TC74ACT245FTEL

Overview

The TC74ACT245FTEL is an octal bus transceiver manufactured by Toshiba Semiconductor and Storage. It features non-inverting logic with three-state outputs, designed for high-speed data transmission in bidirectional bus architectures. The device operates within a supply voltage range of 4.5V to 5.5V and supports output drive currents of 24mA for both high and low states. It is housed in a 20-pin TSSOP package and functions reliably across an operating temperature range of -40°C to 85°C.

Feature Summary

• Octal bidirectional bus transceiver architecture
• Three-state output capability for bus isolation
• Non-inverting signal transmission
• High drive current capacity

Applications

• Bidirectional data bus systems
• Memory interface circuits
• I/O expansion modules
• Digital communication interfaces

Procurement Notes

Verify the specific suffix 'TEL' indicates the tape-and-reel packaging configuration when ordering. Confirm that the required operating temperature range aligns with the specified -40°C to 85°C rating. Ensure the target system voltage remains within the 4.5V to 5.5V limits to maintain electrical characteristics. Cross-reference the datasheet for pinout compatibility with existing PCB layouts.

Selection Notes

Select this component for applications requiring robust bidirectional data transfer between microprocessors and peripheral devices. The ACT series offers speed comparable to LS-TTL but with CMOS power consumption. Consider the 24mA drive strength for driving multiple loads or longer traces. Verify that the TSSOP-20 package fits the available board space and assembly capabilities.

Part Context

This part belongs to the 74ACT family of logic integrated circuits, which are standard-compliant replacements for older TTL technologies. The TC74ACT245 variant specifically provides eight channels of data transfer. Toshiba Semiconductor and Storage produces this component to meet industrial and commercial reliability standards for digital logic applications.

Replacement Considerations

Compatible substitutes include other manufacturers' 74ACT245 variants in TSSOP-20 packages. Ensure any replacement maintains the same 4.5V-5.5V supply voltage and 3-state output functionality. Verify pin-to-pin compatibility before substitution.