W91F810N Datasheet, PDF (20/26 Pages) Winbond – 23-FLASH MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS

W91F810N SERIES
Timing Waveforms, continued
HKS
HFI
H KEY
HFO
T/P MUTE
H/P MUTE
CHIP ENABLE
OFF HOOK
HIGH
Figure 3(b)
Note: The H KEY and HFI inputs will toggle the HFO signal. The first time HFI or H KEY are activated, the HFO signal will go
high and the previous active input will be neglected.
HKS
HFI
H KEY
HFO
T/P MUTE
H/P MUTE
CHIP ENABLE
ON HOOK
HIGH
Figure 3(c)
Note: The HKS signal change of state from high to low will initialize both the HFO and H/P MUTE signals.
- 20 -