CY74FCT16841ATPVC Equivalent & Substitute Parts

Part Overview

The CY74FCT16841ATPVC is a 20-bit bus interface D-type transparent latch with dual 10:10 channel configuration and tri-state output capability. Manufactured by Texas Instruments in 56-SSOP surface mount packaging, this logic component operates across a 4.5V to 5.5V supply voltage range with 1.5ns propagation delay and 32mA/64mA output drive capability.

The CY74FCT16841ATPVC is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

CY74FCT16841ATPVC

Texas InstrumentsIn Stock: 2298CY74FCT16841ATPVC Datasheet

Current PartRFQ

SN74ALVCH16841DLR

Texas InstrumentsIn Stock: 2226SN74ALVCH16841DLR Datasheet

MFR RecommendedRFQ

CY74FCT16841CTPVC

National SemiconductorIn Stock: 1247CY74FCT16841CTPVC Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CY74FCT16841ATPVC are classified into two categories based on parametric alignment:

Parametric Equivalent (CY74FCT16841CTPVC): This substitute maintains identical electrical specifications including 4.5V ~ 5.5V supply voltage, 1.5ns propagation delay, and 32mA/64mA output drive. The 74FCT series designation confirms functional and pin compatibility. This part is classified as active and provides direct replacement capability with no design modifications required.

Manufacturer Recommended Substitute (SN74ALVCH16841DLR): This substitute provides functional equivalence through the same D-type transparent latch architecture with 2 Channel 10:10 configuration and tri-state output. However, it operates at a reduced supply voltage range of 1.65V ~ 3.6V with improved propagation delay of 1ns and symmetrical output drive of 24mA. The 74ALVCH series represents an advanced logic family suitable for lower-voltage applications. This part is classified as active and requires voltage compatibility verification in the target application.

Both substitutes maintain identical package specifications (56-BSSOP), mounting type (surface mount), operating temperature range (-40°C ~ 85°C), and compliance certifications (ROHS3, MSL 1).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes): Select CY74FCT16841CTPVC. This parametric equivalent maintains all electrical specifications of the CY74FCT16841ATPVC, including supply voltage range, propagation delay, and output drive characteristics. Both parts belong to the 74FCT logic family and are pin-compatible. The CY74FCT16841CTPVC is classified as active, ensuring continued availability and supply chain support.

For New Designs or Voltage-Compatible Applications: Select SN74ALVCH16841DLR. This manufacturer-recommended substitute offers superior performance characteristics including faster propagation delay (1ns vs. 1.5ns) and operates across a lower supply voltage range (1.65V ~ 3.6V). The 74ALVCH series represents advanced CMOS logic technology suitable for modern low-voltage system architectures. Verify that the target application supports the 1.65V ~ 3.6V supply voltage range and that the symmetrical 24mA output drive meets load requirements. This part is classified as active with established supply chain availability.

Both substitutes maintain identical package form factor, mounting type, operating temperature range, and compliance certifications, ensuring mechanical and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT16841CTPVC be used as a direct replacement for CY74FCT16841ATPVC?

A: Yes. CY74FCT16841CTPVC is a parametric equivalent with identical electrical specifications, pin configuration, and package form factor. No design modifications are required for direct substitution.

Q: What is the primary difference between CY74FCT16841CTPVC and SN74ALVCH16841DLR?

A: The primary difference is supply voltage range. CY74FCT16841CTPVC operates at 4.5V ~ 5.5V (matching the original part), while SN74ALVCH16841DLR operates at 1.65V ~ 3.6V. SN74ALVCH16841DLR also provides faster propagation delay (1ns vs. 1.5ns) but with symmetrical output drive (24mA vs. asymmetrical 32mA/64mA).

Q: Are both substitute parts pin-compatible with the original CY74FCT16841ATPVC?

A: Yes. Both substitutes use the identical 56-BSSOP package with the same pin configuration, enabling direct PCB-level replacement without layout modifications.

Q: Which substitute should be selected for a 3.3V system?

A: SN74ALVCH16841DLR is suitable for 3.3V systems, as its supply voltage range of 1.65V ~ 3.6V encompasses 3.3V operation. CY74FCT16841CTPVC requires 4.5V ~ 5.5V and is not suitable for 3.3V applications.

Q: Are both substitutes RoHS compliant?

A: Yes. Both CY74FCT16841CTPVC and SN74ALVCH16841DLR are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited), matching the compliance profile of the original CY74FCT16841ATPVC.

Q: What is the impact of the output drive difference between CY74FCT16841CTPVC and SN74ALVCH16841DLR?

A: CY74FCT16841CTPVC provides asymmetrical drive (32mA high / 64mA low), while SN74ALVCH16841DLR provides symmetrical drive (24mA both directions). Verify that connected load impedance and signal integrity requirements are met by the 24mA drive capability of SN74ALVCH16841DLR before selection.