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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20QSOP
- Series：74FCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：-
- Max Propagation Delay @ V, Max CL：5.2ns @ 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：32mA, 64mA
- 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-SSOP
- Package / Case：20-SSOP (0.154", 3.90mm Width)
- Input Capacitance：5 pF
- Grade：-
- Qualification：-
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Overview
The CY74FCT574CTQCT 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 utilizes a 20-pin QSOP package for surface-mount installation. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports TTL input levels. Key electrical parameters include a propagation delay of 5.2 ns, a high-level output current of -32 mA, and a low-level output current of 64 mA. It functions as a non-inverting register with eight circuits and maintains an operating temperature range from -40°C to +85°C.
Feature Summary
- Octal edge-triggered D-type flip-flop architecture with three-state output capability
- Compatible with TTL input logic levels for direct interface integration
- High drive strength supporting significant sink and source currents
Applications
- Parallel data storage in digital systems
- Bus interface registration
- Timing synchronization circuits
Procurement Notes
Verify the specific package variant, as the CY74FCT574T series includes SSOP and SOIC options alongside the QSOP configuration. Confirm moisture sensitivity level requirements for surface-mount assembly processes. Ensure the selected part matches the required pinout and thermal characteristics for the target application environment.
Selection Notes
Select this component when an octal registered buffer with tri-state control is required. The FCT series offers CMOS performance with TTL compatibility. Consider the 5.2 ns propagation delay and 64 mA low-level output current for driving heavy loads. Verify that the 20-pin QSOP footprint fits the PCB layout constraints.
Part Context
This device is part of the CY74FCT574T family, which includes variants like the CY74FCT574ATQCT and CY74FCT574CTSOC. These components share the same logical function but differ in package types such as SSOP or SOIC. The family provides standardized octal flip-flop solutions for Texas Instruments' logic portfolio.
Replacement Considerations
CY74FCT574ATQCT
FAQ
What is the maximum low-level output current?
The maximum low-level output current is 64 mA.
Does the device support TTL inputs?
Yes, the input type is specified as TTL compatible.
