Open Hardware Cross Reference

MC74VHCT257ADTR2G

onsemi public PCN index lists PD27554X, Product Discontinuance of Logic Products, issued 2026-07-21, including MC74VHCT257ADTR2G. SN74AHCT257PWR is the first replacement review candidate selected from the replacement research batch.

Open MC74VHCT257ADTR2G on TrustCompo View MC74VHCT257ADTR2G datasheet

Status
eol

Vendor
ON Semiconductor

Package
TSSOP-16

Category
Logic - Signal Switches, Multiplexers, Decoders

Target product summary

MC74VHCT257ADTR2G

MC74VHCT257ADTR2G is a high-speed 5 V CMOS / TTL-input quad 2:1 multiplexer. onsemi PCN PD27554X lists it in a 2026 Product Discontinuance notice. AHCT/HCT alternatives such as SN74AHCT257PWR, SN74AHCT257QPWRQ1, and 74HCT257PW,118 should be reviewed first where the design depends on TTL-compatible inputs.

Series: MC74VHCT257A | Datasheet landing page: https://www.trustcompo.com/product/detail/TCE000101439-MC74VHCT257ADTR2G/datasheet

Replacement candidates

74HCT257PW,118

P2P · Fit score 95

Nexperia 74HCT257PW,118 is an HCT quad 2-input multiplexer with 3-state outputs in TSSOP-16.

Package: TSSOP-16 | Series: 74HCT257

Manufacturer: Nexperia; Part Number: 74HCT257PW,118; Series: 74HCT257; Function: Quad 2-input multiplexer

SN74AHCT257PWR

P2P · Fit score 95

TI SN74AHCT257PWR is a 5 V AHCT quad 2-input data selector/multiplexer in TSSOP-16.

Package: TSSOP-16 | Series: SN74AHCT257

Manufacturer: Texas Instruments; Part Number: SN74AHCT257PWR; Series: SN74AHCT257; Function: Quad 2-input multiplexer

SN74AHCT257QPWRQ1

P2P · Fit score 95

TI SN74AHCT257QPWRQ1 is an automotive-qualified AHCT257 TSSOP-16 multiplexer.

Package: TSSOP-16 | Series: SN74AHCT257-Q1

Manufacturer: Texas Instruments; Part Number: SN74AHCT257QPWRQ1; Series: SN74AHCT257-Q1; Function: Automotive quad 2-input multiplexer

74HC257PW,118

Functional · Fit score 75

Nexperia 74HC257PW,118 is an HC quad 2-input multiplexer with 3-state outputs.

Package: TSSOP-16 | Series: 74HC257

Manufacturer: Nexperia; Part Number: 74HC257PW,118; Series: 74HC257; Function: Quad 2-input multiplexer

SN74HCT257DR

Functional · Fit score 75

TI SN74HCT257DR is a 5 V HCT quad 2:1 multiplexer with 3-state outputs in SOIC-16.

Package: SOIC-16 | Series: SN74HCT257

Manufacturer: Texas Instruments; Part Number: SN74HCT257DR; Series: SN74HCT257; Function: Quad 2:1 multiplexer/data selector

SN74LVC257APWR

Functional · Fit score 75

TI SN74LVC257APWR is an active LVC quad 2:1 multiplexer with 3-state non-inverting outputs in TSSOP-16.

Package: TSSOP-16 | Series: SN74LVC257A

Manufacturer: Texas Instruments; Part Number: SN74LVC257APWR; Series: SN74LVC257A; Function: Quad 2:1 multiplexer/data selector

SN74LVC157APWR

Similar · Fit score 55

TI SN74LVC157APWR is a quad 2:1 data selector family used as a similar redesign candidate.

Package: TSSOP-16 | Series: SN74LVC157A

Manufacturer: Texas Instruments; Part Number: SN74LVC157APWR; Series: SN74LVC157A; Function: Quad 2:1 data selector/multiplexer

SN74LVC258APWR

Similar · Fit score 55

TI SN74LVC258APWR is an active LVC quad 2:1 inverting multiplexer with 3-state outputs in TSSOP-16.

