The SN74ACT16244 from Texas Instruments is an advanced high-speed CMOS 16-bit buffer and line driver, designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.

• VCC Operation: Low-voltage (3.3-V)
• TTL Interface: Capable of providing a TTL interface to a 5-V system environment
• Organization: Four 4-bit buffers/drivers with separate output-enable (OE) inputs
• Operating Temperature: -40°C to 85°C
• Latch-Up Performance: Exceeding 250 mA per JESD 17
• Ioff Circuitry: Equipped with Ioff circuitry to disable the outputs
• Packages: TSSOP, SSOP, and TVSOP
• Maximum tpd: 6.5 ns @ 3.3 V
• Power Consumption: Low power consumption
• Data Inputs: Bus hold on data inputs that eliminates the need for external pullup/pulldown resistors