SN74AUC16245DGGR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AUC16245DGGR is a 16-bit (dual-octal) noninverting bus transceiver from the Widebus family, designed for asynchronous communication between data buses. It operates at supply voltages from 0.8 V to 2.7 V, optimized for 1.8-V operation with 3.6-V I/O tolerance. The device features a maximum propagation delay of 2 ns at 1.8 V and supports ±8-mA output drive current. It includes Ioff circuitry for partial-power-down mode to prevent backflow currents. Packaged in a 48-pin TSSOP (DGG), it functions as two 8-bit or one 16-bit transceiver controlled by DIR and OE inputs.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 3.6-V I/O tolerance while operating at lower supply voltages down to 0.8 V.
• Enables partial-power-down applications through integrated Ioff circuitry that disables outputs during power-off states.
• Provides high-speed data transmission with a maximum propagation delay of 2 ns at 1.8 V supply voltage.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Memory and memory control applications
• High-density data acquisition and storage

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DGGR' corresponds to the TSSOP-48 package with tape and reel packaging containing 2000 units per reel. Confirm the operating temperature range is -40°C to +85°C. Ensure compatibility with the required supply voltage range of 0.8 V to 2.7 V for your target application design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring low-voltage operation around 1.8 V with high-speed data transfer capabilities. The dual-octal architecture allows flexible configuration as either two independent 8-bit channels or a single 16-bit bus interface. Consider the 3.6-V I/O tolerance if interfacing with higher voltage logic domains.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to Texas Instruments' Widebus family, which focuses on low-voltage, high-performance bus transceivers. The SN74AUC16245 series is specifically engineered for sub-1-V operability and low power consumption, making it suitable for modern portable and battery-powered electronic devices requiring efficient data routing.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Consult official Texas Instruments documentation for verified pin-compatible or functionally equivalent replacements within the AUC or AVC families. Cross-referencing with other manufacturers requires careful validation of electrical characteristics and pin assignments.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Ioff feature benefit system design?

The Ioff circuitry disables the outputs when the device is powered down, preventing damaging current backflow through the device into the power supply rails of other active components.

What is the maximum input voltage allowed on the I/O pins?

The input voltage range extends up to 3.6 V, allowing the device to interface with 3.6-V logic systems even when the main supply voltage (VCC) is lower, such as 1.8 V.