CY74FCT16841CTPVC Equivalent & Substitute Parts

Part Overview

The CY74FCT16841CTPVC is a D-Type Transparent Latch logic IC featuring a 20-bit bus interface with 2 independent 10:10 channels and tri-state output configuration. Manufactured by Texas Instruments in a 56-SSOP surface mount package, this component operates across a 4.5V to 5.5V supply voltage range with 1.5ns propagation delay.

The CY74FCT16841CTPVC carries an Obsolete product status. Identifying equivalent substitute parts is essential for ongoing system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Substiute Parts

CY74FCT16841CTPVC

Texas InstrumentsIn Stock: 838CY74FCT16841CTPVC Datasheet

Current PartRFQ

SN74ALVCH16841DLR

Texas InstrumentsIn Stock: 2226SN74ALVCH16841DLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CY74FCT16841CTPVC is determined by the following critical parameters:

Functional Equivalence: Logic type (D-Type Transparent Latch), circuit configuration (10:10 dual channel), and output type (tri-state) must remain identical.

Package Compatibility: The 56-BSSOP surface mount package with 0.295" width and 7.50mm height must be maintained for PCB layout compatibility.

Electrical Performance: Operating temperature range (-40°C ~ 85°C) and pin configuration must align with the original design.

Supply Voltage Consideration: While the CY74FCT16841CTPVC operates at 4.5V ~ 5.5V (standard TTL logic levels), substitute parts may operate at different voltage ranges provided the system design accommodates the voltage specification.

The SN74ALVCH16841DLR meets all functional and package requirements while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALVCH16841DLR is the qualified substitute for the CY74FCT16841CTPVC based on the following criteria:

Functional Compatibility: Both parts implement identical D-Type Transparent Latch logic with 10:10 dual-channel configuration and tri-state output in the same 56-BSSOP package footprint.

Product Status: The SN74ALVCH16841DLR maintains Active product status with established supply chain availability, addressing the obsolescence of the original CY74FCT16841CTPVC.

Compliance Alignment: Both components are ROHS3 compliant and REACH unaffected, maintaining regulatory consistency in system design.

Performance Enhancement: The SN74ALVCH16841DLR delivers faster propagation delay (1ns versus 1.5ns) and operates across a lower voltage range (1.65V ~ 3.6V), supporting modern low-power system architectures while maintaining backward compatibility through the identical package and pin configuration.

System Integration: Substitution requires verification that the target system design accommodates the SN74ALVCH16841DLR supply voltage specification. Systems designed for 5V operation require voltage regulation or level-shifting circuitry to interface with the 1.65V ~ 3.6V supply range of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALVCH16841DLR directly replace the CY74FCT16841CTPVC without PCB modifications?

A: The SN74ALVCH16841DLR uses the identical 56-BSSOP package with matching pin configuration, enabling direct PCB footprint compatibility. However, system-level integration requires verification of supply voltage compatibility. The CY74FCT16841CTPVC operates at 4.5V ~ 5.5V, while the SN74ALVCH16841DLR operates at 1.65V ~ 3.6V. If your system uses 5V logic levels, additional voltage regulation or level-shifting circuitry is necessary.

Q: What are the key functional differences between these parts?

A: Both parts implement identical D-Type Transparent Latch logic with 10:10 dual-channel configuration and tri-state output. The primary differences are supply voltage range, propagation delay (1ns versus 1.5ns), and output current specifications (24mA/24mA versus 32mA/64mA). These differences do not affect functional equivalence for latch operation.

Q: Why is the CY74FCT16841CTPVC marked as Obsolete?

A: The CY74FCT16841CTPVC has reached end-of-life status in the manufacturer's product portfolio. The SN74ALVCH16841DLR represents the active successor technology, offering improved performance characteristics and continued manufacturing support.

Q: Are there any compliance or certification concerns with substitution?

A: Both the CY74FCT16841CTPVC and SN74ALVCH16841DLR maintain ROHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution in regulated applications.

Q: What is the propagation delay improvement with the substitute part?

A: The SN74ALVCH16841DLR provides 1ns propagation delay compared to 1.5ns for the CY74FCT16841CTPVC, representing a 33% improvement in switching speed. This enhancement supports higher-frequency system operation without functional changes to the latch circuit.