SN74AC8541RKSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AC8541RKSR is an octal buffer or driver featuring Schmitt-trigger inputs and 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 1.5V to 6V. The device provides continuous output drive currents of ±24mA at 5V, with short burst capabilities up to ±75mA. It supports driving 50Ω transmission lines and achieves a maximum propagation delay of 6ns at 5V with a 50pF load. The component is housed in a VQFN-20 package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features Schmitt-trigger inputs for high noise immunity and tolerance to slow signal transitions
• Provides balanced CMOS 3-state outputs controlled by two active-low enable pins
• Capable of driving 50Ω transmission lines with fast edge rates

Buffers, Drivers, Receivers, Transceivers Applications

• Enable or disable digital signals
• Eliminate slow or noisy input signals
• Hold a signal during controller reset
• Debounce a switch

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix 'RKS' corresponds to the VQFN-20 package configuration. Confirm that the specific revision level matches the design requirements. Ensure the supply voltage remains within the 1.5V to 6V operating range. Check thermal dissipation limits if operating near maximum current ratings. Validate pinout compatibility with the target PCB footprint.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when wide voltage operation from 1.5V to 6V is required. Choose it for applications needing Schmitt-trigger inputs to handle noisy environments. Opt for this part when 3-state bus isolation is necessary. Consider it for driving transmission lines due to its high-speed performance. Use it where multiple independent buffers are needed in a compact surface-mount package.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AC logic family, designed for general-purpose digital buffering. It serves as an octal version of single-channel buffers, providing eight independent paths. The AC series offers faster switching speeds compared to standard 74HC devices. It is suitable for modern low-voltage digital systems requiring robust signal integrity.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ACT8541: Offers similar functionality but operates strictly at 4.5V to 5.5V.

Buffers, Drivers, Receivers, Transceivers FAQ

How do the OE1 and OE2 pins control the outputs?

Both OE1 and OE2 must be held low for the outputs to be active. If either pin is high, all outputs enter the high-impedance state.

What is the benefit of using Schmitt-trigger inputs?

Schmitt-trigger inputs provide hysteresis, making the device tolerant to slow or noisy input signals without causing excessive power consumption or undefined states.