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Product Detailed Parameters
- Description：OCTAL D REGISTER (3-STATE)
- Series：-
- Mfr：IDT, Integrated Device Technology Inc
- Package：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：-
- Trigger Type：Positive Edge
- Current - Output High, Low：15mA, 48mA
- Voltage - Supply：4.75V ~ 5.25V
- Current - Quiescent (Iq)：1 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-QSOP
- Package / Case：20-SSOP (0.154", 3.90mm Width)
- Input Capacitance：6 pF
- Grade：-
- Qualification：-
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Overview
The IDT74FCT374TQ is an octal D-type flip-flop register manufactured by Integrated Device Technology. It features eight D-type flip-flops with a buffered common clock and buffered three-state outputs. The device operates within a supply voltage range of 4.75V to 5.25V and supports a maximum propagation delay of 10ns at 5V with a 50pF load. It includes hysteresis on all inputs for noise immunity and low ground bounce outputs. The component is housed in a 20-pin SSOP package and is rated for an industrial operating temperature range from -40°C to +85°C.
Feature Summary
- Octal D-type flip-flop configuration with buffered common clock
- Three-state outputs controlled by active-low output enable
- Input hysteresis for enhanced noise immunity
- Low ground bounce output design
Applications
- High-speed data buffering in digital systems
- Parallel-to-serial conversion circuits
- Register stages in microprocessor-based designs
- Bus interface logic applications
Procurement Notes
Verify the specific suffix 'TQ' against the manufacturer's current datasheet to confirm the exact package dimensions and tape-and-reel specifications. Ensure the procurement source provides RoHS compliance documentation, as older batches may differ. Cross-reference the part number with Texas Instruments resources, as they acquired IDT's logic product lines, to validate current availability and manufacturing status.
Selection Notes
Select this component when an octal register with three-state outputs is required for high-speed CMOS applications. It serves as a pin-compatible alternative to bipolar FAST series devices while offering lower power consumption. Consider the 20-pin SSOP package constraints for PCB layout. Verify that the system voltage remains within the 4.75V to 5.25V range to ensure proper logic level compatibility and performance.
Part Context
This part belongs to the FCT (Fast CMOS) logic family, designed to bridge the performance gap between standard CMOS and bipolar TTL technologies. The 74FCT374 variant specifically provides octal storage capabilities. Integrated Device Technology was a prominent manufacturer in this sector before its acquisition by Texas Instruments, which now manages the legacy product portfolio.
Replacement Considerations
Texas Instruments CY74FCT374TQCT is a confirmed direct replacement with identical electrical characteristics and pinout. Other compatible variants include the PI74FCT374T from Pericom Semiconductor. Verify package equivalence when substituting with non-TI manufacturers.
