SN74LS257BN

Number of Lines (Input / Output) : 2 / 1
Product : Selector / Multiplexer
Number of Bits : 4
Packaging : Tube
Mounting Style : Through Hole
Package / Case : PDIP-16
Supply Voltage - Max : 5.25 V
Supply Voltage - Min : 4.75 V
Maximum Operating Temperature : + 70 C
Logic Family : LS
Propagation Delay Time : 15 ns at 5 V


Features:

• Schottky Process For High Speed
• Multiplexer Expansion By Tying Outputs Together
• Non-Inverting 3-State Outputs
• Input Clamp Diodes Limit High Speed Termination Effects
• Special Circuitry Ensures Glitch Free Multiplexing
• ESD > 3500 Volts


Pinout




Description

The LSTTL/MSI SN74LS257B and the SN74LS258B are Quad 2-Input Multiplexers with 3-state outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (non-inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (EO) Input, allowing the outputs to interface directly with bus oriented systems. It is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all ON Semiconductor TTL families.

Parameters:

Technical/Catalog Information	SN74LS257BN
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Circuit	4 x 2:1
Independent Circuits	1
Mounting Type	Through Hole
Current - Output High, Low	2.6mA, 24mA
Package / Case	16-DIP (300 mil)
Packaging	Tube
Type	Data Selector/Multiplexer
Voltage Supply Source	Single Supply
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.75 V ~ 5.25 V
Drawing Number	296; 4040049; N; 14, 16, 18, 20
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74LS257BN SN74LS257BN 296 1656 5 ND 29616565ND 296-1656-5