MC74AC541DTR2G

Overview

The MC74AC541DTR2G is an octal buffer and line driver from the onsemi AC logic family, housed in a 20-TSSOP surface-mount package. It features non-inverting outputs with three-state capability, allowing for high-impedance isolation when disabled. The device operates within a supply voltage range of 2 V to 6 V, supporting low-power applications with a static current of 8 uA and a maximum operating power supply current of 80 uA. It provides robust output drive capabilities with 24 mA source and sink currents. Propagation delays are specified at 8 ns at 3.3 V and 6 ns at 5 V. The component functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Octal configuration with non-inverting logic functionality
• Three-state outputs enable bus isolation and system flexibility
• Wide supply voltage operation supports diverse logic levels
• High drive strength suitable for memory and address drivers

Applications

• Memory address and data bus driving
• Clock signal distribution and buffering
• Microprocessor output port interfacing
• Bidirectional bus transceivers

Procurement Notes

Verify the specific suffix DTR2G confirms the TSSOP-20 package and reel packaging format. Confirm RoHS compliance status matches current environmental declarations. Ensure the operating temperature range meets the target application's thermal requirements. Cross-reference the datasheet revision date to validate parameter accuracy against latest manufacturing standards.

Selection Notes

Select this component when an octal, non-inverting buffer with three-state control is required for wide-voltage applications. The AC series offers a balance of speed and power consumption compared to standard TTL or older CMOS families. Consider the TSSOP-20 footprint for space-constrained PCB layouts. Verify that the 24 mA drive current suffices for the connected load capacitance and fan-out requirements.

Part Context

This part belongs to the MC74AC541 series, which includes variants like MC74ACT541 for TTL-compatible inputs. The AC series generally offers faster switching speeds than HC/HCT counterparts while maintaining low power dissipation. The DTR2G designation specifically indicates the tape-and-reel packaging variant for automated assembly processes.

Replacement Considerations

MC74ACT541DTR2G: Offers TTL-compatible inputs but requires a stricter 4.5 V to 5.5 V supply range. MC74AC541DWR2G: Same electrical specifications but utilizes a SOIC-20 package instead of TSSOP-20.