-
Row
Inputs
XT,
T/P
1−4
&
15−18
1−4
&
17−20
I The keyboard inputs may be used with either a standard
5 × 4 keyboard or an inexpensive single contact (Form
A) keyboard. 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.
7, 8 7, 8 I, O A built-in inverter provides oscillation with an
inexpensive 3.579545 MHz crystal or ceramic
resonator.
9 9 O
The T/P
is a conventional CMOS N-channel
open drain output.
The output transistor is switched on during dialing
sequence, one-key redial break, and flash break time.
Otherwise, it is switched off.
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Page 3
W91510N SERIES
HKS
HKS
HKS
HKS
DP
R1R2R3
R4C1C2
C3
Pin Description, continued
SYMBOL 18-PIN 20-PIN I/O FUNCTION
MODE 13 15 I Pulling mode pin to VSS places the dialer in tone mode.
Pulling mode pin to VDD places the dialer in pulse mode
(10 ppS; 20 ppS for W91511N/511AN, M/B = 40:60).
Floating mode pin places the dialer in pulse mode
(10 ppS; 20 ppS for W91511N/511AN, M/B = 33.3:66.7).
10 12 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 an internal resistor.
11 13 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).
VDD, VSS 14, 6 16, 6 I Power input pins.
KT 5 5 O Key-tone signal output. The key tone is generated for all
valid keys. Frequency is 600 Hz and duration is 35 mS.
DTMF 12 14 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).
Output Frequency
Specified Actual Error %
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
697
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
Publication Release Date: May 1997
- 3 - Revision A2
Page 4
W91510N SERIES
HFI
HFI
HFO
HFI
Pin Description, continued
SYMBOL 18-PIN 20-PIN I/O FUNCTION
, HFO
- 10, 11 I, O Handfree control pins. The handfree control state is
BLOCK DIAGRAM
toggled on by a low pulse on the
input pin. The
status of the handfree control state is described in the
following table:
CURRENT STATE
Hook SW. HFO
Low
On Hook
Off Hook
On Hook Off Hook Low Yes
Off Hook
Off Hook
High
High
Low
High
NEXT STATE
Input
HFI
HFI
HFI
On Hook
On Hook
High Yes
Low No
Low Yes
Low
High Yes
Dialing
No
pin is pulled to VDD by an internal resistor.
Detailed timing diagrams are shown in Figure 3.
XT XT
ROW
(R1 to R4, Vx)
COLUMN
(C1 to C4)
DTMF
KEYBOARD
INTERFACE
D/A
CONVERTER
LOCATION
LATCH
ROW & COLUMN
PROGRAMMABLE
COUNTER
- 4 -
READ/WRITE
COUNTER
RAM
DATA LATCH
& DECODER
SYSTEM CLOCK
GENERATOR
CONTROL
LOGIC
PULSE
CONTROL
LOGIC
HKS
HFI
MODE
KT
T/P MUTE
DP
HFO
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FUNCTIONAL DESCRIPTION
HFI
¡õ
HFI
¡õ
HFI
¡õ
HFI
¡õ
Keyboard Operation
C1 C2 C3 C4
1 2 3 SAVE R1
4 5 6 F1 R2
7 8 9 F2 R3
W91510N SERIES
∗/T
0 # R/P1 R4
R/P2 R F3 F4 VX
• R/P1, R/P2: Redial and pause function key; P1 is 3.6 sec. and P2 is 2.0 sec.
• ∗/T: ∗ in tone mode and P→T in pulse mode
• F1, ..., F4: Flash keys, flash break time of F1 = 600 mS, F2 = 100 mS, F3 = 300 mS, F4 = 73 mS
• SAVE: Save function key
• R: One-key redial function
Notes:
D1, ..., Dn, D1', ..., Dn': 0, ..., 9, */T, #
R/P: R/P1 or R/P2.
Fn: F1, ..., F4
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.
), D1 , D2 , ..., Dn
Redialing
1. OFF HOOK (or ON HOOK &
), D1 , D2 , ..., Dn , Busy,
Come ON HOOK , OFF HOOK (or ON HOOK &
), R/P
a. The redial memory content will be dialed out.
b. The R/P key can execute the redial function only as the first key-in after off-hook; otherwise, it
executes pause function.
c. If redialing length exceeds 32 digits, the redialing function will be inhibited.
2. OFF HOOK (or ON HOOK &
), D1 , D2 , ..., Dn , Busy, R
a. The one-key redialing function timing diagram is shown in Figure 4.
