W91580 Просмотр технического описания (PDF) - Winbond

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производитель

W91580

24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS

Winbond 

W91580 SERIES

Timing Waveforms, continued

HKS

HFI

H KEY

HFO

OFF HOOK

ON HOOK

T/P MUTE

HPM MUTE

HIGH

LOW

CHIP ENBLE

Note: H KEY cannot be enabled when chip is disabled.

Figure 3(a).

HKS

HFI

H KEY

HFO

OFF HOOK

T/P MUTE

HIGH

HPM MUTE

CHIP ENBLE

Figure 3(b).

Note: The HFI and H KEY inputs will toggle the HFO signal; as soon as either HFI or H KEY is activated, the HFO signal

will go high and previous inputs will be ignored.

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Publication Release Date: Auguest 1995

Revision A3

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