W91473 Ver la hoja de datos (PDF) - Winbond

Número de pieza

componentes Descripción

Fabricante

W91473

14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTIONS

Winbond 

W91473 SERIES

• F1, F2, F3: Flash keys

• R: One-key redial

• H: Hold function key

• M0j: Direct repertory memory

• EMi: One-touch memory for emergency call

• */T: * & P→T

• CLR: Clear key

• R/P: Redial and pause function key

• MER: One-touch memory for mercury code dialing

Note: Dn = 0 to 9, *, #, M0j = M00 to M09 (j = 0 to 9).

Normal Dialing

OFF HOOK (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn

1. D1, D2, ..., Dn will be dialed out.

2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits.

Redialing

1. OFF HOOK , D1 , D2 , ..., Dn BUSY, Come ON HOOK , OFF HOOK

(or ON HOOK & HFI ¡õ ), R/P

or ON HOOK & HFI ¡õ , D1 , D2 , ..., Dn BUSY, HFI ¡õ Come

HFI ¡õ , R/P

The R/P key can execute redial function only as first key-in after off-hook. Otherwise, it will

execute pause function.

2. OFF HOOK (or ON HOOK & HFI ¡õ ), D1 , D2 , ..., Dn , R

a. The one-key redial function timing diagram is shown in Figure 4.

b. If dialing D1 to Dn is completed, pressing the R key will cause the pulse output pin

of

to go low for 2.2 seconds. Break time and a 600 mS pause will automatically be added.

c. If the R key is pressed before the pulses for the number dialed out are completed, it will be

ignored.

Publication Release Date: February 1995

-7-

Revision A3

Share Link: