W91360N SERIES

3-MEMORY TONE/PULSE DIALER WITH

HANDFREE AND HOLD FUNCTIONS

Publication Release Date: May 1997

- 1 -

Revision A2

GENERAL DESCRIPTION

The W91360N series are tone/pluse switchable telephone dialers with three memories, hold function,
and a handfree dialing control circuit. Fabricated using CMOS technology, the W91360N series offer good
performance in low-voltage and low-power applications.

FEATURES

DTMF/pulse switchable dialer

Two by 32-digit redial and save memory

Three by 16-digit one-touch direct repertory memory

Cascaded dialing allowed, with unlimited dialing length

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

Uses 5

5 keyboard

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

Pause, P

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

On-hook debounce time: 150 msec.

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 W91360N series are shown in the following table:

TYPE NO.

REPLACEMENT

TYPE NO.

PULSE

(ppS)

FLASH

(mS)

M/B

HANDFREE

DIALING

PACKAGE

(PINS)

W91360N

W91360

600/300/73/100

W91360AN

W91360A

600/300/73/100

Yes

W91360N SERIES

- 2 -

PIN CONFIGURATIONS

T/P MUTE

HFI

HKS

DTMF

MODE

HFO

W91360AN

W91360N

T/P MUTE

HKS

DTMF

MODE

H/P MUTE

DP/C5

H/P MUTE

PIN DESCRIPTION

SYMBOL

18-PIN 20-PIN

I/O

FUNCTION

Column-

Row Inputs

The keyboard inputs may be used with either a standard 5

5 keyboard or an inexpensive single contact (Form A)
keyboard. Electronic input from a

C can also be used.

A valid key is defined as a single row being connected to a
single column.

XT, XT

7, 8

I, O

A built-in inverter provides oscillation with an inexpensive
3.579545 MHz crystal or ceramic resonator.

T/P

MUTE

The T/P MUTE is a conventional CMOS N-channel open
drain output.
The output transistor is switched on during dialing sequence
and flash break time. Otherwise, it is switched off.

MODE

Pulling mode pin to V

places the dialer in tone mode.

Pulling mode pin to V

places the dialer in pulse mode

(M/B = 40:60).
Floating mode pin places the dialer in pulse mode
(M/B = 33.3:66.7).

HKS

Hook switch input.

HKS = V

: On-hook state. Chip in sleeping mode, no

operation.

HKS = V

: Off-hook state. Chip enabled for normal

operation.

HKS pin is pulled to V

by an internal resistor.

W91360N SERIES

Publication Release Date: May 1997

- 3 -

Revision A2

Pin Description, continued

SYMBOL

18-PIN 20-PIN

I/O

FUNCTION

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).

, V

14, 6

16, 6

Power input pins.

DTMF

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).

Specified

Actual

Error %

OUTPUT FREQUENCY

697

770

852

941

1209

1336

1477

699

766

848

948

1216

1332

1472

+0.28

-0.52

-0.47

+0.74

+0.57

-0.30

-0.34

HFI, HFO

10, 11

I, O

Handfree control pins. The handfree control state is toggled

by a low pulse on the HFI input pin. The status of the
handfree control state is described in the following table:

CURRENT STATE

Input

HFO Dialing

High

Yes

On Hook

High

Low

Off Hook

High

Low

Yes

On Hook

Off Hook

Low

Yes

Off Hook

Low

On Hook

Low

Off Hook

High

On Hook

High

Yes

Low

Hook SW.

HFO

NEXT STATE

HFI

HFI pin is pulled to V

by an internal resistor.

Detailed timing diagram is shown in Figure 3.

H/P MUTE

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.

W91360N SERIES

- 4 -

BLOCK DIAGRAM

ROW

COLUMN

DTMF

RAM

COUNTER

SYSTEM CLOCK

GENERATOR

LOCATION

LATCH

D/A

ROW & COLUMN

PROGRAMMABLE

COUNTER

DATA LATCH

& DECODER

READ/WRITE

(R1 to R4, Vx)

(C1 to C4)

T/P MUTE

HFO

CONTROL

LOGIC

PULSE

CONTROL

LOGIC

KEYBOARD

INTERFACE

CONVERTER

MODE

HKS

HFI

DP/C5

H/P MUTE

FUNCTIONAL DESCRIPTION

Keyboard Operation

R/P

SAVE

S: Store function key

H: Hold function key

R/P: Redial and pause function key

SAVE: Save function key

/T:

in tone mode and P

T in pulse mode

M1, ..., M3: One-touch memory

F1,

...

