SN74HC240PW

Logic - Buffers, Drivers, Receivers, Transceivers

The SN74HC240PW is a high speed octal buffer/line driver with 3-state outputs. It is designed to provide the highest level of performance and reliability for digital applications, and is ideal for transitioning from the on semiconductor TTL logic family to the CMOS logic family. The SN74HC240PW can be used in a wide range of applications including data routing, memory address decoding, logic interfacing, input and output expansion and multiplexing. This integrated circuit can be used to transmit two independently controlled signals or one single 8-bit wide data bus.

The SN74HC240PW has an active low-level output control pin (OEA) which can be used to control the output state. When the OEA pin is at a low level, all eight OE outputs are in their high-impedance state. When the OEA pin is at a high level, the OE outputs will be active. This feature allows for simple interfacing between systems that require different logic and data formats.

The SN74HC240PW is made up of two parts; the buffer and the driver. The buffer is responsible for translating data from one logic format to another. The driver portion buffers and amplifies the signal, allowing for increased drive capability. When combined, the buffer and the driver create an output capable of driving up to 70mA at a low voltage. This allows for faster signal propagation and prevents accidental damage from static electricity.

The SN74HC240PW can also be used to interface multiple memory devices together. This application requires the combination of two functions; the level translation of multiplexed address/data buses and the active driving of the input and output lines. The buffer portion of the device is used to perform the level translation, while the driver portion is used to drive the buses. This configuration allows for multiple memory devices to be daisy-chained together in order to access more memory than is available on a single device.

The SN74HC240PW is a versatile integrated circuit that can be used in a variety of applications. Its wide range of features makes it an ideal choice for data routing, decode logic, interfacing and bus expansion. The combination of the buffer and the driver enables fast and reliable data transmission, and its high current output capabilities makes it suitable for driving multiple memory devices.