W91F820N Datasheet, PDF (7/20 Pages) Winbond – 13-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

Preliminary W91F820N SERIES
OFF HOOK (or ON HOOK & _HFI
),
come on OFF HOOK (or ON HOOK & _HFI
), SAVE
c. D1 to Dn will be dialed out after the SAVE key is pressed.
Repertory Dialing Procedure
One-touch direct repertory dialing:
OFF HOOK (or ON HOOK & _HFI
), Mn (or SAVE )
Two-touch direct repertory dialing:
OFF HOOK (or ON HOOK & _HFI
), A , Ln (or Mn )
Access Pause
OFF HOOK (or ON HOOK & _HFI ), D1 , D2 , R/P , D3 , ..., Dn
1. The pause function can be stored in memory.
2. The pause function is executed with normal dialing, redialing or memory dialing.
3. The pause function timing diagram is shown in Figure 6.
Pulse to Tone (*/T)
OFF HOOK (or ON HOOK & _HFI
), D1 , D2 , ..., Dn , */T , D1' ,
, D2' , ..., Dn'
1. If the mode switch is set in pulse mode, then it will perform
D1, D2, ---, Dn, Pause (3.6 sec), D1', D2', ---, Dn'
(Pulse)
(Tone)
2. If the mode switch is set in tone mode, then the output signal will be:
D1, D2, ---, Dn, * , D1', D2', ---, Dn'
(Tone)
3. It can be reset to pulse mode only if ON HOOK is active. This is because it remains in tone mode
when the digits have been dialed out.
4. The function timing diagram is shown in Figure 7.
Flash
OFF HOOK (or ON HOOK & _HFI
), Fn
1. Fn = F1−F4. If Fn is pressed, the dialer will execute a flash break time of 600 mS (F1), 300 mS
Publication Release Date: January 1999
-7-
Revision A1