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Product Detailed Parameters
- Description：IC FF D-TYPE SNGL 8BIT 20TSSOP
- Series：74LCX
- Mfr：STMicroelectronics
- 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：150 MHz
- Max Propagation Delay @ V, Max CL：8.5ns @ 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：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-TSSOP
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Input Capacitance：6 pF
- Grade：-
- Qualification：-
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Overview
The 74LCX574TTR is an octal D-type flip-flop with tri-state non-inverted outputs, fabricated using sub-micron CMOS technology. It operates within a voltage range of 1.2V to 3.6V and features 5V tolerant inputs and outputs. The device offers high-speed performance with a maximum frequency of 150 MHz at 3V supply. It includes power-down protection on inputs and outputs to prevent excessive current draw during low-power states.
Feature Summary
- Octal D-type flip-flop architecture with tri-state outputs
- 5V tolerant I/O for mixed-voltage system compatibility
- Power-down protection on all input and output pins
Applications
- High-speed data buffering in portable electronics
- Clock distribution networks requiring low power consumption
- Memory interface circuits with mixed voltage levels
Procurement Notes
Verify the component authenticity by checking the manufacturer's marking code against official STMicroelectronics documentation. Ensure the package type matches the specified 20-TSSOP configuration. Confirm that the datasheet version aligns with the required electrical specifications for your design implementation.
Selection Notes
Select this component when designing systems requiring octal storage with tri-state control and 5V tolerance. It is suitable for applications needing low power consumption and high-speed operation under 1.2V to 3.6V supply conditions. Consider the 20-TSSOP package constraints for PCB layout and thermal management requirements.
Part Context
This part belongs to the 74LCX series of low-voltage CMOS logic devices. It is designed for battery-powered applications where low power consumption and high speed are critical. The series provides compatibility with standard logic families while operating at reduced voltage levels.
Replacement Considerations
The 74LCX574T is a non-reel variant of the same functional device. Verify pinout and electrical characteristics match before substitution. Ensure the packaging difference does not impact assembly processes or board space constraints.
