W91F820N Datasheet, PDF (6/20 Pages) Winbond – 13-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

Preliminary W91F820N SERIES
• EM1, ..., EM3: Emergency one-touch memory key
• F1, ..., F4: Flash function keys: F1 = 600 mS, F2 = 300 mS, F3 = 73 mS, F4 = 100 mS; all flash
pause time is 1.0 mS
Note: D1, ..., Dn, D1`, ..., Dn`, */T, #, Mn: EM1, ..., EM3, Ln: 0−9
Normal Dialing
OFF HOOK (or ON HOOK & _HFI
), 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 in normal dialing.
Redialing Dialing
OFF HOOK (or ON HOOK & _HFI
, D1 , D2 , …, Dn , BUSY
Come ON HOOK , OFF HOOK (or ON HOOK & _HFI
), R/P
The R/P key can execute redial function only as first key-in after off-hook. Otherwise, it will invoke
the pause function.
Number Store
1. OFF HOOK (or ON HOOK & _HFI
), D1 , D2 , ..., Dn , S , S ,
Mn (or A , Ln or SAVE )
a. The dialing out of D1 to Dn must first be finished before the S key is pressed.
b. D1, D2, …, Dn will be stored in memory location Mn or saved and then dialed out.
2. OFF HOOK (or ON HOOK & _HFI
), S , D1 , D2 , ..., Dn , S ,
Mn (or A , Ln or SAVE )
a. D1, D2, …, Dn will be stored in memory location, Mn (or saved), but will not be dialed out.
b. R/P and */T keys can be stored as a digit in memory, but the R/P key cannot be the
first digit. In store mode, R/P is the pause function key.
c. The store mode is released after the store function is executed or when the state of the hook
switch changes or the flash function is executed.
Save
OFF HOOK (or ON HOOK & _HFI
), D1 , D2 , ..., Dn , Save
a. D1, D2, ..., Dn will be dialed out.
b. If the dialing of D1 to Dn is finished, pressing SAVE will duplicate D1 to Dn to the
save memory.
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