Allicdata Part #: | 74LCX540FT |
Manufacturer Part#: |
74LCX540FT |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Toshiba Semiconductor and Storage |
Short Description: | IC BUFFER INVERT 3.6V 20TSSOP |
More Detail: | Buffer, Inverting 1 Element 8 Bit per Element 3-St... |
DataSheet: | 74LCX540FT Datasheet/PDF |
Quantity: | 1000 |
Series: | TC74LCX |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
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-TSSOP (0.173", 4.40mm Width) |
Supplier Device Package: | 20-TSSOP |
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The 74LCX540FT is a high-performance unbuffered non-inverting octal tri-state buffer gate. All output drivers feature active pull-up resistors and provide a low-impedance active-low output. Inputs feature hysteresis for improved noise immunity, and all bipolar transistor inputs are Schmitt-triggered. The 74LCX540FT is suited for both industrial and commercial applications.
Application Field
The 74LCX540FT octal buffer gate is used in many applications requiring an input to control multiple outputs for data bus transmission applications. The 74LCX540FT is often used in computer system buses, signal distribution buses, data buses in networking applications, signal switching, and expansion in peripheral devices. The 74LCX540FT is also used in antenna signal amplifiers and radio frequency (RF) amplifiers.
Working Principle
The working principle of the 74LCX540FT is relatively simple. When an input signal is applied, the control logic inside the device determines whether it’s a logic HIGH or LOW. Depending on the input signals, the 74LCX540FT will drive or block the output lines to either an active-low (ground) or high-impedance (open) state. The active-low state is the opposite of an open state, meaning that it will drive the output lines to ground or GND. The high-impedance state is the opposite of an active-low state, meaning that it will block the output lines and leave the output lines open.
The outputs are built using the open-collector method, which means that the output lines are connected to active-low (GND) when an input signal is applied. This method is used to control or block the output lines when an input signal is not applied. When several outputs are being pulled low, the maximum power dissipation of the device should be considered.
The 74LCX540FT offers an enable/disable feature, which allows the user to control the state of all outputs. The enable/disable feature is implemented through two enable inputs, EN_A and EN_B, which allows the user to enable or disable a group of four or eight outputs. When EN_A is HIGH and EN_B is LOW, the four outputs connected to EN_A are enabled and the remaining four outputs connected to EN_B are disabled. Conversely, when EN_A is LOW and EN_B is HIGH, the four outputs connected to EN_A are disabled and the remaining four outputs connected to EN_B are enabled.
The 74LCX540FT provides high data rates and improved noise immunity and is provided in an 8-lead small outline integrated circuit (SOIC) package.
Conclusion
The 74LCX540FT octal buffer gate is a high-performance, unbuffered non-inverting octal tri-state buffer gate. It is used in many applications that require an input to control multiple outputs for data bus transmission, signal switching, and expansion in peripheral devices. It has two enable inputs EN_A and EN_B to control the state of the outputs, high data rates and improved noise immunity, and is provided in an 8-lead small outline integrated circuit (SOIC) package. It provides an excellent solution for a wide range of buffering and data transmission needs.
The specific data is subject to PDF, and the above content is for reference
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