Datasheet W91811AN, W91811ALN, W91810N, W91810LN, W91810AN Datasheet (Winbond Electronics)

W91810N SERIES

23-MEMORY TONE/PULSE DIALER WITH

HANDFREE, LOCK AND HOLD FUNCTIONS

GENERAL DESCRIPTION

The W91810N is a series of tone/pulse switchable telephone dialers with 23 memory, keytone, hold,
lock, mute, volume control and handfree dialing control features. These chips are fabricated using
Winbond's high-performance CMOS technology and thus offer good performance in low-voltage, low­power operations.

FEATURES

• Tone/pulse switchable dialer

• Two by 32 digits redial and save memory

•

Three by 32 digits one-touch direct repertory memory

• Twenty by 32 digits one-touch direct or two-touch indirect repertory memory

• Pulse-to-tone (*/T) keypad for long distance call operation

• Chain dialing

• Uses 6

• Easy operation with redial, flash, pause, and */T keypads

• Pause, P

• Dialing rate: 10 or 20 ppS by mask option

• Minimum tone output duration: 93 mS

• Minimum intertone pause: 93 mS

• Pause time: 3.6 sec.

•

Flash break time (73 mS, 100 mS, 300 mS, or 600 mS) selectable by keypad; pause time is 1.0 S

• Make/break ratio (2:3 or 1:2) selectable by MODE pin

• Mute key for speech network mute

• No key will be accepted except the "HOLD" key when in the Hold mode

• 4-level volume control by V1 and V2 pin - default value is zero

• Key tone output for valid keypad entry recognition

• On-chip power-on reset

• Uses 3.579545 MHz crystal or ceramic resonator

• 22, 24 or 28-pin dual-in-line plastic package

•

The different dialers in the W91810N series are shown in the following table:

×

6 or 7 × 7 keyboard

→

T (pulse-to-tone) can be stored as a digit in memory

TYPE NO. PULSE

(ppS)

W91810N 10 13 one touch, 10 two touch ­W91810AN 10 13 one touch, 10 two touch ­W91810LN 10 13 one touch, 10 two touch
W91810ALN 10 13 one touch, 10 two touch
W91811AN 10 23 one touch ­W91811ALN 10 23 one touch
W91812N 20 13 one touch, 10 two touch ­W91812AN 20 13 one touch, 10 two touch ­W91813AN 20 23 one touch -

MEMORY LOCK KEY

√
√

-

√

-

√
√
√

HANDFREE

DIALING

- - 22

√

√
√
√

- - 22

√
√

TONE

- - - 22

√
√

√

VOLUME

CONTROL

- 24

- 24

√
√

- 24

√

PACKAGE

(PINS)

28
28

28

Publication Release Date: March 2000

- 1 - Revision A5

PIN CONFIGURATIONS

1

KT

H/P MUTE

XT
XT

T/P MUTE

C1
C2
C3
C4

C5

SSV

2
3
4

5
6
7

8
9

10

11

W91810N/812N

22
21

20

19
18
17

16
15

14
13
12

R6
R4

R3

R2

R1
K MUTE

DDV

MODE

DTMF

DP

HKS

KT

H/P MUTE

V

T/P MUTE

HFI

1

C1

2

C2

3

C3

4

C4

5

C5

6
7

SS

8

XT

9

XT

10
11
12

W91810AN/812AN

W91810N SERIES

1

C1

2

R6

24

R4

23
22

R3

21

R2

20

R1

19

K MUTE

DDV

18

MODE

17

DTMF

16

DP

15

14

HKS

13

HFO

C2

3

C3

4

C4

5

C5

6

C6

KT

7

H/P MUTE

T/P MUTE

8

V

SS

9

XT

10

XT

11
12
13

HFI
V1 V2

14

W91811AN/813AN

R7

28
27

R6
R4

26

R3

25

R2

24

R1

23
22

K MUTE

V

DD

21

MODE

20

DTMF

19

DP

18

HKS

17
16

HFO

15

LOCK

H/P MUTE

V

XT

XT

T/P MUTE

C2
C3
C4
C5

C1

SS

1
2

3
4

5
6
7

8
9

10

11

W91810LN

1

C1

2

1

C1

R6

22

R4

21
20

R3

19

R2

18

R1

17

K MUTE

V

16

DD

MODE

15

DTMF

14

DP

13

HKS

12

LOCK

H/P MUTE

T/P MUTE

2

C2

3

C3

4

C4

5

C5

6
7

V

8

SS

XT

9

10

XT

11
12

HFI HFO

24

R6
R4

23

R3

22
21

R2

20

R1

19

K MUTE
V

18

DD

MODE

17

DTMF

16

DP

15

14

HKS

13

W91810ALN

C2

3

C3

4

C4

5

C5

6

C6

LOCK

H/P MUTE

T/P MUTE

7
8

V

SS

9

XT

10

XT

11
12
13

HFI
V1 V2

14

W91811ALN

R7

28
27

R6

26

R4

25

R3

24

R2
R1

23
22 K MUTE

V

DD

21
20

MODE

19

DTMF

18

DP

17

HKS

16

HFO

15

- 2 -

PIN DESCRIPTION

6

XT

MUTE

MUTE

MUTE

MUTE

HKS

HKS

HKS

HKS

HKS

W91810N SERIES

SYMBOL 22-PIN 24-PIN 28-PIN I/O

Column-

Row Inputs

XT 9 9 10 I A built-in inverter together with an inexpensive

T/P

K

MODE 15 17 20 I Connecting the mode pin to VSS places the dialer

1−5

&

18−22

10 10 11 O Crystal oscillator output pin.
11 11 12 O

17 19 22 O

12 14 17 I

1−5

&

20−24

−

1

&

23−28

I The keyboard input is compatible with a standard

6 × 6 or 7 × 7 keyboard, an inexpensive single
contact (Form A) keyboard, and electronic input.

In normal operation, any single button can be
pushed to produce dual tone, pulses, or functions.
Activation of two or more buttons will result in no
response except for a single tone.

3.579545 MHz crystal supplies the oscillator. The
oscillator stops when there is no keypad input.
The crystal frequency deviation is 0.02%.

The T/P
channel open drain output.

The output transistor turns on with a low level
during a dialing sequence (both pulse and tone
mode). Otherwise, it is off.

The K
open drain output.

Toggle action speech mute control pin by MUTE
key.

in tone mode.
Connecting the mode pin to VDD places the dialer

in pulse mode with an M/B ratio of 40:60.
Leaving the mode pin floating places the dialer in

pulse mode with an M/B ratio of 33.3:66.7.
The

whether the handset is on-hook or off-hook.

(hook switch) input is used to sense

FUNCTION

is a conventional CMOS N-

is a conventional CMOS N-channel

In on-hook state,
mode, no operation.

In off-hook state,
normal operation.

pin is pulled to VDD by internal resistor.

Publication Release Date: March 2000

- 3 - Revision A5

= 1: chip is in sleeping

= 0: chip is enabled for

Pin Description, continued

LOCK

LOCK

DP

W91810N SERIES

SYMBOL 22-PIN 24-PIN 28-PIN I/O

KT

(W91810N/81
0AN/812N/812
AN/811AN/813
AN only)

(W91810LN/
810ALN/
811ALN only)

6

6 6 7 I The function of this terminal is to prevent "0"

6

7 O The key tone output is a conventional CMOS

inverter. The key tone is generated when any valid
key is pressed; the KT pin generates a 1.2 KHz
square wave at 35 mS. When no key is pressed,
the KT pin remains in low state.

dialing 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

FUNCTION

key, become invalid and the chip generates no
output. The telephone is reinitialized by a reset.

The function of the

LOCK PIN

V

DD

Floating

V

SS

"0", "9" dialing inhibited

Normal dialing Mode

"0" dialing inhibited

pin is shown below:

FUNCTION

H/P MUTE 7 7 8 I The H/P MUTE is a conventional inverter output.

During pulse dialing, flash break or hold period,
this output is active high; otherwise, it remains in
low state.

13 15 18 O N-channel open drain dialing pulse output.

Flash key will cause DP to be active in either tone
mode or pulse mode.

In lock mode, the DP remains low for 300 mS
during off-hook delay time.

The timing diagram for pulse mode is shown in
Figure 1(a, b).

