The 74LS126 IC designed as four independent 3-State Bus Buffers that belongs to 74XXYY IC series. This IC package operates at a wide range of working voltage, a wide range of working conditions. And directly interfaces with CMOS, NMOS, and TTL. The output of the IC always comes in TTL which makes it quite easy to function with other TTL devices and microcontrollers. The IC 74LS126 comes as smaller in size and offers much faster speed which makes it highly reliable in every kind of device.
These bus buffers include three-state outputs that, when enabled, combine the low impedance of a TTL output with the ability to operate at higher logic levels. As a result, heavy-load bus lines may be driven without extra pullup resistors. Under disabled conditions, both output transistors are switched off, resulting in a high-impedance state for the bus. As a result, output serves as neither a large burden nor a driver. When G is low, the 74LS126 IC outputs are deactivated.
A buffer is just a logic gate that sends its input to its output unmodified. The primary purpose of a buffer is to regenerate the input signal, which is commonly accomplished by utilising a strong high and a strong low. A buffer has one input and one output, with the output always being the same as the input. Buffers are also utilised to drive huge capacitive loads, which increases the propagation delay of circuits. Line drivers, on the other hand, are a specific form of buffer that may drive a transmission line or cable.
Applications
- High Sink Current Capability.
- Clamping Diodes at Input Simplify System Design.
- Open-Collector Driver for Indicator Lamps and Relays.
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