CY74FCT841BTPC Equivalent & Substitute Parts

Part Overview

The CY74FCT841BTPC is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring a 10:10 circuit configuration with tri-state output capability. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates within a 4.75V to 5.25V supply voltage range and is housed in a 24-DIP through-hole package.

Substiute Parts

CY74FCT841BTPC

Texas InstrumentsIn Stock: 2148CY74FCT841BTPC Datasheet

Current PartRFQ

CY74FCT841CTSOCT

Texas InstrumentsIn Stock: 968CY74FCT841CTSOCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CY74FCT841BTPC is determined by strict equivalence across the following critical parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 10:10
• Output Type: Tri-State
• Voltage - Supply: 4.75V ~ 5.25V
• Independent Circuits: 1
• Delay Time - Propagation: 1.5ns
• Current - Output High, Low: 32mA, 64mA
• Operating Temperature: -40°C ~ 85°C
• Base Product Number: 74FCT841
• RoHS Status: ROHS3 Compliant

The CY74FCT841CTSOCT qualifies as a direct functional equivalent, maintaining identical electrical specifications and performance characteristics. The primary distinction lies in packaging format: the substitute utilizes surface-mount technology (24-SOIC) rather than through-hole mounting (24-DIP).

Parameter Comparison

Engineering Selection Recommendations

The CY74FCT841CTSOCT is the designated manufacturer-recommended substitute for the obsolete CY74FCT841BTPC. Both components maintain identical electrical performance specifications and are ROHS3 compliant with unlimited moisture sensitivity ratings.

Selection between these parts is contingent upon PCB assembly methodology:

• Through-hole assembly requirements: CY74FCT841BTPC (existing inventory available)
• Surface-mount assembly requirements: CY74FCT841CTSOCT (active product status ensures long-term availability)

The CY74FCT841CTSOCT is the preferred choice for new designs due to its active product status, which guarantees continued manufacturer support and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the CY74FCT841CTSOCT directly replace the CY74FCT841BTPC in existing designs?

A: Electrical and functional compatibility is complete. PCB layout modification is required due to package format differences (24-DIP through-hole versus 24-SOIC surface-mount). Pin-to-pin electrical functionality remains identical.

Q: What is the primary reason for substitution?

A: The CY74FCT841BTPC is classified as obsolete. The CY74FCT841CTSOCT maintains active product status, ensuring manufacturer support and procurement availability.

Q: Are there compliance differences between the two parts?

A: Both components are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited). No compliance differentiation exists.

Q: What are the package dimension differences?

A: The CY74FCT841BTPC uses 24-DIP packaging (0.300", 7.62mm). The CY74FCT841CTSOCT uses 24-SOIC packaging (0.295", 7.50mm Width). Both maintain the same pin count and electrical interface.

Q: Are propagation delay specifications identical?

A: Yes. Both components specify 1.5ns propagation delay time, ensuring equivalent timing performance in circuit applications.