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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SSOP
- Series：74HC
- Mfr：Nexperia USA Inc.
- Package：Bulk,Tube
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：133 MHz
- Max Propagation Delay @ V, Max CL：26ns @ 6V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：7.8mA, 7.8mA
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Iq)：8 µA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SSOP
- Package / Case：20-SSOP (0.209", 5.30mm Width)
- Input Capacitance：3.5 pF
- Grade：-
- Qualification：-
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Overview
The Nexperia 74HC574DB,112 is an octal D-type flip-flop with positive edge triggering and three-state outputs. It operates within a supply voltage range of 2V to 6V. The device features a propagation delay of 32ns at 6V with 150pF load. Output drive capability is specified as 7.8mA for both high and low states. It utilizes a 20-SOIC package (0.295 inch width) and supports surface mount installation. The component functions as a single circuit with eight bits per element.
Feature Summary
- Positive edge-triggered data storage mechanism
- Three-state output configuration for bus driving
- CMOS compatible input and output interfaces
Applications
- Parallel-to-serial data conversion circuits
- General-purpose register applications
- Memory buffer implementations
Procurement Notes
Verify current availability status as the product may be discontinued or subject to limited supply constraints. Confirm RoHS compliance details and moisture sensitivity level prior to procurement. Ensure the 20-SOIC package dimensions match the target PCB footprint requirements. Check for alternative packages if tube packaging is not suitable for the assembly process.
Selection Notes
Select this component when an octal D-type flip-flop with three-state outputs is required in a 20-pin surface mount package. Consider the 2V to 6V operating voltage range for compatibility with system power rails. Evaluate the 32ns propagation delay against timing requirements. Verify that the 7.8mA output drive capability meets the load requirements of the connected circuitry.
Part Context
This part belongs to the 74HC series of logic integrated circuits manufactured by Nexperia USA Inc. It is functionally identical to the HC374A but offers a different pinout arrangement to facilitate printed circuit board layout. The device is designed for standard CMOS applications and provides robust performance across a wide temperature range.
Replacement Considerations
Direct substitutes include SN74HC574DWR from Texas Instruments and MC74HC574ADWG from onsemi. These alternatives offer similar functional characteristics and pin configurations. Verify package compatibility and electrical specifications before substitution.
