SN74LS251N - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

SN74LS251N
Manufacturer

TI
ChipWorker Part#

CW27964025
Category

Logic Controller, Logic IC
Package

DIP-16
Description

TEXAS INSTRUMENTS SN74LS251N Data Selector / Multiplexer, 3-State Outputs, LS Family, 1Channels, 8:1, 4.75V to 5.25V, DIP-16
Documentation

Datasheet

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SN74LS251N Specifications

Attribute	Attribute Value

Part Number	SN74LS251N
Manufacturer	TI
ChipWorker Part#	CW27964025
Category	Logic Controller, Logic IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	16 Pin
Case/Package	DIP-16
Digital Logic Level	TTL
Supply Voltage (DC)	4.75V ~ 5.25V
Number of Outputs	1 Output
Supply Current	6.10 mA
Number of Circuits	1 Circuit
Number of Channels	1 Channel
Number of Positions	16 Position
Number of Bits	8 Bit
Polarity	Non-Inverting, Inverting
Voltage Nodes	5.00 V
Power Dissipation	0.035 W
Quiescent Current	7.10 mA
Bandwidth	35.0 MHz
Output Current Drive	-325 µA
Number of Inputs	8 Input
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Power Dissipation (Max)	35 mW
Supply Voltage	4.75V ~ 5.25V
Supply Voltage (Max)	5.25 V
Supply Voltage (Min)	4.75 V
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Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The SN74LS251N is a 8-to-1 Data Selector/Multiplexer with 3-state outputs. It contains full on-chip binary decoding to select one-of-eight data sources and feature a strobe-controlled three-state output. The strobe must be at a low logic level to enable these devices. The three-state outputs permit a number of outputs to be connected to a common bus. When the strobe input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off and the output neither drives nor loads the bus significantly. When the strobe is low, the outputs are activated and operate as standard TTL totem-pole outputs. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output control circuitry is designed so that the average OD time is shorter than the average output enable time.
Three state outputs interface directly with system bus
Perform parallel-to-serial conversion
Permit multiplexing from N-lines to one line
Complementary outputs provide true and inverted data
Fully compatible with most TTL circuits

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