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MC74AC540DWG
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Product Detailed Parameters
- Description：IC BUFF INVERT 6V 20SOIC
- Series：74AC
- Mfr：onsemi
- Package：Tube
- 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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Overview
The MC74AC540DWG is an octal buffer and line driver manufactured by onsemi, featuring three-state outputs. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an operating temperature from -40°C to +85°C. The device provides 24 mA source and sink current capability with a maximum quiescent supply current of 80 µA at 5.5 V. Propagation delay is specified as 7.5 ns at 3.3 V and 6.0 ns at 5.0 V. It utilizes a flow-through architecture in a SOIC-20W package.
Feature Summary
- Flow-through architecture with inputs and outputs located on opposite sides of the package for easier microprocessor interface.
- Three-state outputs allowing isolation from the bus when not enabled.
- Inverted output logic configuration.
Applications
- Memory address drivers
- Clock drivers
- Bus-oriented transmitter/receivers
Procurement Notes
Verify the specific ordering suffix 'DWG' corresponds to the SOIC-20 Wide package and lead-free status. Confirm that the procurement channel provides the original manufacturer datasheet (MC74AC540/D) to validate electrical parameters against the official specifications provided in this document.
Selection Notes
Select this component when an inverted octal buffer with high drive capability is required. The flow-through pinout is advantageous for PCB layout density compared to standard parallel I/O devices. Ensure the application voltage falls within the 2.0 V to 6.0 V range and that the 24 mA output current meets load requirements.
Part Context
This device belongs to the MC74AC540/541 series of octal buffers and line drivers. It is functionally similar to the MC74AC240 and MC74AC244 but distinguishes itself through its specific input-output pin arrangement designed to facilitate direct connection to microprocessor ports.
Replacement Considerations
The MC74AC541DWG serves as a non-inverting alternative within the same family. Other compatible variants include the MC74ACT540DWG for TTL-compatible inputs and the MC74AC540DWR2G for tape-and-reel packaging options.
