W91473 Datasheet, PDF (7/20 Pages) Winbond – 14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTION

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