- 4 -

W91810N SERIES

HFI

HFI

HFI

Pin Description, continued

SYMBOL 22-PIN 24-PIN 28-PIN I/O FUNCTION

DTMF 14 16 19 O

During pulse dialing, this pin remains in a low state
regardless of the keypad input. In tone mode, it will
output a dual or single tone.

A detailed timing diagram for tone mode is shown in
Figure 2(a, b).

OUTPUT FREQUENCY

R1
R2
R3
R4
C1
C2
C3

Specified

697
770
852

941
1209
1336
1477

Actual

699
766
848

948
1216
1332
1472

Error %
+0.28

-0.52

-0.47

+0.74

+0.57

-0.30

-0.34

VDD, VSS 16, 8 18, 8 21, 9 I

Power input pins for the dialer chip. VDD is the power
and VSS is the ground.

V1, V2 - - 14, 15 O Volume control output pins. These two pins can be

toggled by the volume control keys (Vup, Vdown).
These two pins output is a conventional CMOS N­channel open drain output.

, HFO

- 12, 13 13, 16 I, O Handfree control pins.
A low pulse on the

input pin toggles the handfree
control state. The status of the handfree control state
is listed in the following table:

CURRENT STATE NEXT STATE

HOOK SW.

On Hook
Off Hook
On Hook
Off Hook
Off Hook

The

INPUT

HFO

-

Low
High
High

-

Low
High

HFI
HFI
HFI

Off Hook
On Hook

On Hook

pin is pulled to VDD by an internal resistor.

HFO

High
Low
Low
Low

Low
High

DIALING

Yes

No
Yes
Yes

No
Yes

A detailed timing diagram is shown in Figure 3.

Publication Release Date: March 2000

- 5 - Revision A5

BLOCK DIAGRAM

W91810N SERIES

XT XT

ROW

(R1 ~ R7)

COLUMN
(C1 ~ C6)

DTMF

KEYBOARD

INTERFACE

D/A

CONVERTER

LOCATION

LATCH

ROW & COLUMN

PROGRAMMABLE

COUNTER

READ/WRITE

COUNTER

FUNCTIONAL DESCRIPTION

Keyboard Operation

C1 C2 C3 C4 C5 VSS

1 2 3 S M0 EM1 R1
4 5 6 F4 M1 EM2 R2
7 8 9 Page M2 EM3 R3

*/

T

F1 F2 F3 H M4 VX/R5

M5 M6 M7 M8 M9 MUTE R6

C1 C2 C3 C4 C5 C6 VSS

1 2 3 S M0 M10 EM1 R1
4 5 6 F4 M1 M11 EM2 R2
7 8 9 Page M2 M12 EM3 R3

*/

T

F1 F2 F3 H M4 M14 Vx/R5

M5 M6 M7 M8 M9 R MUTE R6

M15 M16 M17 M18 M19 Vup Vdown R7

• S: Store function key

0 # R/P M3 SAVE R4

0 # R/P M3 M13 SAVE R4

HKS

RAM

HFI

DATA LATCH

& DECODER

SYSTEM CLOCK

GENERATOR

CONTROL

LOGIC

PULSE

CONTROL

LOGIC

LOCK

MODE

T/P MUTE

KT

DP
HFO

H/P MUTE

K MUTE

V1

V2

- 6 -

W91810N SERIES

HFI

HFI

HFI

HFI

• Page: Indirect repertory memory dialing function key

• H: Hold function key

• R: One key redial function key

• R/P: Redial and pause function key

• */T: * in tone mode and P

• SAVE: Save function key for one-touch 32-digit memory

• MUTE: Mute function key for speech mute

−

• M0

M9: One touch memory. The dialing number can be stored in M0−M9 locations by the S key.
Note that the two touch memory (Page+ 0... Page+9) share the same memory buffer with
M10−M19, respectively

• M10, ..., M19: One touch or two touch memory keys. If there are no M10

Page+(M0−M9) can be used to simulate M10−M19.

