74LVQ245SC

Overview

The onsemi 74LVQ245SC is a low-voltage octal bidirectional transceiver featuring three-state outputs. It operates within a supply voltage range of 2.0V to 3.6V and supports an operating temperature from -40°C to +85°C. The device provides 12mA current sinking capability at both A and B ports, with propagation delays ranging from 2.0ns to 15.0ns depending on voltage and load conditions. It utilizes a 20-lead SOIC package.

Feature Summary

• Implements patented EMI reduction circuitry for improved signal integrity
• Guarantees incident wave switching performance into 75Ω transmission lines
• Provides enhanced latch-up immunity and 4kV minimum ESD protection

Applications

• Low power/low noise 3.3V bus-oriented applications
• Asynchronous data communication between data buses
• Bus driver interfaces requiring high noise immunity

Procurement Notes

Verify the specific manufacturer origin as Fairchild Semiconductor products are now part of onsemi. Confirm the package type matches the M20B designation for the standard SOIC variant. Ensure compatibility with the 2.0V to 3.6V operating range required by your system design.

Selection Notes

Select this component for designs requiring low voltage operation with robust noise immunity. The LVQ series offers superior EMI characteristics compared to standard LV or LVC families. Verify that the 12mA drive strength meets the load requirements of the connected bus lines.

Part Context

This device belongs to the LVQ logic family, designed specifically for low voltage applications. It serves as an octal bus transceiver, facilitating bidirectional data flow controlled by separate direction and enable inputs. The technology combines low power consumption with high-speed performance suitable for modern digital systems.

Replacement Considerations

Check for equivalents such as the 74LVC245 or 74AVC245 if voltage levels differ. Ensure pinout compatibility when substituting with other octal transceivers. Verify that the replacement device supports the required 3.3V logic levels and package dimensions.