DA108S データシートの表示（PDF） - STMicroelectronics

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DA108S

Diode Array

STMicroelectronics 

Characteristics

DA108S1 / DA112S1

Figure 3. APPLICATION 1: ISDN Interface ProtectionResidual lightning surges at

transformer secondary are suppressed by DA108S1

Vcc

LOGIC SIDE

Vcc

Vss

Vcc

Vss

Vcc

Vss

Vss

DA1xx S1

LINE SIDE

A

TPIxx

GND

B

A

TPIxx

GND

B

Figure 4. APPLICATION 2: Microcontroller I/O port protection

Vcc

Vcc

4-6 bit input port

I/O

Vcc

I/O

Vcc

μc

I/O

Vcc

I/O

DA1xx S1

Note:

IMPORTANT : DA108S1 must imperatively be connected to the reference voltages by REF1

and REF2.

4/8

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