74FCT162827ATPACT Equivalent & Substitute Parts

Part Overview

The 74FCT162827ATPACT is a non-inverting buffer logic IC manufactured by Texas Instruments, featuring 2 elements with 10 bits per element and 3-state output capability. Housed in a 56-TSSOP package, this component operates across a 4.5V to 5.5V supply voltage range with 24mA output current capability. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

74FCT162827ATPACT

Texas InstrumentsIn Stock: 110074FCT162827ATPACT Datasheet

Current PartRFQ

SN74ALVCH16827DGGR

Texas InstrumentsIn Stock: 2640SN74ALVCH16827DGGR Datasheet

MFR RecommendedRFQ

74FCT162827CTPACT

Cypress Semiconductor CorpIn Stock: 2897874FCT162827CTPACT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74FCT162827ATPACT are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Logic type: Buffer, Non-Inverting
• Number of elements: 2
• Number of bits per element: 10
• Output type: 3-State
• Output current capability: 24mA (both high and low)
• Package type: 56-TFSOP
• Operating temperature range: -40°C ~ 85°C (TA)

Two substitute categories exist:

Parametric Equivalent (74FCT162827CTPACT): Maintains identical electrical specifications including 4.5V to 5.5V supply voltage range, produced by Cypress Semiconductor Corp, and carries active product status.

Manufacturer Recommended Substitute (SN74ALVCH16827DGGR): Differs in supply voltage range (1.65V to 3.6V) but maintains all other functional parameters including logic type, element count, bit width, output type, current ratings, package configuration, and operating temperature range. Produced by Texas Instruments with active product status.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement in 5V systems: The 74FCT162827CTPACT (Cypress Semiconductor Corp) provides parametric equivalence with identical supply voltage specifications (4.5V ~ 5.5V) and active product status, ensuring long-term availability and supply chain continuity.

For flexible voltage operation: The SN74ALVCH16827DGGR (Texas Instruments) operates across a reduced supply voltage range (1.65V ~ 3.6V) while maintaining all functional parameters. This part is suitable for applications where lower voltage operation is acceptable or beneficial. As a Texas Instruments product with active status, it offers manufacturer continuity.

Both substitute parts maintain ROHS3 compliance and MSL Level 1 ratings where specified, ensuring compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALVCH16827DGGR directly replace the 74FCT162827ATPACT in all applications?

A: The SN74ALVCH16827DGGR maintains functional equivalence in logic type, element count, bit width, output type, current ratings, package, and operating temperature. However, it operates at 1.65V to 3.6V supply voltage versus the original 4.5V to 5.5V range. Substitution is valid only if your system voltage falls within the 1.65V to 3.6V window or can be adapted to this range.

Q: What is the difference between the 74FCT162827CTPACT and SN74ALVCH16827DGGR?

A: The 74FCT162827CTPACT maintains identical electrical specifications including supply voltage range (4.5V ~ 5.5V), making it a true parametric equivalent. The SN74ALVCH16827DGGR differs only in supply voltage range (1.65V ~ 3.6V) but is functionally equivalent in all other parameters. Selection depends on your system voltage requirements.

Q: Are all substitute parts available in the same package?

A: Yes. All parts listed—74FCT162827ATPACT, 74FCT162827CTPACT, and SN74ALVCH16827DGGR—use the 56-TFSOP package with identical physical dimensions (0.240", 6.10mm Width), ensuring mechanical compatibility and PCB layout interchangeability.

Q: Why is the original 74FCT162827ATPACT obsolete?

A: The 74FCT162827ATPACT is classified as obsolete by Texas Instruments. Active alternatives are available to support ongoing production and new designs without supply chain interruption.

Q: Do the substitute parts meet the same compliance standards?

A: Both active substitute parts maintain ROHS3 compliance. The SN74ALVCH16827DGGR and 74FCT162827ATPACT both specify MSL Level 1 (Unlimited). Compliance documentation should be verified with the respective manufacturers for specific application requirements.