STMicroelectronics M74HC245RM13TR Octal Bus Transceiver

The M74HC245RM13TR is a high-speed CMOS octal bus transceiver manufactured by STMicroelectronics. This integrated circuit is designed to provide bidirectional interface communication between data buses, with the capability to drive heavily loaded buses with up to 15 LSTTL loads. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction control (DIR) input.

The M74HC245RM13TR operates at a voltage range of 2V to 6V, making it compatible with TTL levels while offering the benefits of high-speed CMOS technology. This includes low quiescent current and reduced power consumption, which is particularly important for battery-powered and energy-saving applications. The chip's inputs are also designed with hysteresis, which increases its noise immunity and allows for more stable performance in electrically noisy environments.

Key features of the M74HC245RM13TR include:

• Eight bidirectional data lines
• 3-state outputs for bus-oriented applications
• Output current: 6 mA
• Wide operating voltage range: 2V-6V
• Low quiescent current: 80 µA maximum (at 25°C)
• Hysteresis at all inputs to improve noise immunity
• Complies with JEDEC standard no. 7A
• ESD performance:
  • HBM: 2 kV
  • MM: 200 V
• Offered in TSSOP and SO packages

The device is provided in a TSSOP package, which is designed for space-saving on printed circuit boards, making it ideal for compact electronic systems. The M74HC245RM13TR is suitable for a wide range of applications, including industrial control systems, communication devices, data processing, and any other system that requires a reliable and efficient means of transferring data between two buses.

With its robust design and advanced technical specifications, the STMicroelectronics M74HC245RM13TR octal bus transceiver stands out as a versatile component for designers looking to enhance the performance and reliability of their digital systems.