TC74ACT244FTEL

Overview

The TC74ACT244FTEL is an octal bus buffer featuring non-inverted, three-state outputs. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40 °C to +85 °C. The device provides a typical propagation delay of 5.0 ns at 5.0 V, with maximum delays reaching 9.0 ns across the full temperature range. Output drive capability includes a minimum current of 24 mA for both high and low states at 4.5 V, extending to 75 mA under specific testing conditions. Quiescent supply current is specified at a maximum of 1.35 mA.

Feature Summary

• Features two active-low output enables for flexible control of data flow direction.
• Incorporates protection circuits against static discharge and transient excess voltage on all inputs.
• Maintains balanced propagation delays between high-to-low and low-to-high transitions.

Applications

• 3-state memory address drivers
• Bus-oriented transmissions
• Clock buffering and distribution

Procurement Notes

Verify that the component matches the exact Toshiba Semiconductor and Storage part number TC74ACT244FTEL. Confirm the package type is SOP20/TSSOP-20 as indicated in official documentation. Ensure compliance with RoHS requirements by checking the manufacturer's latest environmental declarations. Validate that the supplier provides authentic parts traceable to the original equipment manufacturer to avoid counterfeit risks.

Selection Notes

Select this component when an octal, non-inverting buffer with three-state capability is required. It is suitable for applications needing high-speed operation comparable to Bipolar Schottky TTL while maintaining CMOS low power dissipation. Ensure the system design accommodates the 4.5 V to 5.5 V supply voltage range and the -40 °C to +85 °C operating temperature limits defined in the specifications.

Part Context

This device belongs to the TC74ACT series of advanced high-speed CMOS logic integrated circuits. It utilizes silicon gate and double-layer metal wiring C2MOS technology to achieve performance levels similar to equivalent Bipolar Schottky TTL devices. The TC74ACT244FTEL is functionally compatible with the 74F240/244 pinout, serving as a non-inverting variant within the octal bus buffer family.

Replacement Considerations

The TC74ACT240F is the inverting counterpart within the same series. For direct functional substitution in non-inverting applications, verify compatibility with other manufacturers' 74ACT244 equivalents such as MC74ACT244DTEL, ensuring electrical parameters match the design requirements.