• EM1, ..., EM3: Emergency one-touch memory key

• A: Indiect repertory dialing function key

• F1, ..., F4: Flash function keys: F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS; all flash

pause time is 1.0 S

→

T key in pulse mode

−

M19 keys,

Note: D1, ..., Dn, D1`, ..., Dn`, */T, #, Mm: M0, ..., M9, Mn: M0, ..., M19, Ln: 0−9

PAGE + LN = PAGE + Mm = M10−M19

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 oversteps 32 digits in normal dialing.

), D1 , D2

, …,

Dn

Redialing Dialing

1. OFF HOOK (or ON HOOK &

Come ON HOOK , OFF HOOK (or ON HOOK &

The R/P key can execute redial function only as first key-in after off-hook. Otherwise, it will invoke
the pause function.

2. OFF HOOK (or ON HOOK &
a. The one-key redial function timing diagram is shown in Figure 5.

b. If dialing of D1 to Dn is finished, pressing R key will cause the pulse output pin to

go low for 2.2 seconds break time and a 600ms pause will automatically be added.

, D1 , D2

, …,

), R/P

), D1 , D2 , ..., Dn , R

Dn , BUSY

Publication Release Date: March 2000

- 7 - Revision A5

W91810N SERIES

HFI

HFI

or

HFI

or

HFI

HFI

HFI

c. If the pulses of the dialed number D1

3. OFF HOOK (or ON HOOK &

come, OFF HOOK , OKR (or R/P )

to

Dn have not finished, R will be ignored.

), D1 , D2 , ..., Dn , Busy ON HOOK

If R is the first key after OFF HOOK, it only can execute the redialing function but will not cause

the pulse output pin to go low for the break time of 2.2 seconds.

Number Store

1. OFF HOOK (or ON HOOK &

Mn (or PAGE , Ln or EMn or SAVE

), D1 , D2 , ..., Dn , S , S ,

PAGE , Mm )

a. The dialing out of D1 to Dn must first be finished before the S key is pressed.

b. D1, D2, …, Dn will be stored in memory location Mn or saved and then dialed out.

2. OFF HOOK (or ON HOOK &

Mn (or Ln or EMn or SAVE

), S , D1 , D2 , ..., Dn , S ,

PAGE , Mm )

a. D1, D2, …, Dn will be stored in memory location, Mn (or saved), but will not be dialed out.

b. R/P and */T keys can be stored as a digit in memory, but the R/P key cannot be the
first digit. In store mode, R/P is the pause function key.

c. The store mode is released after the store function is executed or when the state of the hook
switch changes or the flash function is executed.

Save

OFF HOOK (or ON HOOK &

a. D1, D2, ..., Dn will be dialed out.

b. If the dialing of D1 to Dn is finished, pressing SAVE will duplicate D1 to Dn to the save

memory.

OFF HOOK (or ON HOOK &

come on OFF HOOK (or ON HOOK &

c. D1 to Dn will be dialed out after the SAVE key is pressed.

), D1 , D2 , ..., Dn , SAVE

),

), SAVE

- 8 -

Repertory Dialing Procedure

HFI

HFI

HFI

HFI

HFI

One-touch direct repertory dialing:

W91810N SERIES

OFF HOOK (or ON HOOK &

Two-touch direct repertory dialing:

OFF HOOK (or ON HOOK &

), Mn (or EMn or SAVE )

), Page , Ln (or Mn )

Access Pause

OFF HOOK (or ON HOOK &

1. The pause function can be stored in memory.

2. The pause function is executed with normal dialing, redialing or memory dialing.

3. The pause function timing diagram is shown in Figure 6.

), D1 , D2 , R/P , D3 , ..., Dn

Pulse-to-tone (*/T)

OFF HOOK (or ON HOOK &

, D2' , ..., Dn'

1. If the mode switch is set in pulse mode, then it will perform
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:
D1, D2, ---, Dn, * , D1', D2', ---, Dn'

(Tone) (Tone)

3. It can be reset to pulse mode only if ON HOOK is active. This is because it remains in tone mode
when the digits have been dialed out.

4. The function timing diagram is shown in Figure 7.

), D1 , D2 , ..., Dn , */T , D1' ,

Flash

OFF HOOK (or ON HOOK &

1. Fn = F1−F4. If
(F2), 73 mS (F3) or 100 mS (F4) and a pause time of 1.0 second, after which the next digit is dialed

out.

