SN74ALS259DRE4

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The 74ALS259DRE4 is one of the most popular logic-latches devices from Texas Instruments. It is an 8-bit multiplexer/demultiplexer consisting of four 4-bit latch circuits. The device is designed to access eight data lines and enable single or multiple byte transfers. It is an ideal solution for applications where multiple address lines may be needed to access multiple bytes of data stored in a single data location. The device features a glitch-free data transfer capability, allowing the device to transition between input and output states without requiring a reset/restart.The 74ALS259DRE4 is designed to support multiple data and address formats, including 8/16-bit and 4/6/8/10/12-bit address schemes. It also features a variety of flexibility in terms of pin-out and configuration. It includes an active-low chip enable (CE) input which allows for the device to function as a buffer or inverse the logic type. The device also includes an asynchronous active-low reset input (R) which can be used to reset the output state of all bits.The 74ALS259DRE4 is ideal for applications that require low power consumption and high speed operation. It requires a single +5V supply voltage, draws only 12 to 15 mA of current, and is capable of operating at frequencies up to 200 MHz. The device also features logic level and noise immunity complementary outputs.The 74ALS259DRE4 has two operating modes: a latch mode and a multiplexer mode. In the latch mode, all inputs are effectively clocked into a register, and the output is determined by the inputs at the data and address inputs. In the multiplexer mode, the inputs are multiplexed and demultiplexed to allow for the signal to access multiple storage locations.The 74ALS259DRE4 is a reliable, high-speed solution for a wide variety of logic-latches applications. It is an ideal choice for applications requiring multiple address lines and/or multiple data lines with high signal integrity. The device features a glitch-free data transfer capability, low power consumption and high speed operation, as well as support for multiple address and data formats. As such, it is an excellent choice for a wide variety of logic-latches applications.

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