74LVQ125TTR

Overview

The STMicroelectronics 74LVQ125TTR is a low-voltage CMOS quad bus buffer featuring three-state outputs, housed in a TSSOP-14 package. It operates within a supply voltage range of 2V to 3.6V and supports an operating temperature from -55°C to +125°C. The device provides symmetrical output impedance with minimum drive currents of 12mA at 3.0V. Propagation delay is typically 5ns at 3.3V, with balanced tPLH and tPHL characteristics. Quiescent supply current is maximized at 4µA at 25°C.

Feature Summary

• Features low power dissipation and low noise operation suitable for 3.3V applications
• Provides high-speed performance with typical propagation delays of 5ns
• Includes protection circuits against static discharge providing 2KV ESD immunity
• Capable of driving 75Ω transmission lines with guaranteed PCI bus levels

Applications

• Low power and low noise 3.3V system designs
• PCI bus interface applications requiring specific drive levels
• Transmission line driving for signal integrity maintenance
• General purpose quad bus buffering in industrial environments

Procurement Notes

Verify the component status as the datasheet indicates it was released in July 2004. Confirm that the TSSOP-14 tape and reel packaging matches the 'TTR' suffix requirements for your assembly process. Ensure compatibility with the specified 2V to 3.6V operating voltage range for your target application circuit design.

Selection Notes

Select this component when a quad buffer with three-state control is required for 3.3V logic systems. It offers improved latch-up immunity compared to standard series. Consider its 75Ω transmission line driving capability if signal reflection management is necessary. Verify that the -55°C to +125°C temperature range meets your environmental specifications.

Part Context

This part belongs to the 74LVQ125 family of low-voltage quad bus buffers manufactured by STMicroelectronics. It utilizes sub-micron silicon gate and double-layer metal wiring C2MOS technology. The device is pin and function compatible with the standard 74 series 125, facilitating direct upgrades or replacements in existing designs requiring lower voltage operation.

Replacement Considerations

The datasheet confirms pin and function compatibility with the 74 series 125. Designers may evaluate other manufacturers' equivalents that adhere to the same logical function and pinout configuration while meeting the 2V to 3.6V supply voltage constraints.