NB74ACT257SC

GLOBAL BRAND CROSS-REFERENCE

onsemi

IC MULTIPLEXER 4 X 2:1 16-SOIC

74ACT257SC

High-reliability design
Long-term stable supply
RoHS compliant

IC MULTIPLEXER 4 X 2:1 16-SOIC

1. PRODUCT POSITIONING

NB74ACT257SC is a product identity corresponding to the reference product 74ACT257SC. This document presents the available product specifications, mechanical/package information and compatibility summary for engineering and procurement reference.

This document is a product information. Compatibility conclusions should be read together with the applicable Cross-Reference Identification (CID) rule, package/pin verification and engineering review record.

2. TECHNICAL SPECIFICATION COMPARISON (core parameters)
Parameter	onsemi 74ACT257SC	ChipNobo NB74ACT257SC	Match
Part Status	Active	Active	✓
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	✓
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	✓
Independent Circuits	1	1	✓
Mounting Type	Surface Mount	Surface Mount	✓
Type	Multiplexer	Multiplexer	✓
Voltage Supply Source	Single Supply	Single Supply	✓
Circuit	4 x 2:1	4 x 2:1	✓
Current - Output High, Low	24mA, 24mA	24mA, 24mA	✓
Supplier Device Package	16-SOIC	16-SOIC	✓
Package / Case	16-SOIC (0.154", 3.90mm Width)	16-SOIC (0.154", 3.90mm Width)	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓

3. SUPPLY & LIFECYCLE
ChipNobo Number	NB74ACT257SC
Lifecycle status	Active
NRND	No
EOL	No
PCN monitor	No
Last buy date	No Deadline
Alternate availability	Sufficient

CHIPNOBO

Semiconductor Replacement Engineering & Supply Continuity

Signal Switches, Multiplexers, Decoders

PRODUCT DATASHEET

4. APPLICATION AREAS
ADAS Camera System	Smart Cockpit
Vehicle Communication Network (CAN/CAN FD/LIN)	AI Server
GPU Server	Data Center Switch
5G Base Station	Network Switch
PLC Controller	Semiconductor Equipment
Medical Monitoring Equipment	Smartphone

5. ENGINEERING & COMMERCIAL NOTES

The ChipNobo MPN is the public product identity used by ChipNobo for this replacement reference.
The original manufacturer and original MPN are retained as reference identity information.
Product PDF data are intended for engineering, procurement and supply-continuity reference.
Current price, MOQ, lead time, available supply source and regional availability should be confirmed through RFQ.
For customer-specific qualification, PCB footprint approval, reliability requirements or design-in approval, the customer should perform the applicable validation process.

Document purpose: Product Information / Replacement Reference · Generated from the product data supplied for NB74ACT257SC.

Important Notice & Disclaimer

Document ID: 【CN-DATA-NB74ACT257SC】 Revision: 1.0 Status: Released

The information provided by ChipNobo is intended solely for engineering evaluation, product selection, procurement, and supply continuity reference purposes. Product specifications, lifecycle status, availability, and other information are subject to change without notice. Customers should always verify relevant information against the latest official documentation published by the respective manufacturers.

Cross-reference and replacement recommendations are provided for engineering reference purposes only. They do not constitute a guarantee of pin-to-pin compatibility, interchangeability, or suitability for any particular application. Customers are responsible for conducting all necessary engineering reviews, testing, and qualification prior to product selection and use.

Manufacturer names, trademarks, and part numbers are referenced solely for product identification purposes. Their use does not imply any affiliation with, endorsement by, or authorization from the respective manufacturers, unless expressly stated otherwise.

To the maximum extent permitted by applicable law, ChipNobo makes no warranties, express or implied, regarding the completeness, accuracy, or suitability of the information provided and shall not be liable for any loss or damage arising from its use or reliance, except as otherwise expressly agreed in writing and subject to applicable law.