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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20TSSOP
- Series：74HCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-TSSOP
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Input Capacitance：10 pF
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The CD74HCT574QPWRG4Q1 is an automotive-grade octal D-type flip-flop manufactured by Texas Instruments. It features eight positive-edge-triggered flip-flops with three-state outputs, designed for high-speed CMOS logic applications. The device operates within a supply voltage range of 2V to 6V and is housed in a 20-pin TSSOP package. It offers a propagation delay of 8.1 ns and can drive 15 LSTTL loads, ensuring compatibility with standard digital interfaces.
Feature Summary
- Automotive-grade reliability compliant with AEC-Q100 standards
- Octal configuration with three-state output capability
- Positive-edge triggering mechanism for precise data latching
- High-speed CMOS technology supporting 15 LSTTL load driving
Applications
- Automotive data bus interface systems
- High-speed digital signal processing circuits
- Memory buffer and register applications
- Industrial control system logic gates
Procurement Notes
Verify the specific suffix G4Q1 indicates tape-and-reel packaging and automotive qualification status. Confirm that the manufacturer's datasheet explicitly lists this part number as an active production component. Ensure that the ordering information matches the required package type and temperature range specifications before finalizing procurement orders.
Selection Notes
Select this component when an octal D-type flip-flop with three-state outputs is required for automotive or industrial environments. It is suitable for designs needing high-speed performance with LSTTL compatibility. Consider the 20-TSSOP package constraints and operating voltage range of 2V to 6V during circuit design integration.
Part Context
This part belongs to the CD74HCT574 family of octal D-type flip-flops. It is specifically qualified for automotive applications under the Q1 designation. The device provides a robust solution for digital storage and buffering tasks in harsh environmental conditions, maintaining signal integrity through its three-state output architecture.
Replacement Considerations
Direct substitutes include other automotive-qualified octal D-type flip-flops from Texas Instruments such as the SN74LV8T574QPWRQ1, provided voltage levels and pinout compatibility are verified. Cross-reference datasheets to ensure equivalent propagation delays and output drive capabilities.