2. The flash key has the first priority of the keyboard function only one flash key will be released to
the user.

3. When the flash key is key in, the system will return to the initial state after the flash pause time is
finished.

4. The flash function timing diagram is shown in Figure 8.

- 9 - Revision A5

Fn is pressed, the dialer will execute a flash break time of 600 mS (F1), 300 mS

), Fn

Publication Release Date: March 2000

Cascaded Dialing

HFI

W91810N SERIES

OFF HOOK (or ON HOOK &

)

1. Normal Dialing + Repertory Dialing + Normal Dialing

(1st sequence) (2nd sequence)

2. Repertory Dialing + Normal Dialing + Repertory Dialing

(1st sequence) (2nd sequence)

3. Redialing + Normal Dialing + Repertory Dialing

(1st sequence) (2nd sequence)
Redialing is valid only for the first key-in.

The second sequence should not be operated until the first sequence is dialed out completely.

Mute

OFF HOOK , MUTE

MUTE has an on/off toggle function.

ABSOLUTE MAXIMUM RATING

PARAMETER SYMBOL RATING UNIT

DC Supply Voltage VDD-VSS -0.3 to +7.0 V
VIL V
Input/Output Voltage VIH V
VOL V
VOH V

SS

-0.3 V

DD

+0.3 V

SS

-0.3 V

DD

+0.3 V
Power Dissipation PD 120 mW
Operation Temperature T
Storage Temperature T

Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.

OPR

-20 to +70

STG

-55 to +150

°

C

°

C

- 10 -

W91810N SERIES

HKS

HKS

DP

MUTE

MUTE

HKS

DC CHARACTERISTICS

DD

SS

(V

V

= 2.5V, Fosc. = 3.58 MHz, TA = 25° C, all outputs unloaded)

−

PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT

Operating Voltage VDD - 2.0 - 5.5 V
Operating Current IOP Tone - 0.4 0.6 mA
Pulse - 0.2 0.4 mA
Standby Current ISB

= 0, No load &

No key entry

Memory Retention Current IMR
Tone Output Voltage VTO

Pre-emphasis
DTMF Distortion THD

Row group, RL = 5 KΩ
Col/Row, VDD = 2.0−5.5V

L

R

= 5 KΩ,

= 1, V

DD

= 1.0V

VDD = 2.0−5.5V

DTMF Output DC Level V

TDC

L

R

= 5 KΩ,

VDD = 2.0−5.5V

DTMF Output Sink Current ITL V

Output Sink Current

T/P

Output Sink

IPL V
IML V

TO

= 0.5V 0.2 - - mA

PO

= 0.5V 0.5 - - mA

MO

= 0.5V 0.5 - - mA

Current
KT Drive/Sink Current I
I
HFO Drive/Sink Current I
I

K

Sink Current
H/P MUTE I
Drive/Sink Current I

KTH

KTL

HFH

HFL

KML

I

HPH
HPL

V

V

V

V

V

V

V

KTH

= 2.0V 0.5 - - mA

KTL

= 0.5V 0.5 - - mA

HFH

= 2.0V 0.5 - - mA

HFL

= 0.5V 0.5 - - mA

KML

= 0.5V 0.5 - - mA

HPH

= 2.0V 0.5 - - mA

HPL

= 0.5V 0.5 - - mA

Keypad Input Drive Current IKD VI = 0V 4 - -

Pull High Resister

RHKS 300 500 -

Keypad Input Sink Current IKS VI = 2.5V 200 400 ­Keypad Resistance - - 5.0

- - 15

- - 0.2

130 150 170

mVrms

1 2 3 dB

- -30 -23 dB

1.0 - 3.0 V

KΩ

KΩ

µ

A

µ

A

µ

A

µ

A

Publication Release Date: March 2000

- 11 - Revision A5

W91810N SERIES

AC CHARACTERISTICS

PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT

Key-in Debounce T
Key Release Debounce T
On-hook Debounce T
Unlock Mode - 150 - mS

Pre-digit Pause1
10 ppS Mode Pin = Floating - 33.3 - mS

Pre-digit Pause2
20 ppS Mode Pin = Floating - 16.7 - mS
Inter Digit Pause
(Auto Dialing)

