74AC16245 16-Bit Transceiver with 3-State Outputs

The 74AC16245 from Texas Instruments is a high-speed 16-bit transceiver designed to provide bidirectional communication between data buses. With its advanced CMOS technology, this device offers non-inverting 3-state outputs, which makes it an ideal choice for driving bus lines or buffer memory address registers. The 74AC16245 is part of Texas Instruments’ 74AC series, known for its robust performance and compatibility with a wide range of applications.

This transceiver features two separate 8-bit bus transceiver blocks, A and B, each with its own directional control (DIR) and output enable (OE) inputs. The DIR input determines the direction of data flow, allowing the device to operate as either a transmitter or a receiver. When OE is active, the device's outputs are in a high-impedance state, which is essential for preventing bus contention in multiplexed bus configurations.

With a wide operating voltage range of 2V to 6V, the 74AC16245 provides the flexibility needed to interface with both 5V and 3.3V logic levels, making it suitable for mixed-voltage systems. The device also features a balanced propagation delay and transition times, which ensures fast data transfer rates and reduces the risk of signal skewing, essential for maintaining data integrity in high-speed communication.

Key features of the 74AC16245 include:

• 16-bit bidirectional data flow
• Separate control logic for each 8-bit section
• 3-state outputs for connection to system buses
• Wide operating voltage range (2V to 6V)
• Low quiescent power consumption
• ±24mA output drive at 5V
• Inputs are Ioff supported to ensure no damaging current backflow when the device is powered down

Designed for use in a variety of electronic systems such as personal computers, servers, networking equipment, and industrial control systems, the 74AC16245 is available in a variety of packages, including the space-saving TSSOP (Thin Shrink Small Outline Package) and the robust SOIC (Small Outline Integrated Circuit) format. Its reliability and performance make it a go-to component for engineers looking to create flexible, high-performance digital systems.