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Product Detailed Parameters
- Description：HEX / QUAD D-TYPE FLIP-FLOPS
- Series：*
- Mfr：Renesas Electronics Corporation
- Package：Bulk
- Function：-
- Type：-
- Output Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Clock Frequency：-
- Max Propagation Delay @ V, Max CL：-
- Trigger Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Current - Quiescent (Iq)：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Input Capacitance：-
- Grade：-
- Qualification：-
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Overview
The 74LS174FP-E is a quadruple D-type flip-flop manufactured by Renesas Electronics Corporation. It utilizes TTL circuitry to implement logic functions with positive-edge triggering. The device features direct clear inputs for each flip-flop, allowing immediate output reset independent of the clock signal. Information at the D inputs meeting setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a specific voltage level and is not directly related to the transition time of the positive-going pulse. When the clock input is high or low, the D input signal has no effect on the outputs.
Feature Summary
- Quadruple D-type flip-flop configuration
- Positive-edge-triggered operation
- Direct clear inputs for all stages
Applications
- General-purpose digital logic circuits
- Data storage and transfer applications
- Timing and control systems
Procurement Notes
Verify component authenticity through authorized channels due to potential availability from multiple distributors. Confirm RoHS compliance status as it may vary by production batch. Check for moisture sensitivity level (MSL) requirements prior to surface mount processing if applicable. Ensure proper handling procedures are followed during storage and assembly to maintain device integrity.
Selection Notes
Select this component when quadruple D-type flip-flops with direct clear functionality are required in TTL-compatible designs. Consider package type and pinout compatibility with existing PCB layouts. Evaluate operating temperature range and supply voltage specifications against system requirements. Verify that positive-edge triggering aligns with the system's clocking scheme.
Part Context
This part belongs to the HD74LS series of general-purpose logic ICs. The series has over 30 years of track record and high market penetration. Support for these products is limited to customers who have already adopted them. The family represents standard 5V drive bipolar logic components widely used in established industrial and consumer electronics applications.
Replacement Considerations
Compatible substitutes include SN54LS174, SN74LS174, and other quadruple D-type flip-flops with clear inputs from various manufacturers. Ensure logical equivalence regarding pinout, voltage levels, and triggering characteristics before substitution.
