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Product Detailed Parameters
- Description：IC FLIP FLOP OCTAL D 3ST 20-SOIC
- Series：74LCX
- Mfr：STMicroelectronics
- Package：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：140 MHz
- Max Propagation Delay @ V, Max CL：-
- Trigger Type：Positive Edge
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：2V ~ 3.6V
- Current - Quiescent (Iq)：10 µA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SO
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Input Capacitance：6 pF
- Grade：-
- Qualification：-
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Overview
The STMicroelectronics 74LCX374MTR is an octal D-type flip-flop with tri-state outputs, designed for low-voltage digital logic applications. It features 5V tolerant inputs and outputs, allowing operation in mixed-voltage systems. The device operates within a supply voltage range of 2V to 3.6V. Key electrical specifications include a maximum clock frequency of 140 MHz at VCC = 3V and a propagation delay of 9.5ns @ 5V, 50pF. Output drive capability is specified as 24mA for both high and low states, with a static current of 4 µA. The component is housed in a 20-SOIC package.
Feature Summary
- Octal D-type flip-flop architecture with tri-state outputs
- 5V tolerant inputs and outputs for mixed-voltage compatibility
- High-speed performance with fMAX up to 150 MHz
- Power-down protection on inputs and outputs
Applications
- Low-voltage digital logic systems
- Mixed-voltage interface circuits
- Data storage and transfer registers
- High-speed data bus applications
Procurement Notes
Verify the specific suffix 'MTR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 5V tolerance specification aligns with the target system's I/O voltage levels to ensure signal integrity. Check for RoHS compliance status if environmental regulations apply to the final product assembly.
Selection Notes
Select this component when an octal register with tri-state control is needed in low-voltage environments. Ensure the design supports the 2V to 3.6V supply range. Consider the 140 MHz clock frequency limit for timing constraints. Verify that the 20-SOIC package dimensions fit the PCB layout requirements.
Part Context
This part belongs to the 74LCX series of CMOS logic devices, which are optimized for low-voltage operation. It serves as a standard octal D-type flip-flop solution, providing non-inverting output functionality. The device is widely used in portable electronics and communication equipment requiring efficient power consumption and high-speed data handling capabilities.
Replacement Considerations
Public confirmed substitute part numbers include MC74AC374DWG and MC74AC374DWR2G from onsemi. These alternatives offer similar functional characteristics but may differ in specific electrical parameters or packaging options.
