74HC251 8-to-1 Mux

Name: 74HC251 8-to-1 Mux
Brand: Texas Instruments

SN74HC251

Texas Instrumentsic logic

The 74HC251 is an 8-to-1 multiplexer with 3-state outputs that can interface directly with a system bus or drive up to 15 LSTTL loads.

Manufacturer datasheet

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Specifications

Operating Voltage: 2V to 6V
Supply Current: 80μA max
Interface: 3-state outputs
Resolution: N/A
Range: 0V to VCC
Accuracy: N/A
Temperature Range: -55°C to 125°C
Package: SOIC, SSOP, PDIP, SO, TSSOP, CDIP, LCCC

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	Selects data source
2	A1	GPIO	Selects data source
3	A2	GPIO	Selects data source
4	OE	GPIO	Output enable, high to disable outputs
5	VCC	POWER
6	D0	GPIO	Data input
7	D1	GPIO	Data input
8	D2	GPIO	Data input
9	D3	GPIO	Data input
10	D4	GPIO	Data input
11	D5	GPIO	Data input
12	D6	GPIO	Data input
13	D7	GPIO	Data input
14	GND	GND
15	Y0	GPIO	Selected data output
16	Y1	GPIO	Selected data output

Interactive pinout

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SN74HC251

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