The TC74HC244 is a high-speed silicon gate CMOS device. It is an octal buffer/line driver with non-inverting 3-state outputs. This device is well-suited for memory address drivers, clock drivers, and other applications where high-speed data transfer is essential.

Applications:

• Memory address drivers
• Clock drivers
• Line drivers
• Bus-oriented applications
• Microprocessor systems

Features:

• High-speed operation: tpd = 8 ns (typ.) at VCC = 5V
• High output drive current: outputs can drive up to 15 LSTTL loads
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• Wide operating voltage range: VCC = 2V to 6V
• Symmetrical output impedance: |IOH| = IOL = 6 mA (min) at VCC = 4.5V
• Pin and function compatible with 74LS244

Benefits:

• Improved system performance due to high-speed operation.
• Enhanced signal integrity through high output drive capability.
• Reduced power consumption, leading to longer battery life in portable applications.
• Increased design flexibility due to wide operating voltage range.
• Simplified system design and reduced component count due to pin compatibility with older logic families.
• The three-state outputs allow multiple devices to share a common bus, optimizing system resources.

Additional Details:

The TC74HC244 operates over a temperature range of -40°C to +85°C. It is available in DIP and SOIC packages. The 3-state outputs are controlled by two Output Enable (OE) inputs. When OE is high, the outputs are in a high-impedance state, effectively disconnecting the device from the bus. When OE is low, the outputs are enabled, allowing data to be transferred. The input protection circuitry ensures that the device is protected against electrostatic discharge (ESD) up to a certain level. The device is fabricated using silicon gate CMOS technology, providing a high level of noise immunity and low power consumption. Its propagation delay is very consistent over temperature and voltage, contributing to reliable system operation. The non-inverting configuration simplifies the interface between different logic levels and avoids the need for additional inverters.