74VCX245MTCX Equivalent & Substitute Parts

Part Overview

The 74VCX245MTCX is a non-inverting transceiver logic IC manufactured by onsemi, designed for 8-bit data bus applications with 3-state output capability. Operating across a supply voltage range of 1.4V to 3.6V, this component is classified as Last Time Buy status, indicating end-of-life production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Key Parameters

Parameter	Value
Manufacturer Part Number	74VCX245MTCX
Manufacturer	onsemi
Logic Type	Transceiver, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	1.4V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74VCX245MTCX is determined by the following critical parameters:

Logic Type: Transceiver, Non-Inverting (functional equivalence)
Number of Elements: 1
Number of Bits per Element: 8
Output Type: 3-State
Current - Output High, Low: 24mA, 24mA (drive capability)
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 20-TSSOP or compatible package variants
Voltage - Supply: Minimum 1.4V support required

Substitute parts are grouped into two categories:

Direct Substitutes (Identical Package): Parts with 20-TSSOP packaging that meet all electrical specifications.

Package Variant Substitutes (20-TVSOP): Parts with equivalent electrical performance but different package designations (20-TVSOP vs. 20-TSSOP), suitable for applications where package footprint compatibility is not a constraint.

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Voltage - Supply	Current Output (High/Low)	Package / Case	Product Status	Inventory
74VCX245MTCX	onsemi	74VCX	Transceiver, Non-Inverting	1.4V ~ 3.6V	24mA, 24mA	20-TSSOP	Last Time Buy	3166 Pcs
SN74ALVC245PWR	Texas Instruments	74ALVC	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TSSOP	Active	8652 Pcs
74ALVC245PW,118	Nexperia USA Inc.	74ALVC	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TSSOP	Active	1900 Pcs
SN74ALVC245DGVR	Texas Instruments	74ALVC	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TVSOP	Active	2000 Pcs
SN74ALVC245PW	Texas Instruments	74ALVC	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TSSOP	Active	1644 Pcs
SN74ALVCH245DGVR	Texas Instruments	74ALVCH	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TVSOP	Active	2764 Pcs
SN74ALVCH245PW	Texas Instruments	74ALVCH	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TSSOP	Active	1175 Pcs
SN74ALVCH245PWR	Texas Instruments	74ALVCH	Transceiver, Non-Inverting	1.65V ~ 3.6V	24mA, 24mA	20-TSSOP	Active	2200 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain Active product status with established manufacturer support, ensuring long-term availability and design stability. The 74ALVC and 74ALVCH series from Texas Instruments and Nexperia represent industry-standard alternatives with equivalent functional performance.

For applications requiring identical package footprint compatibility, select from 20-TSSOP variants: SN74ALVC245PWR, 74ALVC245PW,118, SN74ALVC245PW, SN74ALVCH245PW, or SN74ALVCH245PWR.

For applications where package variant tolerance exists, 20-TVSOP options (SN74ALVC245DGVR, SN74ALVCH245DGVR) provide additional inventory availability.

All substitute parts comply with ROHS3 and maintain MSL 1 (Unlimited) moisture sensitivity classification, matching the original component's environmental compliance profile.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVC245PWR directly replace 74VCX245MTCX without PCB modification?

A: Yes. SN74ALVC245PWR shares identical 20-TSSOP packaging, pin configuration, and electrical specifications (24mA output drive, 3-state output, 8-bit transceiver function). The minimum supply voltage of 1.65V is higher than the original 1.4V specification; verify your application operates above 1.65V.

Q: What is the difference between 20-TSSOP and 20-TVSOP packages?

A: Both are 20-pin surface mount packages with 0.173" width and 4.40mm body dimensions. TSSOP denotes Thin Shrink Small Outline Package, while TVSOP denotes Thin Very Small Outline Package. Pin pitch and footprint compatibility differ; PCB redesign is required for package conversion.

Q: Why does 74VCX245MTCX have a lower minimum supply voltage (1.4V) than substitute parts (1.65V)?

A: The 74VCX series supports extended low-voltage operation. Substitute 74ALVC and 74ALVCH series maintain functional performance at 1.65V minimum. Confirm your application's supply voltage range before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity classification, matching the original component's environmental and regulatory certifications.

Q: Which substitute offers the best inventory availability?

A: SN74ALVC245PWR (Texas Instruments, 8652 Pcs) provides the highest current stock level among 20-TSSOP variants with identical package footprint.

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