Winbond Electronics W91F813AN, W91F812N, W91F812AN, W91F811AN, W91F811ALN Datasheet

W91F810N SERIES

23-FLASH MEMORY TONE/PULSE DIALER WITH

HANDFREE, LOCK AND HOLD FUNCTIONS

GENERAL DESCRIPTION

The W91F810N is a series of tone/pulse switchable telephone dialers with 23-falsh 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 low­voltage, low-power operations.

FEATURES

• Tone/pulse switchable dialer

• Two by 32 digits redial and save memory

• Three by 32 digits one-touch direct repertory flash-memory

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

• The read-write times: 10

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

• Chain dialing

• Uses 6

×

6 or 7 × 7 keyboard

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

• Pause, P

→

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

• 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-pin 400 mil, 24-pin 600 mil or 28-pin 600 mil dual-in-line plastic package

• The different dialers in the W91F810N series are shown in the following table:

TYPE NO. PULSE

W91F810N 10 13 one touch, 10 two touch ­W91F810AN 10 13 one touch, 10 two touch ­W91F810LN 10 13 one touch, 10 two touch
W91F810ALN 10 13 one touch, 10 two touch
W91F811AN 10 23 one touch ­W91F811ALN 10 23 one touch
W91F812N 20 13 one touch, 10 two touch ­W91F812AN 20 13 one touch, 10 two touch -

W91F813AN 20

(ppS)

4

FLASH-MEMORY LOCK KEY

23 one touch

TONE

√
√

√

-

HANDFREE

DIALING

√
√

- - - 22

-

√

-

√
√

√

- - 22

√

√
√
√

- - 22

√

√

VOLUME

CONTROL

- 24

- 24

√
√

- 24

28

√

PACKAGE

(PINS)

28
28

Publication Release Date: March 2000

- 1 - Revision A2

PIN CONFIGURATIONS

1

H/P MUTE

T/P MUTE

C1
C2
C3
C4

C5

KT

SS

V

XT
XT

2
3
4

5
6
7

8

9
10
11

W91F810N/F812N

R6

22

R4

21

20

R3

19

R2

R1

18
17

K MUTE

V

16
15

14
13
12

DD

MODE

DTMF

DP

HKS

C2
C3
C4
C5

H/P MUTE

V

T/P MUTE

HFI

1

C1

2
3
4

5
6

KT

7

SS

8

XT

9

10

XT

11
12

W91F810AN/F812AN

W91F810N SERIES

C1

1
2

H/P MUTE

V

T/P MUTE

HFI

C2

3

C3

4

C4

5

C5
C6

6

KT

7
8

SS

9

XT

10

XT

11
12
13

V1

14

R6

24

R4

23
22

R3

21

R2

20

R1

19

K MUTE

V

18
17

16
15

14
13

DD

MODE
DTMF

DP
HKS

HFO

W91F811AN/F813AN

R7

28
27

R6
R4

26

R3

25

R2

24

R1

23
22 K MUTE

V

21

DD

MODE

20

DTMF

19

DP

18

HKS

17
16

HFO

15

V2

C2
C3
C4
C5

LOCK

H/P MUTE

V

XT
XT

T/P MUTE

1

C1

2

1

C1

1

C1

2

3

4

5

6

7

8

SS

9
10
11

R6

22

R4

21

20

R3

19

R2

18

R1

17

K MUTE

V

16
15

14
13
12

DD

MODE
DTMF

DP

HKS

LOCK

H/P MUTE

V

XT

T/P MUTE

W91F810LN

2

C2

3

C3

4

C4

5

C5

6
7

8

SS

XT

9
10
11

12

HFI HFO

W91F810ALN

24

R6
R4

23

R3

22
21

R2

20

R1

19

K MUTE

V

18
17

16
15

14
13

DD

MODE
DTMF

DP
HKS

C2
C3
C4
C5
C6

LOCK

H/P MUTE

V

SS

XT

XT

T/P MUTE

HFI

V1

3
4

5
6
7

8

9
10
11

12
13

14

W91F811ALN

R7

28
27

R6

26

R4

25

R3

24

R2
R1

23

K MUTE

22

V

DD

21
20

MODE

19

DTMF

18

DP

17

HKS

16

HFO

15

V2

- 2 -

6

XT

MUTE

MUTE

MUTE

MUTE

HKS

HKS

HKS

HKS

HKS

W91F810N SERIES

PIN DESCRIPTION

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

Column-

Row

Inputs

1−5

&

18−22

1−5

&

20−24

−

1

&

23−28

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

T/P

K

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

17 19 22 O

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

is a conventional CMOS N-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

is a conventional CMOS N-channel

open drain output.
Toggle action speech mute control pin by MUTE

key.

MODE 15 17 20 I

Connecting the mode pin to VSS places the dialer
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.

12 14 17 I

The

(hook switch) input is used to sense

whether the handset is on-hook or off-hook.
In on-hook state,

= 1: chip is in sleeping

mode, no operation.
In off-hook state,

= 0: chip is enabled for

normal operation.

pin is pulled to VDD by internal resistor.

KT

(W91F810N/F8
10AN/F812N/F
812AN/F811AN
/F813AN only)

6

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.

Publication Release Date: March 2000

- 3 - Revision A2

Pin Description, continued

LOCK

LOCK

DP

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

(W91F810LN/
F810ALN/
F811ALN only)

W91F810N SERIES

6 6 7 I

The function of this terminal is to prevent "0"
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
key, become invalid and the chip generates no
output. The telephone is reinitialized by a reset.

The function of the

pin is shown below:

H/P MUTE 7 7 8 I

13 15 18 O

DTMF 14 16 19 O

LOCK PIN

V

DD

Floating

V

SS

FUNCTION

"0", "9" dialing inhibited

Normal dialing Mode

"0" dialing inhibited

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.

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).
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

- 4 -

W91F810N SERIES

HFI

HFI

HFI

Pin Description, continued

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

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

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

, HFO

- 12, 13 13, 16 I, O Handfree control pins.

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

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

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

HFO

Low
High
High

-

Low
High

INPUT

HFI
HFI
HFI

Off Hook
On Hook

On Hook

HFO

High
Low
Low
Low

Low
High

DIALING

Yes

No
Yes
Yes

No
Yes

The

pin is pulled to VDD by an internal resistor.

A detailed timing diagram is shown in Figure 3.

Publication Release Date: March 2000

- 5 - Revision A2

BLOCK DIAGRAM

W91F810N SERIES

XT XT

ROW

(R1 ~ R7)

COLUMN
(C1 ~ C6)

DTMF

KEYBOARD

INTERFACE

D/A

CONVERTER

LOCATION

LATCH

ROW & COLUMN

PROGRAMMABLE

COUNTER

HKS

HFI

READ/WRITE

COUNTER

RAM

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

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

- 6 -

W91F810N 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: Indirect 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 A2

W91F810N 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 -