W91466N データシートの表示（PDF） - Winbond

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W91466N

3-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

Winbond 

W91460N SERIES

Pin Description, continued

SYMBOL PIN I/O

FUNCTION

HKS

10

I Hook switch input.

HKS = VDD: On-hook state. Chip in sleeping mode, no operation.

HKS = VSS: Off-hook state. Chip is enabled for normal operation.

HKS pin is pulled to VDD by an internal resistor.

DP

11

O N-channel open drain dialing pulse output.

Flash key will cause DP to be active in either tone mode or pulse

mode.

The timing diagram for pulse mode is shown in Figure 1(a, b, c).

VDD, VSS 14, 6 I Power input pins.

DTMF

12

O In pulse mode, this pin remains in low state at all times.

In tone mode, it will output a dual or single tone.

Detailed timing diagram for tone mode is shown in Figure 2(a, b, c).

Output Frequency

Specified Actual Error %

R1

697

699

+0.28

R2

770

766

-0.52

R3

852

848

-0.47

R4

941

948

+0.74

C1

1209

1216

+0.57

C2

1336

1332

-0.30

C3

1477

1472

-0.34

Publication Release Date: May 1997

-3-

Revision A2

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