STMicroelectronics M74HCT245TTR Bus Transceiver

The M74HCT245TTR from STMicroelectronics is a high-speed Si-gate CMOS device that is designed to interface between 5V and 3.3V logic levels. It belongs to the HCT family, which means it is compatible with HCMOS logic levels and has the capability to drive TTL logic. This particular product is a bus transceiver that consists of eight non-inverting bidirectional buffers and is designed to be used in two-way asynchronous communication between data buses.

Key Features

• Logic Level Translation: The M74HCT245TTR is specifically designed for translating logic levels, allowing it to interface between 5V and 3.3V systems seamlessly.
• High-Speed Performance: With its CMOS technology, it offers high-speed operation while maintaining low power consumption.
• Bi-Directional Data Flow: This transceiver supports bi-directional data flow, with direction controlled by the DIR input, making it versatile for data transfer operations.
• Output Enable (OE) Feature: The OE input, when held high, disables the outputs by placing them in a high impedance state, thus allowing for bus line sharing.
• Low Power Consumption: The device is designed for optimized power usage, which is critical for battery-powered and energy-efficient applications.
• Wide Operating Temperature Range: It operates over a wide temperature range, making it suitable for industrial applications.

Applications

The M74HCT245TTR is ideal for applications that require logic level shifting or bus interface communication. It is commonly used in:

• Microprocessor or microcontroller based systems
• Data communication and telecommunication systems
• Computer peripheral interfacing
• Instrumentation and control systems
• Portable devices and consumer electronics

Package and Quality

This device is offered in a TSSOP (Thin Shrink Small Outline Package) with 20 leads, under the part number M74HCT245TTR, ensuring a compact footprint on PCBs. STMicroelectronics is committed to high-quality standards, and this product is no exception, meeting stringent quality and reliability criteria.