MC145481ENR2

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The MC145481ENR2 is a single-chip full-duplex asynchronous communication interface circuit designed to provide full-duplex asynchronous communication for applications. This device combines the functions of a data receiving circuit and a data sending circuit into a single integrated circuit. By utilizing buffered transmit data from the universal asynchronous receiver/transmitter (UART), the device can greatly reduce system component count and offer reliable performance in a small package.The MC145481ENR2 application field includes digital communications, data acquisition systems, measurement systems, industrial controllers, and many other embedded systems. The communication speed is highly flexible and is compatible with standard communication protocols such as RS232 and RS485.

The MC145481ENR2 working principle can be described in 4 steps. The first step is to convert asynchronous serial data into an addressable parallel data array. Next, the data is converted into its addressable parallel form in preparation for transmission. The third step is to transmit the data in its parallel form to the receiver at a desired baud rate. The fourth and final step is to receive the data and convert it back into its serial format. The MC145481ENR2 supports a wide range of data formats, including 7-bit ASCII, 8-bit byte, 8-bit byte with 1 stop bit, and 8-bit byte with 2 stop bits.The MC145481ENR2 is compatible with all modern UARTs, including the MC68681, MC68HC05, MC68HC08, and MC9S08 family of UARTs. It is also operable with the MC68HC11, MC68HC12, and MC9S12 UARTs. The device also includes an input port for external control signals.The device supports a variety of serial data formats and data rates from 0.0225 to 115.2 kbps. It also supports two- and four-wire data transmission modes, provides read and write access to RAM memory locations, and can be used in point-to-point and multi-point communication systems.

In addition to its versatile feature set, the MC145481ENR2 is also very compact, with a maximum device size of 5.1mm x 3.2mm. It also offers low current consumption, with a typical quiescent current of 10 mA at 3.3 V and 5 mA at 5 V. This makes the device an ideal choice for battery-powered applications.The device also features enhanced noise immunity and enhanced EMI protection, making it suitable for industrial environments. The device is manufactured using a 0.35 μm process technology, making it highly reliable for long-term operation in harsh environments.Overall, the MC145481ENR2 is an ideal choice for a wide range of communications applications. Its robust feature set, low power consumption, and small size make it perfect for both industrial and commercial use.

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