Publication Release Date: May 1997
- 5 - Revision A2
Page 6
W91510N SERIES
HFI
¡õ
HFI
¡õ
HFI
¡õ
b. If the dialing of D1 to Dn is finished, pressing the R key will cause the pulse output
pin
to go low for 2.2 seconds break time and 0.6 seconds pause time will automatically be added.
c. If the pulses of the dialed digits D1 to Dn have not finished, R will be ignored.
d. The redial function by R key has no break time (2.2 sec.) if it is the first key-in after off-hook.
e. The R key uses the same redial buffer as the redial function by
the
and it is active during normal dialing or repertory dialing.
R/P1 or R/P2 key,
Access Pause
OFF HOOK (or ON HOOK &
1. The pause function is executed in normal dialing, redial dialing, or memory dialing.
2. The pause duration of 2.0 or 3.6 seconds per pause is selected by keypad, but only one pause time
can be stored in memory.
3. A detailed timing diagram for the pause function is shown in Figure 5.
), D1 , D2 , R/P , D3 , ..., Dn
Pulse-to-tone (*/T)
OFF HOOK (or ON HOOK &
D2' , ..., Dn'
1. If the mode switch is set to pulse mode, then the output signal will be:
D1, D2, …, Dn, Pause (2.0 sec. or 3.6 sec.), D1', D2', …, Dn'
(Pulse) (Tone )
2. If the mode switch is set to tone mode, then the output signal will be:
D1, D2, ..., Dn, *, D1', D2', ..., Dn'
(Tone) (Tone)
), D1 , D2 , ..., Dn , */T , D1' ,
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 6.
Save
OFF HOOK (or ON HOOK &
a. D1, D2, ..., Dn will be dialed out.
b. If the sequence of the dialed digits D1, D2, ..., Dn has not
finished,
), D1 , D2 , ..., Dn , SAVE
SAVE will be ignored;
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Page 7
otherwise, D1, D2, ..., Dn will be duplicated to the save memory.
HFI
¡õ
Flash
W91510N SERIES
OFF HOOK (or ON HOOK &
1. Fn = F1, ..., F4
2. The dialer will execute a flash break time of 600 mS (F1), 100 mS (F2), 300 mS (F3), or 73 mS
(F4). In each case, the flash pause time is 1.0 sec. before
the next digit is dialed out.
3. Flash key cannot be stored as a digit in memory. The flash key has first priority among keyboard
functions.
4. The system will return to the initial state after the flash pause time is finished.
5. The flash function timing diagram is shown in Figure 7.
), Fn
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATING UNIT
DC Supply Voltage
Input/Output Voltage VIH VDD +0.3 V
Power Dissipation PD 120 mW
VDD−VSS
VIL VSS -0.3 V
VOL VSS -0.3 V
VOH VDD +0.3 V
-0.3 to +7.0 V
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.
Publication Release Date: May 1997
- 7 - Revision A2
°C
°C
Page 8
W91510N SERIES
HKS
HKS
DP
MUTE
HKS
DC CHARACTERISTICS
(VDD−VSS = 2.5V, FOSC. = 3.579545 MHz, TA = 25° C, All outputs unloaded)
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Operating Voltage VDD - 2.0 - 5.5 V
Operating Current IOP Tone, Unloaded - 0.4 0.6 mA
Pulse, Unloaded - 0.2 0.4
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
KT Drive/Sink Current IKTH VKTH = 2.0V 0.5 - - mA
Output Sink
IMR
ITL VTO = 0.5V 0.2 - - mA
IPL VPO = 0.5V 0.5 - - mA
ITML VTMO = 0.5V 0.5 - - mA
IKTL VKTL = 0.5V 0.5 - - mA
= 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 mVrm
1 2 3 dB
- -30 -23 dB
1.0 - 3.0 V
µA
µA
s
HFO Drive/Sink IHFH VHFH = 2.0V 0.5 - - mA
Current
Keypad Input Drive
Current
Keypad Input Sink
Current
I/P Pull-high
Resistor
Keypad Resistance RK - - - 5
IHFL VHFL = 0.5V 0.5 - - mA
IKD VI = 0.0V 30 - -
IKS VI = 2.5V 200 400 -
RHK - - 300 -
- 8 -
µA
µA
KΩ
KΩ
Page 9
W91510N SERIES
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
On-hook Debounce TOHD - - 150 - mS
Pre-digit Pause
Pre-digit Pause
Interdigit Pause TIDP 10 ppS - 800 - mS
(Auto Dialing) 20 ppS - 500 -
Make/Break Ratio M:B Mode = VDD - 40:60 - %
1
TPDP1 Mode = VDD - 40 - mS
10 ppS Mode = Floating - 33.3 -
2
TPDP2 Mode = VDD - 20 - mS
20 ppS Mode = Floating - 16.7 -
Mode = Floating - 33.3:
-
66.7
Tone Output Duration TTD Auto dialing - 93 - mS
Intertone Pause TITP Auto dialing - 93 - mS
Flash Break Time TFB F1 - 600 -
F2 - 100 - mS
F3 300
F4 - 73 Flash Pause Time TFP F1, F2, F3, F4 - 1.0 - S
Pause Time TP R/P1 - 3.6 - S
R/P2 - 2.0 Key Tone Frequency
Key Tone Duration
FKT - - 600 - Hz
TKTD - - 35 - mS
One-key Redial Break Time TRB - - 2.2 - S
One-key Redial Pause Time TRP - - 600 - mS
Notes:
1. Crystal parameters suggested for proper operation are Rs < 100 Ω, 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.
