TC74LCX540F(EL,K,F

Series:	TC74LCX
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Logic Type:	Buffer, Inverting
Number of Elements:	1
Number of Bits per Element:	8
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	24mA, 24mA
Voltage - Supply:	1.65 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.209", 5.30mm Width)
Supplier Device Package:	20-SOP

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The TC74LCX540F is a member of the Logic - Buffers, Drivers, Receivers, and Transceivers family. This logic device offers high-speed performance with low static and dynamic power consumption. It is a 3-state, octal non-inverting buffer/transceiver that provides a wide range of features to improve system performance and flexibility. It is designed for 1.8V and 3V operation, with a guaranteed max frequency of 266MHz and maximum input rise/fall times of 10ns/10ns. The use of a dual-input architecture imposes minimal loading on the inputs, allowing two high-speed CMOS sections to be connected directly together. The receiver section provides level-shifting to keep the output low when the inputs are high. The TC74LCX540F includes buffer/driver stages that allow the connection of multiple high-speed CMOS signals. Each output can be independently controlled, allowing wider system compatibility. Furthermore, privileged logic signals can be connected to the outputs in order to prevent any potential data corruption. The active-low master output enables system communication to be interrupted when external logic signals demand it. The transceiver section provides full level-shifting and direction-control circuitry to facilitate the connection of multiple CMOS signals. All inputs can be active-high or active-low, allowing for the connection of multiple fanout signals. The direction of each port is controlled via dual 2.5V to 3.3V Logic High or Low signals. The enabled/disabled pins can be used to override the state of the transceiver, regardless of the logic level at the direction or enable pins. The TC74LCX540F utilizes two separate 3.3V and 1.8V power-supply pins in order to provide an additional level of control. The 1.8V supplies are used for the logic low side and 2.5V supply is used for the logic high side. A separate output supply enables the device to operate in 1.8V to 3.3V mixed-voltage systems. This feature assures it of system flexibility and backward compatibility.The TC74LCX540F includes both static and dynamic mode switching. The static mode is used to reduce static power consumption and the dynamic mode is used to reduce dynamic power consumption. The static and dynamic modes are selected based on the length of the clock pulse. In static mode, all inputs and outputs are turned off when the clock is low and all inputs and outputs are turned on when the clock is high. In dynamic mode, all outputs are turned on when the clock is low and all inputs and outputs are turned off when the clock is high. This feature allows the logic device to reduce power consumption while it is not in use. The TC74LCX540F includes both single-ended and differential inputs and outputs. The inputs can be described as level-shift non-inverting and the outputs are static-controlled. This allows the logic device to connect directly to a variety of high-speed, low-power CMOS signals. In addition, the device supports I/O isolation to isolate the inputs from the outputs. This allows additional flexibility when interfacing with high-speed components. In sum, the TC74LCX540F is a versatile, high-speed logic device that is ideal for low-power, mixed-voltage systems. It offers low static and dynamic power consumption, a wide range of features for system flexibility, and support for both single-ended and differential I/O. Its features make it the perfect choice for high-speed, low-power logic applications.

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