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Product Detailed Parameters
- Description：D FLIP-FLOP, FCT SERIES, 8-BIT
- Series：*
- Mfr：Texas Instruments
- Package：Tube
- 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 CY74FCT273ATQC is an octal D-type flip-flop with clear, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features TTL-compatible inputs with CMOS outputs. The device provides non-inverting logic in a 20-SSOP package. Key electrical parameters include a propagation delay of 7.2 ns at 50 pF load, high-level output current of 32 mA, and low-level output current of 64 mA. Static current consumption is 200 µA. It supports a working temperature range from -40°C to +85°C and includes a master reset function.
Feature Summary
- Octal D-type flip-flop architecture with dedicated clear input for immediate data resetting
- TTL-compatible input thresholds ensuring direct interface with standard logic families
- CMOS output structure providing high noise immunity and low static power consumption
- Non-inverting polarity maintaining signal directionality across all eight channels
Applications
- Parallel-to-serial data conversion circuits requiring edge-triggered storage
- High-speed buffer applications in digital communication interfaces
- Register stages in microprocessor-based system memory architectures
- Data latch modules for temporary storage in control logic systems
Procurement Notes
Verify the specific suffix 'ATQC' against the manufacturer's official ordering guide to confirm package type, temperature grade, and tape/reel specifications. Ensure compatibility with existing PCB footprints for the 20-SSOP form factor. Cross-reference moisture sensitivity levels and reflow soldering profiles during procurement planning to prevent component damage during assembly processes.
Selection Notes
Select this component when designing systems requiring octal data storage with fast switching speeds and TTL input compatibility. The 7.2 ns propagation delay suits high-frequency digital applications. Consider the 20-SSOP package constraints for space-limited designs. Validate that the 32 mA/64 mA drive capabilities meet the load requirements of downstream circuitry without additional buffering.
Part Context
This part belongs to the Texas Instruments 74FCT logic family, which combines BiCMOS technology for speed with CMOS power efficiency. The FCT series is designed for high-performance digital applications, offering faster switching than standard 74LS logic while maintaining lower power consumption than ECL. The CY74FCT273 variant specifically addresses the need for parallel data retention in complex digital systems.
Replacement Considerations
Check for direct substitutes such as CY74FCT273ATQCT or CD74FCT273ME4, ensuring pinout and electrical characteristics match. Verify if alternative packages like SOIC or PDIP are acceptable for the application. Confirm that any replacement maintains the same voltage range and temperature specifications.
