74LVQ244SCX

Overview

The onsemi 74LVQ244SCX is an octal buffer and line driver featuring 3-state outputs, designed for memory address driving, clock distribution, and bus-oriented transmission. It operates within a supply voltage range of 2.0V to 3.6V and supports temperatures from -40°C to +85°C. The device provides low power consumption with a maximum quiescent supply current of 40µA at 3.6V. Propagation delays are guaranteed up to 14.0ns at 2.7V and 9.5ns at 3.3V. It offers high drive capability with output currents of ±12mA and includes EMI reduction circuitry.

Feature Summary

• Implements patented EMI reduction circuitry for improved signal integrity
• Provides 3-state outputs for effective bus-oriented transmitter and receiver applications
• Features improved latch-up immunity and 4kV minimum ESD protection
• Guarantees incident wave switching performance into 75Ω transmission lines

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitters or receivers

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm package type. The SCX designation indicates a SOIC JEDEC package variant. Confirm RoHS compliance status through official datasheets as specifications may vary by production batch. Ensure unused inputs are held HIGH or LOW during operation to prevent floating states.

Selection Notes

Select this component for low-power, low-noise 3.3V applications requiring octal buffering. Compare propagation delay specifications against system timing requirements at the target operating voltage. Evaluate the SOIC-20 package dimensions against PCB layout constraints. Consider the simultaneous switching noise levels when designing high-density circuits.

Part Context

This part belongs to the LVQ logic family, characterized by low voltage operation and enhanced performance features compared to standard LVX series devices. The 74LVQ244 specifically addresses density and noise reduction needs in digital systems. It is manufactured using silicon gate CMOS technology for robust performance across commercial temperature ranges.

Replacement Considerations

Check for direct pin-compatible alternatives within the same logic family. Verify that substitute components meet the required 3.3V operating conditions and 3-state output functionality. Ensure equivalent propagation delay and drive current specifications are maintained for the target application.