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Product Detailed Parameters
- Description：D FLIP-FLOP, LVC/LCX/Z SERIES, 2
- Series：74LCX
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Function：Set(Preset) and Reset
- Type：D-Type
- Output Type：Complementary
- Number of Elements：2
- Number of Bits per Element：1
- Clock Frequency：150 MHz
- Max Propagation Delay @ V, Max CL：7ns @ 3.3V, 50pF
- Trigger Type：Positive Edge
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：2V ~ 3.6V
- Current - Quiescent (Iq)：10 µA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：14-TSSOP
- Package / Case：14-TSSOP (0.173", 4.40mm Width)
- Input Capacitance：7 pF
- Grade：-
- Qualification：-
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Overview
The Fairchild Semiconductor 74LCX74MTC is a dual D-type positive edge-triggered flip-flop featuring asynchronous clear and set inputs with complementary outputs. It operates within a supply voltage range of 2V to 5.5V, ensuring compatibility with low-voltage systems. The device utilizes a 14-TSSOP surface-mount package and supports industrial operating temperatures from -40°C to +85°C. Designed for high-speed digital applications, it provides reliable data storage and transfer capabilities in compact form factors.
Feature Summary
- Dual D-type flip-flops with positive edge triggering
- Asynchronous clear and set inputs for immediate control
- Complementary Q and Q outputs for versatile logic interfacing
- 5V tolerant inputs compatible with mixed voltage systems
Applications
- Parallel-to-serial data conversion circuits
- Shift register configurations for display drivers
- Memory address latching in microcontroller interfaces
- Timing synchronization and pulse generation circuits
Procurement Notes
Verify the manufacturer part number 74LCX74MTC against official Fairchild or onsemi documentation to confirm authenticity. Ensure the component matches the specified 14-TSSOP package and voltage specifications. Check for any obsolescence notices or lifecycle status updates from the manufacturer before finalizing procurement decisions.
Selection Notes
Select this component when dual independent D-type flip-flops are required in a low-voltage environment. The 5V tolerant input feature allows integration with both 3.3V and 5V logic families without level shifting. Consider the TSSOP package size for PCB space constraints and verify temperature range requirements for industrial applications.
Part Context
This component belongs to the 74LCX series of low-voltage CMOS logic devices. It is manufactured by Fairchild Semiconductor, now part of onsemi. The LCX series is designed for high-speed operation with reduced power consumption compared to older logic families, making it suitable for modern portable and battery-powered electronic devices.
Replacement Considerations
The MC74LCX74DT is a confirmed substitute part number from the same manufacturer family. Verify pinout compatibility and electrical characteristics before substitution. Other equivalents may exist but require detailed datasheet comparison to ensure functional parity.
