W91320 Ver la hoja de datos (PDF) - Winbond

Número de pieza

componentes Descripción

Fabricante

W91320

TONE/PULSE DIALER WITH REDIAL FUNCTION

Winbond 

W91320N SERIES

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

D1, D2, …, Dn, Pause (2.0 sec. or 3.6 sec.), D1', D2', …, Dn'

(Pulse)

(Tone )

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

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

(Tone)

(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 6.

Flash

OFF HOOK (or ON HOOK & HFI ¡õ ), Fn

1. Fn = F1, ..., F4

2. The dialer will execute flash break time of 600 mS (F1), 100 mS (F2), 300 mS (F3), or 73 mS (F4)

and all the pause time is 1.0 sec. before the next digit is dialed out.

3. Flash key can not be stored as a digit in memory. The flash key has the first priority among

the 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 7.

HOLD

OFF HOOK (or ON HOOK & HFI ¡õ ), H

The hold function is switched on and off by a toggle switch. The keypad will be disabled when in hold

mode. The function timing diagram is shown in Figure 3(a, b, c).

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

DC Supply Voltage

VDD−VSS

Input/Output Voltage

VIL

VIH

VOL

VOH

Power Dissipation

PD

Operation Temperature

TOPR

Storage Temperature

TSTG

RATING

-0.3 to +7.0

VSS −0.3

VDD +0.3

VSS −0.3

VDD + 0.3

120

-20 to +70

-55 to +150

UNIT

V

V

V

V

V

mW

°C

°C

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

device.

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