Publication Release Date: May 1997
- 9 - Revision A2
Page 10
TIMING WAVEFORMS
HKS
KEY IN
DP
T/P MUTE
KT
W91510N SERIES
T
3
T
KID
4
IDP
BM
T
PDP
T
2
M B
T
IDP
T
IDP
KRD
2
T
KID
T
IDP
T
PDP
DTMF
OSC.
HKS
KEY IN
T/P MUTE
DTMF
DP
KT
Low
OSCILLATION OSCILLATION
Figure 1(a) Normal Dialing Timing Diagram
T
R/P
M
KRD
T
KID
M
B
T
PDP
T
IDP
B
T
IDP
Low
T < T
T
OHD
IDP
OSC.
OSCILLATION
Figure 1(b) Pulse Mode Auto Dialing Timing Diagram
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Timing Waveform, continued
W91510N SERIES
HKS
KEY IN
T/P MUTE
DTMF
OSC.
HKS
KEY IN
DTMF
T/P MUTE
DP
KT
T
KRD
T
KID
M
IDP
B
T
PDP
T
M
R/P
B
Low
OSCILLATION
Figure 1(c) Pulse Mode Auto Dialing Timing Diagram
T
43
KID
T
TD
2
T
ITP
T
ITP
T > T
5
OHD
T
KRD
T
ITP
DP
OSC.
KT
High
OSCILLATION
Figure 2(a) Tone Mode Normal Dialing Timing Diagram
Publication Release Date: May 1997
- 11 - Revision A2
OSCILLATION
Page 12
Timing Waveform, continued
OSCILLATION
W91510N SERIES
HKS
KEY IN
DTMF
T/P MUTE
OSC.
HKS
KEY IN
DTMF
T/P MUTE
KT
DP
T < T
T
KRD
OHD
R/P
T
KID
T
TD
T
ITP
High
Figure 2(b) Tone Mode Auto Dialing Timing Diagram
T > T
R/P
T
KRD
T
KID
T
TD
T
ITP
OHD
T
ITP
OSC.
KT
DP
High
OSCILLATION
Figure 2(c) Tone Mode Auto Dialing Timing Diagram
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Timing Waveform, continued
OSCILLATION
W91510N SERIES
T/P MUTE
CHIP ENBLE
HKS
KEY IN
DP
HFI
HKS
HFI
HFO
Figure 3. Handfree Timing diagram
R R
T
T
KID
B
M
T
PDP
KID
T
IDP
ON HOOK
High
T
RB
T
IDP
B
M
T
RP
T
PDP
HFO
T/P MUTE
KT
DTMF
OSC.
Low
Figure 4. One-key Redial Timing Diagram
Publication Release Date: May 1997
- 13 - Revision A2
Page 14
Timing Waveform, continued
HKS
KEY IN
DP
T/P MUTE
KT
W91510N SERIES
2
R/P
T
KID
BM
T
PDP
3
T
IDP
M
B
T
T
P
PDP
DTMF
OSC.
HKS
KEY IN
T/P MUTE
DP
KT
Low
OSC
Figure 5. Pause Function Timing Diagram
2
*/T 3
T
KID
BM
T
PDP
T
IDP
T
P
DTMF
OSC.
OSCILLATION
Figure 6. Pulse-to-tone Timing Diagram
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Page 15
Timing Waveform, continued
W91510N SERIES
HKS
KEY IN
HFI
HFO
T/P MUTE
KT
DTMF
OSC.
DP
Low
F
T
KID
T
F
FB
T
KID
OSCILLATION
F
T
FB
3
T
FP
T
KID
T
ITP
Figure 7. Flash Timing Diagram
Publication Release Date: May 1997
- 15 - Revision A2
Page 16
W91510N 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: 852-27516023
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.
- 16 -
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
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