20 ppS

Interdigit Pause T
(Auto dialing) 20 ppS - 500 - mS
Make/Break Ratio M:B Mode Pin = VDD - 40:60 - %
Mode Pin = Floating - 33.3:66.7 - %
Tone Output Duration TTD - - 93 - mS
Intertone Pause T
Flash Break Time TFB F1 - 600 - mS
F2 - 300 -
F3 - 73 -
F4 - 100 -
Flash Pause Time TFP - - 1.0 - S
Pause Time TP - - 3.6 - S
Key Tone Frequency FKT - - 1.2 - KHz
Key Tone Duration T
One-key Redialing

Pause Time
One-key Redialing

Break Time
First Key-in Delay T

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.

KID

- - 20 - mS

KRD

- - 20 - mS

OHD

Lock Mode - 20 - mS

PDP1

T

Mode Pin = VDD - 40 - mS

PDP2

T

Mode Pin = VDD - 20 - mS

IDP

T

10 ppS

(Unless W91810N/ W91810AN/
810LN/810ALN/811AN/811ALN

only

)

- 800 - mS

- 500 - mS

(W91812N/812AN/813AN only)

IDP

10 ppS - 800 - mS

ITP

- - 93 - mS

KTD

- - 35 - mS

TRP - - 600 - mS

TRB - - 2.2 - S

FKD

Lock only - 300 - mS

- 12 -

VOLUME CONTROL FLOW CHART

V2 = 1

Volume initial

data: V1 = 0,

On line

Yes

Off-hook

?

In handset

mode

Volume set

W91810N SERIES

In handfree

mode

Vol-set1:

V1 = 0,

V2 = 1

No

No

Hold

release by

handfree

?

Yes

Volume

set

In handfree

mode

In hold mode

Volume data

can't be changed

, and will out

handfree data

In hold mode

In handset

mode

Vol-set2:

V1 = 0,

V2 = 1

Publication Release Date: March 2000

- 13 - Revision A5

Volume Control Flow Chart, continied

Volume initial
data: V1 = 0, V2 = 0

No

Chip Enable

?

Yes

W91810N SERIES

No

Hand-free

?

Yes

In hand-free mode

Press Vup or
Vdown keys

Volume setting

OK ?

No

No

In handset mode

Yes

Switch to
handset ?

Press Vup or
Vdown keys

NoYes

Yes

Volume setting

OK ?

Yes

Press hand-free

key ?

No

- 14 -

TIMING WAVEFORMS

4 2 T

B

T

T

T

T

T

T

2

HKS

KEY IN

DP

T/P MUTE

B

LOW OSC.

OSC.

H/ P MUTE

DTMF

OSC.

KT

2

<300 mS

T

FKD

W91810N SERIES

HKS

KEY IN

T/P MUTE

DP

KID

Figure 1(a) Pulse Mode Tming Diagram (Normal dialing without lock)

4

B

PDP

M

IDP

M

M

IDP

B

T

IDP

KID

PDP

IDP

2

T

KID

T

T

IDP

PDP

H/P MUTE

KT

DTMF

OSC.

Figure 1(b) Pulse Mode Timing Diagram (Normal dialing with lock function)

- 15 - Revision A5

LOW

OSC.

Publication Release Date: March 2000

OSC.

Timing Waveforms, continued

R/P

B M

T

IDP

T

IDP

T

PDP

T

IDP

T

PDP

H/P MUTE

DTMF

OSC.

ON HOOK

KT

M B

KEY IN

DP

T/P MUTE

HKS

R/P

T

T

T

LOW

OSC.

H/P MUTE

DTMF

OSC.

KT

<300 mS

T

HKS

KEY IN

DP

T/P MUTE

W91810N SERIES

LOW

OSC.

Figure 1(c) Pulse Mode Timing Diagram (Auto dialing without lock)

Figure 1(d) Pulse Mode Timing Diagram (Auto dialing with lock function)

- 16 -

Timing Waveforms, continued

T

KID

T

TD

HIGH

OSC.

OSC.

