74LS42 BCD-to-Decimal Decoder

Name: 74LS42 BCD-to-Decimal Decoder
Brand: Texas Instruments

74LS42

Texas Instrumentsic logic

The 74LS42 is a BCD-to-decimal decoder that converts 4-bit binary-coded decimal (BCD) inputs into 10-line decimal outputs.

Manufacturer datasheet

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Specifications

Operating Voltage: 5V
Supply Current: 20mA
Temperature Range: -40 to 85°C

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
1	A0	GPIO	BCD input
2	A1	GPIO	BCD input
3	A2	GPIO	BCD input
4	A3	GPIO	BCD input
5	G0	GPIO	Output for decimal 0
6	G1	GPIO	Output for decimal 1
7	G2	GPIO	Output for decimal 2
8	G3	GPIO	Output for decimal 3
9	G4	GPIO	Output for decimal 4
10	G5	GPIO	Output for decimal 5
11	G6	GPIO	Output for decimal 6
12	G7	GPIO	Output for decimal 7
13	G8	GPIO	Output for decimal 8
14	G9	GPIO	Output for decimal 9
15	VCC	POWER	Supply voltage
16	GND	GND	Ground

Interactive pinout

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74LS42

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