STMicroelectronics M74HCT244B1R Octal Buffer/Line Driver

The M74HCT244B1R is a high-speed CMOS octal bus buffer and line driver designed to interface with 5V systems. Manufactured by STMicroelectronics, a leader in semiconductor solutions, this integrated circuit provides the necessary buffering capabilities for data address lines or control signals where high drive is required. The device features non-inverting 3-state outputs, making it an excellent choice for driving bus lines or buffer memory address registers.

Constructed to be compatible with LSTTL outputs, the M74HCT244B1R ensures a smooth transition for systems upgrading from older logic technologies. This device operates at a voltage range of 4.5V to 5.5V, which is typical for 5V systems, providing a robust and reliable performance even under varying voltage conditions. The M74HCT244B1R is characterized for operation from -55°C to 125°C, making it suitable for demanding industrial and automotive applications where extreme temperatures are common.

The M74HCT244B1R comes in a DIP20 (Dual In-line Package) form factor, making it easy to integrate into through-hole PCB designs. Its pin configuration is carefully designed to minimize signal crosstalk, a critical feature for maintaining signal integrity in complex electronic systems. The device's 3-state outputs can be put into a high impedance state, effectively disconnecting the output from the bus line, which is a crucial feature for preventing bus contention issues.

Key features of the M74HCT244B1R include:

• High-speed CMOS technology
• Octal non-inverting 3-state buffer/line driver
• Output drive capability of 15 LSTTL loads
• Low power consumption: Icc = 4µA (max) at TA = 25°C
• Compatible with bus-oriented systems
• ESD performance: HBM > 2KV; MM > 200V

Applications for the M74HCT244B1R are diverse and include memory drive, bus-oriented systems, and data transmission systems. Its robust design and compatibility with existing 5V systems make it an ideal choice for engineers looking to create reliable, high-performance electronic products.

STMicroelectronics provides full support for the M74HCT244B1R, including detailed datasheets, application notes, and technical resources to assist designers in integrating this device into their projects with confidence and ease.