74ACT245MTR

Buffers, Drivers, Receivers, Transceivers Overview

The STMicroelectronics 74ACT245MTR is an octal bus transceiver with 3-state outputs, fabricated using advanced sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 4.5V to 5.5V. The device features high-speed performance with a typical propagation delay of 5.4ns at VCC = 5V. It provides symmetrical output impedance with a minimum source/sink current of 24mA. The component supports 50Ω transmission line driving capability and includes protection circuits against static discharge, offering 2kV ESD immunity.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Advanced high-speed CMOS fabrication for two-way asynchronous communication between data buses
• Symmetrical output impedance ensuring balanced signal transmission characteristics
• Direct interface capability with TTL, NMOS, and CMOS output voltage levels
• Integrated protection circuits providing immunity against static discharge

Buffers, Drivers, Receivers, Transceivers Applications

• Two-way asynchronous communication between data buses
• Interfacing High Speed CMOS systems with TTL, NMOS, and CMOS outputs
• Driving 50Ω transmission lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type required, as the base part number covers DIP, SOP, and TSSOP variants. Confirm that the MTR suffix corresponds to the Tape and Reel packaging format intended for automated assembly processes. Ensure compatibility with the 4.5V to 5.5V operating voltage range for the target application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer between buses is required with high-speed performance. It is suitable for applications needing direct interfacing with TTL or NMOS logic families due to its compatible input/output voltage levels. The 3-state outputs allow effective isolation of buses when the enable input is deactivated.

Buffers, Drivers, Receivers, Transceivers Part Context

This component belongs to the 74ACT series of octal bus transceivers manufactured by STMicroelectronics. It utilizes C2MOS technology to achieve low power dissipation while maintaining high speed. The device is functionally compatible with the standard 74 series 245 pinout, facilitating drop-in replacements in existing designs requiring improved latch-up immunity.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for equivalent parts from other manufacturers such as Fairchild Semiconductor or ON Semiconductor that share the 74ACT245 designation. Verify that any substitute maintains the same 3-state output configuration and 4.5V to 5.5V operating voltage range.