, F4: Flash keys, F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS

Notes:

D1, ..., Dn, D1', ..., Dn' : 0, ..., 9, */T, #

Mn: M1, ..., M3 ; Fn: F1, ..., F4

W91360N SERIES

Publication Release Date: May 1997

- 5 -

Revision A2

Normal Dialing

OFF HOOK

, (or

ON HOOK

HFI

¡õ

, ...,

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.

Redialing

OFF HOOK

, (or

ON HOOK

HFI

¡õ

, ...,

Busy, Come

ON HOOK

OFF HOOK

, (or

ON HOOK

HFI

¡õ

R/P

1. The redial memory content will be dialed out.

2. The

R/P

key can execute the redial function only as the first key-in after off-hook;

otherwise, it

executes the pause function.

3. If redialing length oversteps 32 digits, the redialing function will be inhibited.

Number Store

OFF HOOK

, (or

ON HOOK

HFI

¡õ

, ...,

1. D1, D2, ..., Dn will be stored in memory location and dialed out.

OFF HOOK

, (or

ON HOOK

HFI

¡õ

, ...,

2. D1, D2, ..., Dn will be stored in memory location but will not be dialed out.

R/P

and

*/T

keys can be stored as a digit in memory.

In store mode,

R/P

is the pause function key.

4. The store mode is released after the store function is executed or when the state of the hook

switch is changed.

Repertory Dialing

OFF HOOK

, (or

ON HOOK

HFI

¡õ

Access Pause

OFF HOOK

, (or

ON HOOK

HFI

¡õ

R/P

, ...,

1. The pause function can be stored as a digit in memory.
2. The pause function is executed in normal dialing, redial dialing, or memory dialing.
3. The detailed timing diagram for the pause function is shown in Figure 4.

Pulse-to-tone (*/T)

W91360N SERIES

- 6 -

OFF HOOK

, (or

ON HOOK

HFI

¡õ

, ...,

*/T

D1'

D2'

, ...,

Dn'

1. If the mode switch is set to pulse mode, then the output signal will be:

D1, D2, ..., Dn, Pause (3.6 sec.), D1', D2', ..., Dn'

(Pulse)

(Tone )

2. If the mode switch is set to tone mode, then the output signal will be as follows:

D1, D2, ..., Dn, *, D1', D2', ..., Dn'

(Tone)

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 5.

Flash

OFF HOOK

, (or

ON HOOK

HFI

¡õ

1. Fn = F1, ..., F4

2. The dialer will execute a flash break time of 600 mS (F1), 300 mS (F2), 73 mS (F3), or 100 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, and it 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 6.

Save

OFF HOOK

, (or

ON HOOK

HFI

¡õ

, ...,

SAVE

1. If the dialing
of

is finished, pressing the

SAVE

key will cause D1 to Dn to be

copied to the save memory.

OFF HOOK

, (or

ON HOOK

HFI

¡õ

SAVE

2. D1 to Dn will be dialed out after the save key is pressed.

Cascaded Dialing

Normal Dialing

Repertory Dialing

Normal Dialing

Repertory Dialing

+ Normal Dialing

Repertory Dialing

W91360N SERIES

Publication Release Date: May 1997

- 7 -

Revision A2

Redialing

Normal Dialing

Repertory Dialing

Redialing and save dialing are valid as first key-in only.

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATING

UNIT

DC Supply Voltage

-0.3 to +7.0

-0.3

Input/Output Voltage

+0.3

-0.3

+0.3

Power Dissipation

120

Operation Temperature

OPR

-20 to +70

Storage Temperature

STG

-55 to +150

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

of the device.

DC CHARACTERISTICS

= 2.5V, F

OSC.

= 3.579545 MHz, T

= 25

C, all outputs unloaded)

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP. MAX.

UNIT

Operating Voltage

2.0

5.5

Operating Current

Tone, Unloaded

0.4

0.6

Pulse, Unloaded

0.2

0.4

Standby Current

HKS = V

, No load

& No key entry

Memory Retention Current

HKS = V

= 1.0V

0.2

DTMF Output Voltage

Row group,
R

= 5 K

130

150

170

mVrms

Pre-emphasis

Col/Row,
V

= 2.0 to 5.5V

DTMF Distortion

THD

= 5 K

= 2.0 to 5.5V

-30

-23

DTMF Output DC Level

TDC

= 5 K

= 2.0 to 5.5V

1.0

3.0

DTMF Output Sink Current

= 0.5V

0.2

DP Output Sink Current

= 0.5V

0.5

W91360N SERIES

- 8 -

DC Characteristics, continued

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP. MAX.

