Mfr Part #:

SN74HC257DR

The Texas Instruments SN74HC257DR is a 4 x 2:1 multiplexer designed for high-performance systems. It operates over a wide voltage range and features a standard 16-SOIC package.

✓ Total Stock: 206,077 pcs

$ Price Range: $1.27

SN74HC257DR Available from 4 distributors

✓ Authorised

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Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	200,889 pcs On Request	200889 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	4,030 pcs On Request	4030 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Speed Components Ltd ✓ Non-Authorised Inventory information	800 pcs On Request	800 pcs	On Request	1	On Request	On Request	06+	On Request	On Request
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	358 pcs On Request	358 pcs	On Request	1	On Request	On Request	09+	On Request	On Request

SN74HC257DR Description

Short technical summary and product information.

The SN74HC257DR from Texas Instruments is a high-speed CMOS multiplexer featuring four independent 2-to-1 line selections. This device is suitable for a wide operating voltage range of 2V to 6V, making it versatile for various applications. It offers high-current inverting outputs capable of driving up to 15 LSTTL loads and provides ±6-mA output drive at 5V.

The multiplexer has a low power consumption with a maximum ICC of 80 µA and a low input current of 1 µA maximum. It is designed to provide bus interface capabilities from multiple sources in high-performance systems. The SN74HC257DR comes in a 16-SOIC package, suitable for surface mounting.

Key electrical characteristics include a typical propagation delay of 9 ns for the 'HC257 variant. The operating temperature range is -40°C to 85°C, ensuring reliable performance in various environmental conditions. This component is ideal for digital logic applications requiring efficient data selection and routing.

SN74HC257DR Quick Information

Product Type: Multiplexer

Series: SN74HC257

Canonical Name: SN74HC257DR Multiplexer

Subcategory: Signal Switches, Multiplexers, Decoders

SN74HC257DR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

SN74HC257DR Estimated Pricing

Qty	Low	High
1+	$1.27	$1.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74HC257DR Features

Four independent 2-to-1 multiplexer channels.
Wide 2V to 6V operating voltage range.
High-current inverting outputs drive loads.
Low power consumption, 80-µA max ICC.
Standard 16-SOIC surface-mount package.

SN74HC257DR Applications

Used for data selection and routing.
Suitable for high-performance systems.
Provides bus interface from multiple sources.
Ideal for digital logic applications.

SN74HC257DR FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the SN74HC257DR?

2V to 6V single supply.

What package does the SN74HC257DR come in?

16-SOIC (0.154", 3.90mm Width) surface mount.

What is the operating temperature range?

-40°C to 85°C.

What is the typical propagation delay of the SN74HC257DR?

9 ns at VCC = 5 V and CL = 15 pF.

What is the output drive current?

±6 mA at VCC = 5 V.

What is the maximum supply current?

80 µA.

What is the input current?

1 µA maximum.

Category	Signal Switches, Multiplexers, Decoders
Manufacturer Name	Texas Instruments
Circuit	4 x 2:1
Current	7.8mA
Independent Circuits	1
Mounting Type	Surface Mount
Operating Temperature	-40°C to 85°C
Supplier Device Package	16-SOIC
Supplier Package	16-SOIC (0.154", 3.90mm Width)
Supply Current	80 µA
Type	Multiplexer
Voltage	2V to 6V
Voltage Supply Source	Single Supply