W91473 Datasheet, PDF (9/20 Pages) Winbond – 14-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND LOCK FUNCTION

W91473 SERIES
Pulse-to-Tone (*/ T)
OFF HOOK (or ON HOOK
& _{HFI ¡õ}
), D1 , D2 , ..., Dn ,
*/T , D1' , D2' _{, ...,} Dn'
1. If the mode switch is set to pulse mode, then the output signal will be:
D1, D2, ..., Dn, Pause (3.6s), 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) (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 P→T function timing diagram is shown in Figure 6.
5. */ T key cannot be stored as a digit in memory.
Save
1. OFF HOOK (or ON HOOK & _{HFI ¡õ} ), S , D1 , D2 , ..., Dn
S , SAVE
D1, D2, ..., Dn, will be stored in SAVE memory but will not be dialed out.
2. OFFHOOK (or ON HOOK & _{HFI ¡õ} ), D1 , D2 , ..., Dn , S ,
S , SAVE
D1, D2, ..., Dn , will be stored in SAVE memory and will be dialed out.
3. OFF HOOK (or ON HOOK & _{HFI ¡õ} ), SAVE
The content of SAVE memory will be dialed out.
Flash (F = F1, F2, F3)
OFF HOOK (or ON HOOK & _{HFI ¡õ} ), F
1. Flash key cannot be stored as a digit in memory and it has first priority among keyboard functions.
2. The system will return to the initial state after the break time is finished.
3. The flash function timing diagram is shown in Figure 7.
Publication Release Date: February 1995
-9-
Revision A3