UNIT

T/P MUTE Output Sink
Current

= 0.5V

0.5

H/P MUTE Output

HPH

= 2.0V

0.5

Drive/Sink Current

HPL

= 0.5V

0.5

HFO Drive/Sink Current

HFH

= 2.0V

0.5

HFL

= 0.5V

0.5

Keypad Input Drive Current

= 0.0V

Keypad Input Sink Current

= 2.5V

200

400

HKS I/P Pull-High Resistor

300

Keypad Resistance

5.0

AC CHARACTERISTICS

= 2.5V, F

OSC.

= 3.579545 MHz, T

= 25

C, all outputs unloaded)

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Key-in Debounce

KID

Key Release Debounce

KRD

On-hook Debounce

OHD

150

Pre-digit Pause

PDP

Mode = V

10 ppS

Mode = Floating

33.3

Interdigit Pause

IDP

10 ppS

800

(Auto Dialing)

Make/Break Ratio

M/B

Mode = V

40:60

Mode = Floating

33.3:66.7

Tone Output Duration

Auto dialing

Intertone Pause

ITP

Auto dialing

600

Flash Break Time

300

100

Flash Pause Time

F1, F2, F3, F4

1.0

Pause Time

R/P

3.6

Notes:

1. Crystal parameters suggested for proper operation are Rs<100

, 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.

W91360N SERIES

Publication Release Date: May 1997

- 9 -

Revision A2

TIMING WAVEFORMS

IDP

HKS

KEY IN

H/P MUTE

T/P MUTE

IDP

KID

IDP

PDP

M B

KRD

KID

DTMF

OSC.

Low

OSCILLATION

PDP

Figure 1(a) Normal Dialing Timing Diagram

HKS

KEY IN

T/P MUTE

R/P

KID

IDP

PDP

M B

DTMF

OSC.

Low

OSCILLATION

IDP

KRD

H/P MUTE

T < T

OHD

Figure 1(b) Pulse Mode Auto Dialing Timing Diagram

W91360N SERIES

- 10 -

Timing Waveforms, continued

HKS

KEY IN

T/P MUTE

R/P

KID

IDP

PDP

M B

DTMF

OSC.

Low

OSCILLATION

KRD

T > T

OHD

H/P MUTE

Figure 1(c) Pulse Mode Auto Dialing Timing Diagram

HKS

KEY IN

T/P MUTE

DTMF

OSC.

OSCILLATION

ITP

KID

High

ITP

OSCILLATION

KRD

H/P MUTE

Low

Figure 2(a) Tone Mode Normal Dialing Timing Diagram

W91360N SERIES

Publication Release Date: May 1997

- 11 -

Revision A2

Timing Waveforms, continued

R/P

KRD

OSCILLATION

ITP

KID

High

T < T

OHD

HKS

KEY IN

T/P MUTE

DTMF

OSC.

H/P MUTE

Low

Figure 2(b) Tone Mode Auto Dialing Timing Diagram

R/P

KRD

OSCILLATION

ITP

KID

High

T > T

OHD

HKS

KEY IN

T/P MUTE

DTMF

OSC.

H/P MUTE

Low

Figure 2(c) Tone Mode Auto Dialing Timing Diagram

W91360N SERIES

- 12 -

Timing Waveforms, continued

HKS

KEY IN

MODE

DTMF

MUTE

H/P MUTE

HFI

HFO

OSC

T/P

Figure 3. Handfree Function Timing Diagram

OSC.

Low

OSCILLATION

KID

R/P

PDP

IDP

PDP

HKS

KEY IN

T/P MUTE

DTMF

H/P MUTE

Figure 4. Pause Function Timing Diagram

W91360N SERIES

Publication Release Date: May 1997

- 13 -

Revision A2

Timing Waveforms, continued

OSCILLATION

KID

*/T

PDP

IDP

HKS

KEY IN

T/P MUTE

DTMF

OSC.

H/P MUTE

Figure 5. Pulse-to-tone Timing Diagram

H/P MUTE

HKS

KID

DTMF

OSC.

KEY IN

Low

KID

ITP

OSCILLATION

HFI

HFO

T/P MUTE

Figure 6. Flash Timing Diagram

W91360N SERIES

- 14 -

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

Taipei Office

11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-7190505
FAX: 886-2-7197502

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

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

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

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