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Product Detailed Parameters
- Description：BUS DRIVER, FCT SERIES
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Function：-
- Type：-
- Output Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Clock Frequency：-
- Max Propagation Delay @ V, Max CL：-
- Trigger Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Current - Quiescent (Iq)：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The CD74FCT574M is a BiCMOS octal edge-triggered D-type flip-flop featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and supports TTL input levels. The device provides high drive capability with output currents of -15 mA (high) and 64 mA (low). It exhibits a propagation delay of 10 ns and functions reliably across an operating temperature range of 0°C to +70°C. Packaged in a 20-pin SOIC, it integrates eight independent D-type flip-flops for parallel data storage applications.
Feature Summary
- Octal configuration providing eight independent edge-triggered D-type flip-flops for parallel data handling.
- Three-state outputs enable direct connection to multiplexed data buses without external switching logic.
- BiCMOS technology ensures high-speed operation with low power consumption relative to standard TTL.
Applications
- Parallel data storage in digital systems
- Bus driver interfaces requiring tri-state control
- High-speed register files in computing architectures
Procurement Notes
Verify the specific suffix 'M' corresponds to the SOIC-20 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors, as environmental declarations may vary by production batch. Ensure the supplier provides valid traceability for the Texas Instruments brand to guarantee component authenticity and performance reliability.
Selection Notes
Select this component for designs requiring octal storage with bus-compatible tri-state outputs. The FCT series offers faster switching speeds than standard 74LS counterparts while maintaining TTL compatibility. Consider the SOIC-20 package constraints regarding thermal dissipation and board space. Verify that the system's clock frequency remains within the 10 ns propagation delay limits to ensure timing integrity.
Part Context
This part belongs to the CD74FCT574 family of BiCMOS logic devices from Texas Instruments. It serves as a high-performance alternative to legacy 74-series flip-flops, offering improved speed and drive strength. The FCT series is designed for applications demanding rapid data transfer and efficient bus management in complex digital circuits.
Replacement Considerations
Compatible substitutes include the SN74FCT574T and CY74FCT574TSOC. These alternatives maintain similar functional specifications but may differ in package type or manufacturing process. Verify pinout compatibility and electrical characteristics before substitution.
