DM74AS245WMX

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The DM74AS245WMX is a high-speed logic buffer/driver with three state outputs that provide low-voltage transistor-transistor logic (LVTTL) signals from a fiveV supply. The device is capable of driving up to 24 individual data lines with stand-by in high-impedance state. DM74AS245WMX is useful in bi-directional bus exchange and is ideal for high-speed buffer applications such as address and data buffers in microprocessors, peripheral interface adapters, video interface, memory interfaces, etc.

The DM74AS245WMX belongs to the logic buffers, drivers, receivers, and transceivers category. It is a high-speed, bi-directional bus interface device that requires single 5V supply. It includes 8-bit wide differential input/output bus and 2 select inputs, S0, S1 to separate the data flow in one direction. It has four 8-bit registers, two each for input and output, and an inverter latch. The device contains two 8-bit latch registers and eight 3-state outputs that can drive an nominal 24 TTL loads.

The working principle of the DM74AS245WMX is based on the internal latch. When two select inputs S0 and S1 are in Logic-1 state, the register passes data from the inputs to the outputs. When S0 and S1 are in the Logic-0 state, the buffer latches the data from the inputs to the outputs and the data can be stored in the same device. The outputs of the device are three-state capable. The output pins are controlled by the OE pin. When the OE pin is in the Logic-1 state, the outputs are in a high-impedance state, and when the OE pin is in the Logic-0 state, the outputs are enabled. The DM74AS245WMX has an open-drain output configuration and can be used for multiple device interfacing.

The DM74AS245WMX is ideal for general purpose address and data buffering purposes. It can be used in multiplexers, video selectors, video controllers, memory, and peripheral interface applications. It is designed to drive Bus drivers and other low voltage TTL levels to 24 separately controlled outputs. It can also be used in microprocessors, address buses, data buses, and other control signals. The device is capable of providing error-free data transfers in different communication systems, such as LANs and I2C systems.

The DM74AS245WMX has a number of advantages over other logic devices, such as low and fast propagation of delays, low power consumption and high speed. The device can be used as a bi-directional driver for many applications with different logic levels. It is also capable of driving multiple lines with different speeds. The device requires a single 5V power supply and is available in multiple packages.

In summary, the DM74AS245WMX is a high-speed logic buffer/drive with three-state outputs that provides low-voltage transistor-transistor logic (LVTTL) signals from a single 5V power supply. It is capable of driving up to 24 data lines with stand-by in high-impedance state. The device is ideal for address and data buffering purposes and is suitable for multiplexers, video selector, microprocessors, memory, and peripheral interface applications. Offerring fast propagation delays, low power consumption, and high speed, it is an ideal choice for many bi-directional bus applications.

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