DTMF

OSC. KT T

ITP

T

KRD

T

ITP

T

KRD

T

KID

T

ITP

T

KRD

LOW

3 2 6 5

H/P MUTE

DTMF

HKS KEY IN

T/P MUTE

HIGHTT

LOW

326

5

T

W91810N SERIES

Figure 2(a) Tone Mode Timing Diagram (Normal dialing without lock)

Figure 2(b) Tone Mode Timing Diagram (Normal dialing with lock function)

Publication Release Date: March 2000

- 17 - Revision A5

Timing Waveforms, continued

T

TD

HIGH

OSC.

T

ITP

LOW

R/P

ON HOOK

T

KID

T

ITP

T

T < T

OHD

DP

DTMF

OSC.

KT

H/P MUTE

HKS

KEY IN

T/P MUTE

T

HIGH

OSC.

LOW

R/P

T

T T < T

T

T

DP

DTMF

OSC.

KT

H/P MUTE

HKS

KEY IN

T/P MUTE

W91810N SERIES

Figure 2(c) Tone Mode Timing Diagram (Auto dialing without lock)

OHD

TD

FKD

Figure 2(d) Tone Mode Timing Diagram (Auto dialing with lock function)

ITP

ITP

- 18 -

Timing Waveforms, continued

KT

W91810N SERIES

HKS

KEY IN

DTMF

T/P MUTE

H/P MUTE

OSC.

T

T > T

OHD

(return to initial state)

DP

ON HOOK

R/P

T

T

TD

KID

OSC.

T

ITP

LOW

HIGH

Figure 2(e) Tone Mode Timing Diagram with On-hook Debounce (Auto dialing)

HKS

OFF HOOK

ON HOOK

HFI

H KEY

HFO

T/P MUTE

H/P MUTE

CHIP ENABLE

Note: The H KEY can not be enabled during chip dissable.

HIGH

LOW

Figure 3(a)

Publication Release Date: March 2000

- 19 - Revision A5

W91810N SERIES

HIGH

OFF HOOK

CHIP ENABLE

T/P MUTE

H/P MUTE

HKS

H KEY

HFI

HFO

Timing Waveforms, continued

Figure 3(b)

Note: The H KEY and HFI inputs will toggle the HFO signal. The first time HFI or H KEY are activated, the HFO signal will go
high and the previous active input will be neglected.

ON HOOK

HKS

HFI

H KEY

HFO

T/P MUTE

H/P MUTE

CHIP ENABLE

Note: The HKS signal change of state from high to low will initialize both the HFO and H/P MUTE signals.

HIGH

Figure 3(c)

- 20 -

Timing Waveforms, continued

HKS

KEY IN

DP

T/P MUTE

T

KID

W91810N SERIES

T<T

T

OHD

4

B

M

T

PDP

T

IDP

H/P MUTE

DTMF

OSC.

CHIP ENABLE

HKS

KEY IN

DP

T/P MUTE

KT

T

FKD

ON HOOK

OKR

T

KID

Figure 4 Lock Function Timing Diagram

T

RB

LOW

.

OSC

LOW

M

T

RP

B

T

PDP

T

IDP

T

FKD

T

OHD

OSC.

T

IDP

T

PDP

H/P MUTE

KT

DTMF

OSC.

Figure 5 Pulse Mode One-key Dedialing Timing Diagram

- 21 - Revision A5

LOW

OSC

Publication Release Date: March 2000

Timing Waveforms, continued

KT

KT

HKS

W91810N SERIES

KEY IN

DP

T/P MUTE

H/P MUTE

DTMF

OSC.

KEY IN

T/P MUTE

H/P MUTE

HKS

DP

DTMF

4 2

T

KID

B

T

PDP

M

R/P 2

T

IDP

LOW

OSC.

M

B

Figure 6 Pause Function Timing Diagram

4 2

T

KID

B

T

PDP

M

T

IDP

*/T 8

M

B

T

IDP

T

P

T

IDP

T

PDP

T

IDP

T

P

T

ITP

OSC.

OSC.

Figure 7. Pulse to Tone Function Timing Diagram

- 22 -

Timing Waveforms, continued

KT

W91810N SERIES

HKS

KEY IN

T/P MUTE

H/P MUTE

DTMF

OSC.

DP

Fn

T

KID

T

FB

OSC.

