Download Equivalent Schematic for Eagle-Cad (L9.sch)

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L9, 74HC08 Quad 2-input AND gate

Pin #

Pin Description

Circuit Configuration

IDM Function

1

Gate #1 input

Driven by (L8-P12) Connects with (L10-P3)

2

Gate #1 input

Driven by (L11-P8) Connected with (L9-P4)

3

Gate #1 output

Drives (L10-P9) and a feeder signal transistor

4

Gate #2 input

Driven by (L11-P8) Connected with (L9-P2)

5

Gate #2 input

Driven by (L10-P4)

6

Gate #2 output

Drives (L13-P9) and a feeder signal transistor

7

GND

Common GND

Power GND for device

8

Gate #3 output

Drives (L8-P31)

9

Gate #3 input

Driven by (L6-P3)

10

Gate #3 input

Driven by (L6-P6)

11

Gate #4 output

NC

Not used

12

Gate #4 input

Hard-wired to GND

Not used

13

Gate #4 input

Hard-wired to GND

Not used

14

VCC

Common 5VDC

Power 5VDC for device

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