SN74ACT7541QDGSRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ACT7541QDGSRQ1 is an automotive-grade octal buffer with open-drain outputs, qualified under AEC-Q100 standards. It operates within a supply voltage range of 4.5V to 5.5V and supports continuous output drive currents of 24mA at 5V, with short burst capabilities up to 75mA. The device features TTL-compatible inputs and delivers fast operation with a maximum propagation delay of 9.6ns at 5V with a 50pF load. It is housed in a 20-pin VSSOP (DGS) package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features eight independent buffers with open-drain CMOS outputs that can be simultaneously forced into a high-impedance state via active-low enable inputs.
• Includes wettable flank technology on the QFN package variant to improve side soldering wetting and facilitate automatic optical inspection.
• Incorporates input and output clamping diode structures to protect against overvoltage conditions beyond absolute maximum ratings.

Buffers, Drivers, Receivers, Transceivers Applications

• Driving indicator LEDs
• Level-shifting using open-drain outputs
• Controlling relays

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the SN74ACT7541-Q1 family includes VQFN, TSSOP, and VSSOP options. Confirm the presence of the 'Q1' designation ensures AEC-Q100 qualification for automotive temperature grades. Check the latest Package Information Addendum for current manufacturing status and lead finish specifications before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring eight buffered channels with open-drain logic functionality in an automotive environment. Ensure the system supply voltage remains strictly between 4.5V and 5.5V to maintain specified electrical characteristics. Consider the thermal resistance metrics if operating near the upper temperature limits or driving significant capacitive loads.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ACT7541-Q1 family of automotive octal buffers. While other variants exist in different packages such as VQFN and TSSOP, the DGS suffix specifically denotes the VSSOP-20 package configuration. All family members share identical electrical performance and functional descriptions despite physical packaging differences.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ACT7541QWRKSRQ1

Buffers, Drivers, Receivers, Transceivers FAQ

How do the OE1 and OE2 pins control the output state?

Both OE1 and OE2 are active-low inputs. The outputs are enabled only when both pins are low; otherwise, all channels are forced into a high-impedance state.

What is the recommended handling for unused inputs?

Unused inputs must not be left floating. They should be terminated to either VCC or GND to prevent oscillations and excessive power consumption.