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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20DIP
- Series：74HCT
- Mfr：Texas Instruments
- Package：Tube
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：60 MHz
- Max Propagation Delay @ V, Max CL：33ns @ 4.5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：6mA, 6mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：8 µA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：20-PDIP
- Package / Case：20-DIP (0.300", 7.62mm)
- Input Capacitance：10 pF
- Grade：-
- Qualification：-
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Overview
The CD74HCT374EE4 is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the HCT logic family. It features eight independent D-type flip-flops with positive-edge triggering and three-state outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL-compatible inputs. Packaged in a 20-pin DIP, it ensures reliable data storage and transfer in digital systems.
Feature Summary
- Octal configuration providing eight independent D-type flip-flops for parallel data handling
- Positive-edge triggering mechanism synchronizes data capture on clock transitions
- Three-state outputs enable direct bus connections without additional interface hardware
- TTL-compatible input thresholds ensure seamless integration with standard logic families
Applications
- Parallel-to-serial data conversion circuits
- Shift register implementations in communication interfaces
- Memory buffer stages in microprocessor systems
- Digital signal processing data path synchronization
Procurement Notes
Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status matches project requirements. Check datasheet revisions for parameter updates. Ensure packaging integrity during storage and handling. Validate pinout compatibility with existing PCB layouts before procurement.
Selection Notes
Select this component when designing systems requiring octal data storage with bus-compatible outputs. Consider the HCT series for TTL-level interfacing needs. Evaluate propagation delay specifications against system timing constraints. Assess package size limitations for space-constrained applications. Verify operating temperature range suitability for environmental conditions.
Part Context
This part belongs to Texas Instruments' SN74HCT374 family of octal D-type flip-flops. The EE4 suffix indicates RoHS-compliant manufacturing. The HCT series provides CMOS performance with TTL-compatible inputs, bridging legacy and modern logic standards. This specific variant offers enhanced reliability for industrial and commercial applications.
Replacement Considerations
SN74HCT374N serves as a direct functional equivalent in PDIP-20 packaging. CD74HCT374E offers identical electrical characteristics with standard RoHS compliance. SN74HCT374DW provides surface-mount alternative in SOIC-20 package. Verify pinout compatibility and electrical parameters before substitution.