Figure 8 Flash Operation Timing Diagram

LOW

LOW

T

FP

Publication Release Date: March 2000

- 23 - Revision A5

W91810N SERIES

PAD LIST

PAD

NO.

10 OPTION -928.00 -175.00 26 ROW 2 24 790.60 995.80
11 VSS 9 -928.00 -379.20 27 ROW 3 25 610.10 995.80
12 OSCIN 10 -936.00 -880.70 28 ROW 4 26 445.10 995.80
13 OSCOUT 11 -866.50 -1055.20 29 ROW 5 27 264.60 995.80
14 TPMUTE 12 -647.50 -1055.00 30 ROW 6 28 99.60 995.80
15 HF1 13 -456.50 -1055.00
16 VOT<1> 14 -190.50 -1055.00

PAD

NAME

1 COL 1 1 -441.50 987.80 17 VOL<2> 15 172.70 -1008.00
2 COL 2 2 -606.50 987.80 18 HF0 16 355.20 -1008.00
3 COL 3 3 -787.00 987.80 19 HKSB 17 520.20 -1008.00
4 COL 4 4 -952.00 987.80 20 DPS 18 702.80 -1008.00
5 COL 5 5 -928.00 703.60 21 DTMF 19 914.60 -1027.60
6 COL 6 6 -928.00 538.60 22 MODE 20 942.60 -732.40
7 LOCK -928.00 345.00 23 VDD 21 942.60 -532.70
8 KT 7 -928.00 180.00 24 KMUTEB 22 961.80 -341.80
9 HPMUTE 8 -928.00 -10.00 25 ROW 1 23 968.40 975.30

PIN

NAM

E

X Y PAD

NO.

PAD

NAME

PIN

NAM

E

X Y

- 24 -

W91810N SERIES

Headquarters

No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: [phone]
FAX: [phone]
http://www.winbond.com.tw/
Voice & Fax-on-demand: 886-2-27197006

Taipei Office

11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: [phone]
FAX: [phone]

Note: All data and specifications are subject to change without notice.

Winbond Electronics (H.K.) Ltd.

Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: [phone]
FAX: [phone]

Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.

2727 N. First Street, San Jose,
CA 95134, U.S.A.
TEL: [phone]

FAX: [phone]

Publication Release Date: March 2000

- 25 - Revision A5

TYPICAL APPLICATION CIRCUIT

TIP

RV1
220V

RING

BR1 4004x 4

ON HOOK

HOOK SW

R11

330K

SW1

R10
1M

Q3 2N1815

OFF HOOK

R42
150K

D5

1N4148

470K

R12

R8
10M

R9 120K

D2

1N4148

R5

22K

R4 22K

W91810N SERIES

Q2

A92

R15

220K

R5

Q6

2N1815

R16

C4

220K Q7

D4

1N4148

22K

VDD

Q9

2N1815

LED

R7

2N1815

R3
1K

D6

22K

R6

R19
20K

2N1815

C12

1uF/50V

R20

2.2K

WE285

D7
3V

Q8

SPEECH

NETWORK

R1
1K

100u

Q1
A42

C1

D1

1N4148

R2
1K

D3

1N4148

D16

5.1V

Vx/R5

C9
100u

2N1815

R14 220K

C10

10u

Q4

C8

4.7u

R1833K

R17
100K

Q5

2N1815

R13
10K

C11

102

Vx/R5

1

2 3

4

5 6

7

8 9
0*/T

F1
M05
M15

#

F3

F2
M06 M07 M08 M09
M16 M17 M18 M19

C6 104

Page

F4

R/P

S

M00
M01

M02
M03

H

M04

M10
M11
M12
M13
M14
OKR

Vup

EM1
EM2
EM3

SAVE

MUTE

Vdown

R7

C1 C2 C3 C4 C5 C6 H/P MUTE V1

R2R3R4R6

R1

KT

"0,9"

PULSE

TONE

SW3

VDD

MODEK MUTE

W91810N Series

SW4

"0"

C2

30p

DTMF

XTAL

3.58MHz

DP HKS

T/P MUTELOCK VSS XT1 XT1

C3
30p

HFO V2

HFI

C7

0.1u

SW2

Handfree

VDD

- 26 -