TC74VCX541FTEL

Overview

The TC74VCX541FTEL is a low-voltage octal bus buffer manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.2 V to 3.6 V, supporting 1.5 V, 1.8 V, 2.5 V, and 3.3 V systems. The device features non-inverting 3-state outputs controlled by two active-low output enables (OE1 and OE2). Inputs and outputs are tolerant up to 3.6 V and include power-down protection. Propagation delay ranges from 3.5 ns at 3.0–3.6 V to 42.0 ns at 1.2 V. Output drive currents vary from ±2 mA at 1.4 V to ±24 mA at 3.0 V. It is housed in a TSSOP20 package.

Feature Summary

• Low-voltage operation with wide supply voltage range
• High-speed performance maintaining CMOS low power dissipation
• 3.6 V tolerant inputs and outputs with power-down protection
• Dual active-low output enables for 3-state control

Applications

• 3-state memory address drivers
• Clock distribution buffers
• Bus-oriented architectures

Procurement Notes

Verify the specific ordering suffix 'TEL' corresponds to the tape and reel packaging configuration required for automated assembly. Confirm that the component date code aligns with the April 2020 manufacturing threshold if the extended operating temperature range of -40°C to 125°C is strictly required for the design. Ensure compatibility with the target PCB footprint for the TSSOP20 package.

Selection Notes

Select this component when interfacing between different voltage domains requiring 3.6 V tolerance on both sides. It is suitable for designs needing high drive capability at low voltages. Consider the propagation delay specifications relative to the system clock speed and supply voltage. Verify that the input capacitance and leakage current characteristics meet the signal integrity requirements of the connected buses.

Part Context

This part belongs to the TC74VCX series of CMOS digital integrated circuits. It functions as an octal bus buffer, providing isolation and driving capability for eight-bit data paths. The device is designed to replace older logic families while offering improved speed and lower power consumption in modern low-voltage applications.

Replacement Considerations

Check for pin-compatible alternatives such as the 74VHC541 series if higher voltage tolerance or different packaging is needed. Verify electrical parameter equivalence, particularly propagation delay and output current capabilities, before substituting.