74VCX16245GX Equivalent & Substitute Parts

Part Overview

The 74VCX16245GX is a non-inverting bus transceiver IC manufactured by onsemi, designed for 2-element, 8-bit-per-element applications with 3-state output capability. This component operates across a supply voltage range of 1.2V to 3.6V and is housed in a 54-LFBGA package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations where this logic family is specified.

Substiute Parts

74VCX16245GX

onsemiIn Stock: 128674VCX16245GX Datasheet

Current PartRFQ

74VCX16245MTDX

Fairchild SemiconductorIn Stock: 512474VCX16245MTDX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74VCX16245GX is determined by strict equivalence across the following critical parameters:

• Logic Family & Function: 74VCX series, non-inverting transceiver configuration
• Electrical Specifications: 2 elements, 8 bits per element, 3-state output, 24mA output drive capability
• Supply Voltage Range: 1.2V ~ 3.6V compatibility
• Operating Temperature Range: -40°C ~ 85°C
• Base Product Number: 74VCX16245

The 74VCX16245MTDX qualifies as a functional substitute based on matching all electrical and logical parameters. The primary distinction lies in packaging format: the substitute uses a 48-TSSOP package instead of the original 54-LFBGA, and the substitute maintains active product status.

Parameter Comparison

Engineering Selection Recommendations

The 74VCX16245MTDX is electrically and functionally equivalent to the 74VCX16245GX across all specified parameters. Selection between these parts should be based on:

Product Status: The 74VCX16245MTDX maintains active product status, ensuring continued availability and manufacturing support. The original 74VCX16245GX is obsolete, limiting future procurement options.

Compliance & Certifications: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, maintaining regulatory equivalence.

Package Consideration: The substitute employs a 48-TSSOP package versus the original 54-LFBGA. This packaging difference requires PCB layout modification and is not a pin-for-pin replacement. Design validation is necessary to confirm mechanical and electrical fit within the target application.

Frequently Asked Questions (FAQ)

Q: Can the 74VCX16245MTDX directly replace the 74VCX16245GX on existing PCBs?

A: No. The 74VCX16245MTDX uses a 48-TSSOP package while the original uses 54-LFBGA. These are not pin-compatible packages. PCB redesign is required for physical and electrical integration.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts share identical supply voltage range (1.2V ~ 3.6V), output drive current (24mA), operating temperature range (-40°C ~ 85°C), and logic configuration (2 elements, 8 bits per element, 3-state output).

Q: Why is the original part marked as obsolete?

A: The 74VCX16245GX is classified as obsolete by onsemi. The 74VCX16245MTDX from Fairchild Semiconductor remains in active production, making it the preferred choice for new designs and ongoing system support.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching the 74VCX logic family, non-inverting transceiver function, 2-element 8-bit configuration, 3-state output capability, 24mA drive current, 1.2V–3.6V supply range, and -40°C to 85°C operating temperature.

Q: Are there compliance or regulatory differences between these parts?

A: No. Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, ensuring regulatory equivalence for export and trade purposes.