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

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 -