SN74ABTH245N

The SN74ABTH245N is a non-inverting octal transceiver device, with three-state outputs, designed for asynchronous two-way data transmission between data buses. It is typically used in high-speed bus transactions in either 8-bit or 16-bit words. The device can be used as two sets of 4-bit buffers, and can be enabled or disabled as a unit, allowing for either complementary to the output or disabled output.

The device is designed for use both in memory decoders and in data communications applications. The device is available in both 20-pin and 24-pin packages and also includes two Enable pins, which can be used to enable and disable a particular half of the device. The device is also available in a buffered version, which is designed for higher speed operation and is recommended for use in applications where the outputs are switching at a high frequency. The device includes a built-in output buffer, which reduces the effect of capacitive loading and provides higher data transfer rates.

Working Principle

The SN74ABTH245N operates in an open-drain mode, and can be used to transfer or receive data from one bus to another. The device can operate in either an 8-bit or 16-bit mode, and is designed for both sending and receiving data. The device has two Enable pins, which can be used to enable or disable the device as a whole, or can be used to enable or disable a particular half of the device.

Data is transferred via a parallel interface, with the data being held on the device’s eight data lines. Data is held in the form of an 8-bit wide bus, or in a 16-bit wide bus, depending on the configuration of the device. When the device is enabled, its outputs go high, and data is transferred in a manner similar to that of a memory read operation. When the device is not enabled, its outputs go low, and data is transferred in a similar manner to that of a memory write operation.

The device also includes two Enable pins, which can be used to enable or disable the device as a whole, or can be used to enable or disable a particular half of the device. The device has two data lines, one for the 8-bit word, and one for the 16-bit word, and can be configured to operate in either an 8-bit or 16-bit mode.

Application Field

The SN74ABTH245N is typically used for transferring data between microcontroller buses, bidirectional communications between address buses, and for multiplexing data in both 8-bit and 16-bit configurations. The device is also useful for data encoding or decoding applications. The device is available in both 20-pin and 24-pin packages, allowing it to be used in a variety of applications, and is often used in high-speed bus transactions in either 8-bit or 16-bit words.

The device is also available in a buffered version, which is designed for higher speed operation and is recommended for use in applications where the outputs are switching at a high frequency. The device includes a built-in output buffer, which reduces the effect of capacitive loading and provides higher data transfer rates.

The device is suitable for use in high-speed memory systems and streaming applications, and is also useful for data encoding and decoding applications. The device is also suitable for use in communications systems, where high data rates and accurate data transmission are required.

In conclusion, the SN74ABTH245N is a versatile device designed for asynchronous two-way data transmission. It can be used in a variety of applications and is suitable for use in high-speed memory systems and streaming applications, where data transmission and accuracy is paramount. The device is also available in buffered and unbuffered versions, allowing it to be used in specific applications where higher data speeds and lower capacitive loading are desired.