Package: TSSOP-16 | Series: SN74LVC258A

Manufacturer: Texas Instruments; Part Number: SN74LVC258APWR; Series: SN74LVC258A; Function: Quad 2:1 multiplexer/data selector

Parameter comparison

Attribute	MC74VHCT257ADTR2G	74HCT257PW,118	SN74AHCT257PWR	SN74AHCT257QPWRQ1	74HC257PW,118	SN74HCT257DR	SN74LVC257APWR	SN74LVC157APWR	SN74LVC258APWR
Manufacturer	onsemi	Nexperia	Texas Instruments	Texas Instruments	Nexperia	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Part Number	MC74VHCT257ADTR2G	74HCT257PW,118	SN74AHCT257PWR	SN74AHCT257QPWRQ1	74HC257PW,118	SN74HCT257DR	SN74LVC257APWR	SN74LVC157APWR	SN74LVC258APWR
Series	MC74VHCT257A	74HCT257	SN74AHCT257	SN74AHCT257-Q1	74HC257	SN74HCT257	SN74LVC257A	SN74LVC157A	SN74LVC258A
Function	Quad 2:1 multiplexer/data selector	Quad 2-input multiplexer	Quad 2-input multiplexer	Automotive quad 2-input multiplexer	Quad 2-input multiplexer	Quad 2:1 multiplexer/data selector	Quad 2:1 multiplexer/data selector	Quad 2:1 data selector/multiplexer	Quad 2:1 multiplexer/data selector
Output Type	3-state, non-inverting	3-state, non-inverting	3-state, non-inverting	3-state, non-inverting	3-state, non-inverting	3-state, non-inverting	3-state, non-inverting	Non-inverting	3-state, inverting
Package / Case	TSSOP-16	TSSOP-16	TSSOP-16	TSSOP-16	TSSOP-16	SOIC-16	TSSOP-16	TSSOP-16	TSSOP-16
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Lifecycle Status	Product Discontinuance notice PD27554X	-	-	-	-	-	-	-	-

Engineer review boundary

This page is designed for first-pass shortlist work. Treat the candidates below as engineering starting points, then verify footprint compatibility, electrical limits, lifecycle timing, compliance requirements, and qualification scope before approving a BOM change. For official sample requests, full data verification, and legal warranty support, please consult through TrustCompo Inquiry Channel.

Evidence summary

onsemi PD27554X Product Discontinuance notice (manufacturer-pcn)
onsemi PD27554X Product Discontinuance of Logic Products, public PCN index entry issued 2026-07-21. Signals: product-discontinuance, PD27554X.
MC74VHCT257ADTR2G datasheet (catalog-datasheet)
Target datasheet used as the first-pass electrical and package reference. Signals: datasheet, target-part.
MC74VHCT257ADTR2G lifecycle note (catalog-lifecycle)
onsemi public PCN index lists PD27554X, Product Discontinuance of Logic Products, issued 2026-07-21, including MC74VHCT257ADTR2G. SN74AHCT257PWR is the first replacement review candidate selected from the replacement research batch. Signals: eol, product-discontinuance.
74HCT257PW,118 datasheet (alternative-datasheet)
74HCT257PW,118 is a 5 V TTL-input mux P2P-review candidate for MC74VHCT257ADTR2G; validate pinout, speed, and output drive. Signals: p2p.
SN74AHCT257PWR datasheet (alternative-datasheet)
SN74AHCT257PWR is a 5 V TTL-input mux P2P-review candidate for MC74VHCT257ADTR2G; validate pinout, speed, and output drive. Signals: p2p.
SN74AHCT257QPWRQ1 datasheet (alternative-datasheet)
SN74AHCT257QPWRQ1 is a 5 V TTL-input mux P2P-review candidate for MC74VHCT257ADTR2G; validate pinout, speed, and output drive. Signals: p2p.
74HC257PW,118 datasheet (alternative-datasheet)
74HC257PW,118 is a functional replacement path for MC74VHCT257ADTR2G; package, input-threshold, or supply-family differences require review. Signals: functional.

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