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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SOP
- Series：74VHCT
- Mfr：Fairchild Semiconductor
- 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：130 MHz
- Max Propagation Delay @ V, Max CL：10.4ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：8mA, 8mA
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Iq)：4 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SOP
- Package / Case：20-SOIC (0.209", 5.30mm Width)
- Input Capacitance：4 pF
- Grade：-
- Qualification：-
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Overview
The Fairchild Semiconductor 74VHCT374ASJ is an octal D-type flip-flop featuring eight positive-edge-triggered D inputs and tri-state outputs. It operates within a temperature range of -40°C to 85°C and utilizes a 20-SOP package with a width of 5.30mm. The device provides non-inverted logic functionality, allowing for direct data storage and output control in digital circuits.
Feature Summary
- Octal configuration providing eight independent D-type flip-flops
- Positive-edge-triggered input sampling mechanism
- Tri-state output capability for bus line driving applications
Applications
- Parallel-to-serial data conversion systems
- Buffering and latching operations in digital logic circuits
- General-purpose storage elements in microprocessor-based designs
Procurement Notes
Verify component authenticity through authorized distributors due to the device's obsolete status. Confirm that the 20-SOP package dimensions match the required PCB footprint. Ensure compliance with RoHS standards if lead-free composition is mandatory for the specific assembly process. Check for cross-manufacturer datasheet variations regarding electrical characteristics.
Selection Notes
Select this component when an octal D-type latch with tri-state outputs is required for 5V logic interfaces. The VHCT technology ensures compatibility with standard CMOS devices while maintaining TTL-compatible input thresholds. Consider the operating temperature range and package constraints during circuit layout planning.
Part Context
This part belongs to the 74VHCT series of high-speed CMOS logic devices manufactured by Fairchild Semiconductor, now part of onsemi. The 74VHCT374A variant represents a widely used octal flip-flop solution. The ASJ suffix denotes the specific SOP package and tape-and-reel or tube packaging format.
Replacement Considerations
Equivalent parts include STMicroelectronics 74VHCT374A and onsemi MC74VHCT374. Verify pinout compatibility and electrical specifications before substitution. Note that some variants may differ in packaging options or production status.
