74AHC245PW,112

Buffers, Drivers, Receivers, Transceivers Overview

The Nexperia 74AHC245PW,112 is an octal bus transceiver with 3-state outputs housed in a TSSOP20 package (SOT360-1). It operates within a supply voltage range of 2.0 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features overvoltage tolerant inputs up to 5.5 V and includes Schmitt-trigger action on all inputs for high noise immunity. Static characteristics specify a maximum input leakage current of 2.0 μA at -40 °C to +125 °C and a maximum supply current of 80 μA under the same conditions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides bidirectional data transmission control via dedicated Output Enable (OE) and Direction (DIR) pins.
• Incorporates overvoltage tolerant inputs allowing safe interfacing in mixed-voltage environments without external protection.
• Features Schmitt-trigger inputs to convert slowly changing signals into sharply defined output transitions.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address registers
• Bus-oriented communications
• Clock driving

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and temperature range. Confirm RoHS compliance status and REACH registration details directly with the supplier or official datasheet before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring 8-bit wide data buses with direction control. Ensure the logic family matches the system voltage; use the AHC variant for CMOS levels across 2.0 V to 5.5 V, or AHCT for TTL compatibility restricted to 4.5 V to 5.5 V operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Nexperia 74AHC/AHCT245 series of octal bus transceivers. It shares functional similarities with other 8-bit transceivers but is distinguished by its specific TSSOP20 packaging and the electrical characteristics defined by the AHC logic family standards.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74AHCT245PW,112 serves as a compatible alternative if TTL input levels are required instead of CMOS levels, provided the supply voltage remains between 4.5 V and 5.5 V.

Buffers, Drivers, Receivers, Transceivers FAQ

What is the function of the DIR pin?

The DIR pin controls the direction of data flow. When LOW, data flows from A to B; when HIGH, data flows from B to A.

How does the OE pin operate?

The Output Enable (OE) pin is active LOW. A HIGH signal on this pin places the outputs in a high-impedance OFF-state.