74FCT162827CTPACT Equivalent & Substitute Parts

Part Overview

The 74FCT162827CTPACT is a non-inverting buffer IC with 2 elements, 10 bits per element, and 3-state output capability. Manufactured by Texas Instruments in the 74FCT series, this component operates at 4.5V to 5.5V supply voltage and is packaged in a 56-TSSOP form factor. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

74FCT162827CTPACT

Texas InstrumentsIn Stock: 77874FCT162827CTPACT Datasheet

Current PartRFQ

SN74ALVCH16827DGGR

Texas InstrumentsIn Stock: 2640SN74ALVCH16827DGGR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74FCT162827CTPACT is determined by the following critical parameters:

• Logic function: Non-inverting buffer with identical element and bit configuration (2 elements, 10 bits per element)
• Output architecture: 3-state output capability
• Output current capability: 24mA high and low
• Package form factor: 56-TFSOP physical dimensions
• Operating temperature range: -40°C to 85°C

The substitute part SN74ALVCH16827DGGR maintains functional equivalence across these core parameters. While the supply voltage range differs (1.65V to 3.6V versus 4.5V to 5.5V), the substitute operates within a lower voltage envelope suitable for modern low-voltage applications. Both parts share identical packaging, element configuration, and output specifications.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALVCH16827DGGR is the manufacturer-recommended substitute for the obsolete 74FCT162827CTPACT. Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility.

The primary distinction is supply voltage range. The 74FCT162827CTPACT operates at 5V logic levels (4.5V to 5.5V), while the SN74ALVCH16827DGGR operates at lower voltage levels (1.65V to 3.6V). Selection between these parts depends on the system's power supply architecture. For 5V systems, the original part remains appropriate if inventory is available. For new designs or systems transitioning to lower voltage operation, the SN74ALVCH16827DGGR provides an active, supported alternative with identical functional and physical characteristics.

Both parts are currently in stock with substantial inventory availability, supporting immediate procurement for either replacement or new implementation scenarios.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALVCH16827DGGR directly replace the 74FCT162827CTPACT in existing designs?

A: Direct replacement is possible only if the system power supply operates within the 1.65V to 3.6V range. If the existing design uses 5V logic levels, voltage level translation or power supply modification is required. The physical package and functional logic are identical.

Q: What is the primary reason for substitution?

A: The 74FCT162827CTPACT is obsolete. The SN74ALVCH16827DGGR is the active equivalent from the same manufacturer, ensuring continued availability and support.

Q: Are the output current specifications identical?

A: Yes. Both parts deliver 24mA output current for high and low states, maintaining identical drive capability.

Q: Do both parts use the same package?

A: Yes. Both components use the 56-TFSOP package with 0.240" width and 6.10mm dimensions, ensuring mechanical compatibility and identical PCB footprints.

Q: What is the operating temperature range for both parts?

A: Both parts operate from -40°C to 85°C, providing identical thermal performance specifications.

Q: Are there compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant with MSL rating of 1 (unlimited), ensuring equivalent environmental and regulatory compliance.