74HCT138 3-to-8 Decoder

Name: 74HCT138 3-to-8 Decoder
Brand: Texas Instruments
Availability: InStock

74HCT138

Texas Instrumentsic logic

The SN54HCT138 is a 3-to-8 decoder IC with 20 pins, providing digital output for each of its eight outputs.

In stock

Specifications

Pin	Name	Functions	Notes
VCC	VCC	POWER	Power supply voltage
16	Y0	GPIO	Output for the first decoded signal
2	Y1	GPIO	Output for the second decoded signal
3	Y2	GPIO	Output for the third decoded signal
4	Y3	GPIO	Output for the fourth decoded signal
5	Y4	GPIO	Output for the fifth decoded signal
6	Y5	GPIO	Output for the sixth decoded signal
7	Y6	GPIO	Output for the seventh decoded signal
8	Y7	GPIO	Output for the eighth decoded signal
15	G2A	GPIO	Input for the second group of inputs
14	G2B	GPIO	Input for the second group of inputs
13	G1	GPIO	Input for the first group of inputs
12	NC	GND	No connection
11	NC	GND	No connection
10	NC	GND	No connection
9	NC	GND	No connection
18	VCC	POWER	Power supply voltage
17	Y2	GPIO	Output for the second decoded signal
16	NC	GND	No connection
15	Y3	GPIO	Output for the third decoded signal
14	NC	GND	No connection
13	Y4	GPIO	Output for the fourth decoded signal
12	NC	GND	No connection
11	Y5	GPIO	Output for the fifth decoded signal
10	NC	GND	No connection
9	Y6	GPIO	Output for the sixth decoded signal
8	NC	GND	No connection
7	Y7	GPIO	Output for the eighth decoded signal

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74HCT138

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