Winbond Electronics W91511N, W91511AN, W91510N, W91510AN Datasheet

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)

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.

- 2 -

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

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

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