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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SOIC
- Series：74FCT
- Mfr：Texas Instruments
- Package：Tube
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：250 MHz
- Max Propagation Delay @ V, Max CL：6.5ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：15mA, 12mA
- Voltage - Supply：4.75V ~ 5.25V
- Current - Quiescent (Iq)：200 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Input Capacitance：5 pF
- Grade：-
- Qualification：-
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Overview
The CY74FCT2574TSOCE4 is an octal transparent latch manufactured by Texas Instruments, belonging to the FCT logic series. It features eight D-type latches with three-state outputs and operates within a supply voltage range of 4.75 V to 5.25 V. The device utilizes a 20-pin SOIC package and supports surface mount installation. It provides non-inverting data transmission with high drive capability, suitable for bus-oriented systems requiring reliable data storage and transfer under standard industrial temperature conditions.
Feature Summary
- Octal transparent latch architecture providing eight independent data storage channels
- Three-state outputs enabling direct connection to system buses without external buffers
- High current drive capability supporting robust signal integrity in digital circuits
Applications
- Bus-oriented memory mapping applications
- I/O port expansion in embedded systems
- Temporary data storage in digital communication interfaces
Procurement Notes
Verify the complete part number including the suffix E4 to confirm lead-free status and RoHS compliance. Ensure the package type matches the required PCB footprint. Confirm that the operating temperature range meets the specific environmental requirements of the target application before finalizing procurement.
Selection Notes
Select this component when an octal latch with three-state output control is required for bus interfacing. Consider the FCT series compatibility with TTL inputs if driving from legacy logic families. Evaluate the package constraints against available board space and ensure thermal management aligns with the specified operating temperature range.
Part Context
This component is part of the broader CY74FCT family of fast CMOS logic devices. It shares functional similarities with other octal latches like the CY74FCT573 but offers specific pinout and electrical characteristics defined by the Texas Instruments design. The E4 suffix indicates environmental compliance attributes distinct from standard commercial variants.
Replacement Considerations
Cross-reference with CY74FCT2573TSOC or CY74FCT2574ATQCTG4 for potential equivalents. Verify pin compatibility and electrical specifications before substitution. Ensure the alternative device supports the same three-state output functionality and voltage requirements.
