74F138 3-to-8 Decoder

Name: 74F138 3-to-8 Decoder
Brand: Texas Instruments

74F138

Texas Instrumentsic logic

The SN54F138 and SN74F138 are 3-to-8 line decoders designed for high-speed memory decoding or data routing applications.

Manufacturer datasheet

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Specifications

Operating Voltage: 4.5 V to 5.5 V V
Supply Current: 13 mA to 20 mA mA
Temperature Range: -55°C to 125°C (SN54F138); 0°C to 70°C (SN74F138)

Pinout

Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.

Pin	Name	Functions	Notes
A	Select Input A	GPIO	Binary select input
B	Select Input B	GPIO	Binary select input
C	Select Input C	GPIO	Binary select input
G1	Enable Input G1	GPIO	Active-high enable input
G2A	Enable Input G2A	GPIO	Active-low enable input
G2B	Enable Input G2B	GPIO	Active-low enable input
Y0	Output Y0	GPIO	Decoded output
Y1	Output Y1	GPIO	Decoded output
Y2	Output Y2	GPIO	Decoded output
Y3	Output Y3	GPIO	Decoded output
Y4	Output Y4	GPIO	Decoded output
Y5	Output Y5	GPIO	Decoded output
Y6	Output Y6	GPIO	Decoded output
Y7	Output Y7	GPIO	Decoded output

Interactive pinout

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74F138

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