74AHC541PW,118

Buffers, Drivers, Receivers, Transceivers Overview

The 74AHC541PW,118 is an octal buffer and line driver featuring three-state outputs, manufactured by Nexperia USA Inc. It operates within a supply voltage range of 2.0 V to 5.5 V and utilizes the TSSOP20 (SOT360-1) package with a body width of 4.4 mm. The device includes two active-low output enable inputs (OE0 and OE1) that force associated outputs into a high-impedance state when asserted HIGH. Inputs are overvoltage tolerant up to 5.5 V, facilitating use in mixed-voltage environments. It supports ambient temperatures from -40 °C to +125 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features balanced propagation delays and high noise immunity for reliable signal transmission.
• All inputs incorporate Schmitt-trigger action to tolerate slower input rise and fall times.
• Includes dedicated circuitry for partial power-down mode operation via I_OFF functionality.
• Provides robust latch-up performance exceeding 100 mA per JESD 78 Class II Level A.

Buffers, Drivers, Receivers, Transceivers Applications

• Translating signals between mixed voltage environments due to overvoltage tolerant inputs.
• Driving capacitive or resistive loads in bus-oriented systems.
• Clock distribution and buffering in digital logic circuits.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type, as the PW suffix denotes the TSSOP20 variant. Confirm the temperature grade aligns with system requirements, noting the specified range extends to +125 °C. Ensure design compliance with absolute maximum ratings, particularly regarding total power dissipation derating curves above 100 °C for this package. Cross-reference the latest datasheet revision to confirm static and dynamic characteristic updates.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select the 74AHC541PW,118 when an octal non-inverting buffer with three-state control is required for CMOS-level input compatibility. This component is suitable for designs needing wide supply voltage flexibility between 2.0 V and 5.5 V. Consider the TSSOP20 package dimensions if space constraints require a thin shrink small outline form factor. Evaluate the low power dissipation characteristics against system thermal budgets.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74AHC series of high-speed CMOS logic devices produced by Nexperia. It shares functional similarities with the 74AHCT541, which accepts TTL-level inputs, whereas the AHC variant requires CMOS-level inputs. The PW suffix specifically identifies the plastic thin shrink small outline package variant, distinguishing it from SO20 or DHVQFN20 options available within the same logical family.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitute part numbers include the 74AHCT541PW,118 for TTL-compatible applications and other package variants such as the 74AHC541D,118 for SO20 requirements. Verify pinout compatibility and electrical specifications before substitution.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the 74AHC541 handle partial power-down scenarios?

The device features I_OFF circuitry that disables the output, preventing damaging backflow current through the device when it is powered down while other parts of the system remain active.

What is the function of the OE0 and OE1 pins?

OE0 and OE1 are output enable inputs that are active LOW. When either input is HIGH, the associated outputs assume a high-impedance OFF-state, effectively disconnecting them from the bus.

Are the inputs compatible with voltages higher than the supply voltage?

Yes, the inputs are overvoltage tolerant up to 5.5 V, allowing the device to be used as a translator in mixed voltage environments even if the input signal exceeds the VCC level.