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74AC574SCX
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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20SOIC
- Series：74AC
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Standard
- Type：D-Type
- Output Type：Tri-State, Non-Inverted
- Number of Elements：1
- Number of Bits per Element：8
- Clock Frequency：153 MHz
- Max Propagation Delay @ V, Max CL：9.5ns @ 5V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：2V ~ 6V
- Current - Quiescent (Iq)：40 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Input Capacitance：4.5 pF
- Grade：-
- Qualification：-
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Overview
The MC74AC574SCX is an octal D-type flip-flop from the onsemi 74AC logic series, housed in a 20-pin SOIC package. It features positive-edge triggering and three-state outputs with non-inverting polarity. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a propagation delay of 13.5 ns, high-level output current of -24 mA, and low-level output current of 24 mA. It supports surface mount installation and functions across a temperature range of -40°C to +85°C.
Feature Summary
- Octal D-type flip-flop architecture with single-ended inputs and outputs
- Three-state output capability for bus-oriented applications
- Positive-edge triggered data latching mechanism
- CMOS technology ensuring low static power consumption
Applications
- Parallel-to-serial data conversion circuits
- Buffering and register storage in digital systems
- Clocked memory interface implementations
- Data acquisition system input staging
Procurement Notes
Verify component authenticity through authorized onsemi distributors or certified suppliers. Confirm RoHS compliance status and manufacturing date codes against current project requirements. Ensure proper ESD handling procedures during storage and assembly. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match design specifications before integration.
Selection Notes
Select this component for designs requiring high-speed octal latching with three-state control. Compare propagation delays and drive currents against alternative logic families like HC or LVC. Evaluate package compatibility with PCB footprint constraints. Consider operating voltage ranges and thermal performance relative to system environment conditions.
Part Context
This part belongs to the standard 74AC logic family, known for high-speed CMOS operation. It serves as a fundamental building block for sequential logic circuits. Similar variants exist in HC and ACT series with different speed and voltage characteristics. The SCX suffix typically denotes a specific tape-and-reel packaging configuration for automated assembly.
Replacement Considerations
- MC74AC574DTR2G
FAQ
What is the trigger type for this flip-flop?
The device uses positive-edge triggering to latch input data.
Does the output invert the input signal?
No, the outputs are non-inverting.
