W91466N 查看數據表（PDF） - Winbond

零件编号

产品描述 (功能)

生产厂家

W91466N

3-MEMORY TONE/PULSE DIALER WITH SAVE FUNCTION

Winbond 

PIN CONFIGURATION

W91460N SERIES

C1 1

C2 2

C3 3

C4 4

C5 5

VSS

6

XT 7

XT 8

T/P MUTE 9

18 R4

17 R3

16 R2

15 R1

14

VDD

13 MODE

12 DTMF

11 DP

10 HKS

PIN DESCRIPTION

SYMBOL PIN I/O

FUNCTION

Column-

Row

Inputs

1−5

&

15−18

I The keyboard inputs may be used with either a standard 5 × 5

keyboard or an inexpensive single contact (Form A) keyboard.

Electronic input from a µC can also be used.

A valid key-in is defined as a single row being connected to a single

column.

XT, XT

7, 8 I, O A built-in inverter provides oscillation with an inexpensive 3.579545

MHz crystal or ceramic resonator.

T/P

MUTE

9

O The T/P MUTE is a conventional CMOS N-channel open drain output.

The output transistor is switched on during dialing sequence and flash

break time. Otherwise, it is switched off.

MODE

13

I Pulling mode pin to VSS places the dialer in tone mode.

Pulling mode pin to VDD places the dialer in pulse mode with M/B ratio

40:60 (10 ppS for W91462N and 20 ppS for W91466N).

Floating mode pin places the dialer in pulse mode with M/B ratio

33.3:66.7 (10 ppS for W91462N and 20 ppS for W91466N).

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