MC74AC540DWR2G

Description：IC BUFF INVERT 6V 20SOIC
Series：74AC
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e0a3d70e647f Category: Buffers, Drivers, Receivers, Transceivers Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC BUFF INVERT 6V 20SOIC
Series：74AC
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Logic Type：Buffer, Inverting
Number of Elements：1
Number of Bits per Element：8
Input Type：-
Output Type：3-State
Current - Output High, Low：24mA, 24mA
Voltage - Supply：2V ~ 6V
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Grade：-
Qualification：-

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MC74AC540DWR2G

Overview

The MC74AC540DWR2G is an octal buffer and line driver featuring three-state outputs, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V for the AC series. The device provides inverted outputs with inputs and outputs positioned on opposite sides of the package to facilitate microprocessor interface and printed circuit board layout. It supports output source and sink currents of 24 mA. Propagation delays are specified at 7.5 ns maximum at 3.3 V and 6.0 ns maximum at 5.0 V under typical conditions.

Feature Summary

Octal buffer/line driver with three-state outputs
Inverted logic configuration
Opposite-side input/output pinout architecture
Lead-free packaging

Applications

Memory address drivers
Clock drivers
Bus-oriented transmitter/receivers
Microprocessor output ports

Procurement Notes

Verify the specific ordering suffix 'R2G' corresponds to the tape and reel shipping format containing 1000 units per reel. Confirm that the component meets lead-free requirements as indicated by the 'G' designation in the part number. Ensure compatibility with SOIC-20W package dimensions before finalizing procurement specifications.

Selection Notes

Select this component when an octal buffer with inverted logic and three-state capability is required. The opposite-side pinout is advantageous for high-density PCB layouts interfacing with microprocessors. Choose the AC series for operation across a wide 2.0 V to 6.0 V supply range compared to the narrower ACT series voltage window.

Part Context

This device belongs to the MC74AC540 family of octal buffers. It shares functional similarities with the MC74AC240 and MC74AC244 but utilizes a flow-through architecture. The non-inverting counterpart in this family is the MC74AC541. Both variants support bus-oriented applications requiring high drive current and controlled output states.