STMicroelectronics M74HC244RM13TR: A Robust Octal Buffer/Line Driver with 3-State Outputs

The M74HC244RM13TR is a high-speed CMOS octal bus buffer and line driver designed to interface with 8-bit data buses in bidirectional communication. Manufactured by STMicroelectronics, this integrated circuit is engineered to provide a high level of performance in a wide range of applications. It features eight non-inverting buffers with 3-state outputs, making it an ideal solution for driving bus lines or buffer memory address registers.

Constructed with silicon gate CMOS technology, the M74HC244RM13TR offers a robust combination of high output drive capability and low static power consumption. The device operates over a broad voltage range of 2V to 6V, making it compatible with TTL levels while ensuring minimal power dissipation when in the high impedance state.

The octal buffer/line driver comes in a compact TSSOP-20 package, optimized for reduced space and weight in sophisticated electronic systems. Its pin configuration is carefully designed to simplify the layout of printed circuit boards, ensuring a straightforward integration into a variety of digital systems.

Key Features:

• High-speed operation: t<sub>PD = 8 ns (typ) at V<sub>CC = 5V
• Low power dissipation: I<sub>CC = 4 µA (max) at T<sub>A = 25°C
• High noise immunity: V<sub>NIH and V<sub>NIL = 28% V<sub>CC (min)
• Power down protection on inputs
• 3-State outputs for bus interfacing
• Wide operating voltage range: V<sub>CC (operational) = 2V to 6V
• Pin and function compatible with 74 series

The device's bus-hold circuitry ensures that floating inputs will not result in erratic system behavior, while the 3-state outputs can be put into a high impedance state, effectively disconnecting the buffer from the bus. This feature is particularly useful in multiplexed bus systems where multiple drivers share the same bus lines.

Whether it's for use in high-speed data paths, address buffers, or as a general-purpose logic interface, the M74HC244RM13TR from STMicroelectronics is a reliable and efficient choice for designers seeking to enhance the performance and stability of their digital systems.