YTD426B-S Ver la hoja de datos (PDF) - Yamaha Corporation

Número de pieza

componentes Descripción

Fabricante

YTD426B-S

ISDN U Interface (TCM mode)

Yamaha Corporation 

8

CHAPTER 3. PIN DESCRIPTIONS

3.2 Pin Functions

3.2.1 Common Section

Pin No.

19,36,55

73,90,99

109,127,144

Pin name

VDD

1,18,27

29,37,54

72,80,83 VSS

91,95,108

115,126

81

CLK1536

82

CLKOUT

119 POWMON

128 RESET

I/O

PWR

GND

IN

OUT

IN

IN

Function

+5V power supply610%

ground

Master clock or crystal oscillator input.

(15.36MHz 650ppm or less)

Crystal oscillator output

Power supply monitor pin of the equipment on

the T reference point side

\H": Power supply OFF

\L": Power supply ON

Hardware reset

Apply the reset pulse for 1 ms or more after the

clock oscillation reset YTD426B.

If the pulse is less than 1 ms, the operation is

unpredictable.

During the voltage polarity of U reference point

is positive, input \L" to this pin.

Remarks

All pins must

be joined

together.

All pins must

be joined

together.

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