SN74AC245DGSRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AC245DGSRQ1 is an automotive-grade octal bus transceiver with three-state outputs, qualified under AEC-Q100 standards. It operates within a supply voltage range of 1.5V to 6V and supports a temperature range from -40°C to +125°C. The device features balanced CMOS outputs capable of continuous ±24mA drive at 5V, with short-burst support up to ±75mA. Inputs accept voltages up to 6V, ensuring compatibility with various logic levels. Propagation delays vary by voltage, ranging from approximately 3.5ns to 33.3ns.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• AEC-Q100 qualified for automotive applications with specified temperature grades and ESD classifications.
• Balanced CMOS three-state outputs providing high-impedance states for effective bus isolation.
• Wide operating voltage range supporting 1.5V to 6V power supplies.
• Wettable flank package options available to facilitate automatic optical inspection.

Buffers, Drivers, Receivers, Transceivers Applications

• Enabling or disabling digital signals in automotive systems
• Eliminating slow or noisy input signals
• Holding signals during controller reset sequences
• Switch debouncing applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package suffix (DGS, PW, or RKS) matches the required footprint, as the base part number covers multiple form factors. Confirm that the wettable flank feature is present if automated optical inspection is required. Ensure the design accounts for the thermal resistance values associated with the chosen package type to maintain junction temperatures within absolute maximum ratings.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when driving 8-bit bidirectional buses in automotive environments requiring wide voltage tolerance. Consider the propagation delay specifications relative to system clock speeds. Evaluate the output current capabilities against the load requirements, noting the distinction between continuous and burst drive limits. Verify input voltage compatibility if interfacing with 6V tolerant lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AC245-Q1 family of automotive octal bus transceivers. It shares functional similarities with other AC-series logic but is specifically tailored for automotive reliability standards. The Q1 suffix denotes qualification for automotive use, distinguishing it from standard commercial variants.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other AEC-Q100 qualified octal bus transceivers from Texas Instruments such as the SN74ACT245WRKSRQ1 or SN74AHC245QWRKSRQ1, provided voltage ranges and pinouts are compatible.