CY74FCT574TSOCT

Overview

The CY74FCT574TSOCT is an octal edge-triggered D-type flip-flop with 3-state outputs manufactured by Texas Instruments. It belongs to the FCT logic series and features a SOIC-20 surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -40°C to +85°C. Key electrical parameters include a propagation delay of 10 ns, a high-level output current of -32 mA, and a low-level output current of 64 mA. The component utilizes TTL input levels and provides non-inverting logic functionality for digital data storage applications.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single integrated circuit
• Three-state outputs allowing direct connection to multiplexed data buses without additional buffering
• Edge-triggered operation synchronized by a clock signal to capture data at specific transitions
• TTL-compatible input thresholds ensuring interoperability with standard logic families

Applications

• Parallel-to-serial data conversion circuits
• Buffer registers in microprocessor-based systems
• Data acquisition and storage interfaces
• Communication protocol handling modules

Procurement Notes

Verify the complete part number including the suffix 'TSOCT' to ensure correct package type (SOIC) and tape-and-reel packaging quantity. Confirm that the manufacturer source is Texas Instruments or an authorized distributor, as Cypress Semiconductor previously held this product line. Check RoHS compliance status and moisture sensitivity level ratings prior to placement on PCBs to prevent damage during reflow soldering processes.

Selection Notes

Select this component when an octal register with tri-state capability is required for bus-oriented designs. The FCT series offers faster switching speeds compared to standard 74F logic while maintaining CMOS power efficiency. Ensure the design accommodates the specified 4.75 V to 5.25 V supply voltage window and verify that the 10 ns propagation delay meets the system timing requirements for the intended clock frequencies.

Part Context

This device is part of the broader CY74FCT574T family, which includes variants with different packages such as QSOP (CY74FCT574TQCT) and SSOP (CY74FCT574ATQCT). The TSOC suffix specifically denotes the Small Outline Integrated Circuit package format. It serves as a fundamental building block for sequential logic circuits within the Texas Instruments logic portfolio, often used alongside other FCT series drivers and transceivers.

Replacement Considerations

Direct pin-compatible substitutes within the same package include CY74FCT574TSOCE4 and CY74FCT574TSOCG4. For alternative packaging, CY74FCT574TQCT offers the same logical function in a QSOP-20 footprint. Cross-vendor equivalents like SN74F574N exist but differ in package style and electrical characteristics.