74FCT162374CTPACT Equivalent & Substitute Parts

Part Overview

The 74FCT162374CTPACT is a dual 8-bit D-type flip-flop logic integrated circuit manufactured by Texas Instruments in a 48-TFSOP surface mount package. This component functions as a standard positive edge-triggered flip-flop with tri-state, non-inverted outputs, designed for digital logic applications requiring dual 8-bit storage and control.

The 74FCT162374CTPACT is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this logic function.

Substiute Parts

74FCT162374CTPACT

Texas InstrumentsIn Stock: 424374FCT162374CTPACT Datasheet

Current PartRFQ

SN74ALVCH162374GR

Texas InstrumentsIn Stock: 3810SN74ALVCH162374GR Datasheet

MFR RecommendedRFQ

74FCT163374CPAG

IDT, Integrated Device Technology IncIn Stock: 757374FCT163374CPAG Datasheet

MFR RecommendedRFQ

74FCT163374CPAG8

IDT, Integrated Device Technology IncIn Stock: 358574FCT163374CPAG8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74FCT162374CTPACT are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Functional Parameters:

• Type: D-Type Flip-Flop
• Number of Elements: 2
• Number of Bits per Element: 8
• Output Type: Tri-State, Non-Inverted
• Trigger Type: Positive Edge
• Operating Temperature Range: -40°C ~ 85°C

Mechanical Parameters:

• Package / Case: 48-TFSOP (0.240", 6.10mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts listed maintain these core parameters while offering variations in supply voltage ranges, propagation delay characteristics, and quiescent current specifications. These variations reflect different logic family implementations (74ALVCH and 74FCT163374) that preserve the fundamental dual 8-bit D-type flip-flop function and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

SN74ALVCH162374GR (Texas Instruments, Active Status)

The SN74ALVCH162374GR is an active product from Texas Instruments offering the most direct functional equivalence to the obsolete 74FCT162374CTPACT. This substitute maintains identical dual 8-bit D-type flip-flop architecture, positive edge triggering, tri-state non-inverted outputs, and 48-TFSOP package form factor. The SN74ALVCH162374GR operates across a reduced supply voltage range (1.65V ~ 3.6V) compared to the original part (4.5V ~ 5.5V), with lower quiescent current (40 µA versus 500 µA) and reduced output drive capability (12mA versus 24mA). This part is ROHS3 compliant with MSL 1 rating. Selection of this substitute is appropriate for new designs or production transitions where the lower voltage operation and reduced power consumption are compatible with system requirements.

74FCT163374CPAG and 74FCT163374CPAG8 (IDT, Active Status)

The 74FCT163374CPAG and 74FCT163374CPAG8 are active products from Integrated Device Technology Inc. maintaining the 74FCT series designation and dual 8-bit D-type flip-flop function. These parts operate at 2.7V ~ 3.6V supply voltage and preserve the 48-TFSOP package form factor. These substitutes are functionally compatible with the original 74FCT162374CTPACT for applications operating within the 3.3V logic domain. The distinction between CPAG and CPAG8 variants reflects packaging differences (bulk versus reel packaging) without affecting electrical function.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALVCH162374GR directly replace the 74FCT162374CTPACT in existing designs?

A: The SN74ALVCH162374GR provides functional equivalence in dual 8-bit D-type flip-flop operation, positive edge triggering, and tri-state output configuration. However, the supply voltage range differs significantly (1.65V ~ 3.6V versus 4.5V ~ 5.5V). Direct substitution is possible only in systems operating at 3.3V or lower supply voltages. Output drive capability is reduced (12mA versus 24mA), which may impact applications with high capacitive loads.

Q: What is the primary difference between the 74FCT163374CPAG and 74FCT163374CPAG8?

A: Both parts are electrically identical dual 8-bit D-type flip-flops from IDT. The difference is packaging format: CPAG is supplied in bulk, while CPAG8 is supplied in tape and reel format. Functional performance and pin configuration are identical.

Q: Are all substitute parts compatible with the original 48-TFSOP package footprint?

A: Yes. All substitute parts listed (SN74ALVCH162374GR, 74FCT163374CPAG, and 74FCT163374CPAG8) use the 48-TFSOP (0.240", 6.10mm Width) package. PCB footprints and land patterns are mechanically compatible.

Q: What is the impact of reduced quiescent current in the SN74ALVCH162374GR?

A: The SN74ALVCH162374GR draws 40 µA quiescent current compared to 500 µA in the original 74FCT162374CTPACT. This represents a 92% reduction in standby power consumption, beneficial for battery-powered or power-constrained applications. This difference reflects the advanced CMOS process technology of the 74ALVCH series.

Q: Do all substitute parts maintain the same operating temperature range?

A: Yes. All substitute parts operate across the -40°C ~ 85°C temperature range, matching the original 74FCT162374CTPACT specification.

Q: Which substitute part should be selected for new product designs?

A: The SN74ALVCH162374GR is the recommended choice for new designs, as it is an active product from Texas Instruments with ROHS3 compliance and MSL 1 rating. The 74FCT163374CPAG and 74FCT163374CPAG8 are suitable alternatives for applications requiring 3.3V operation and IDT sourcing.