74LVX273TTR

Overview

The STMicroelectronics 74LVX273TTR is a low voltage CMOS octal D-type flip-flop with clear, fabricated using sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 2V to 3.6V, featuring 5V tolerant inputs and power-down protection on input pins. The device provides symmetrical output impedance with minimum high and low level output currents of 4mA at VCC=3V. Typical maximum frequency reaches 150MHz at 3.3V, with balanced propagation delays and low noise characteristics.

Feature Summary

• Octal D-type flip-flop architecture with dedicated clear function
• 5V tolerant input capability for mixed-voltage system interfacing
• Power-down protection on input pins to prevent undefined states
• Symmetrical output impedance ensuring balanced signal drive

Applications

• Low power battery operated electronic devices
• Low noise 3.3V digital logic applications
• Data storage and transfer in microcontroller systems
• Parallel-to-serial or serial-to-parallel data conversion circuits

Procurement Notes

Verify component authenticity through authorized distribution channels due to the prevalence of counterfeit logic ICs. Confirm RoHS compliance status and specific tape-and-reel packaging specifications prior to procurement. Ensure storage conditions adhere to moisture sensitivity level requirements to maintain device reliability during soldering processes.

Selection Notes

Select this component when an octal D-type flip-flop with clear functionality is required in low voltage environments. The 5V tolerant inputs allow direct interfacing with higher voltage logic families without additional level shifting circuitry. Consider the 2V to 3.6V operating range suitability for battery-powered designs requiring low static current dissipation.

Part Context

This part belongs to the 74LVX series of low voltage CMOS logic integrated circuits manufactured by STMicroelectronics. The LVX family is designed for high-speed, low-power applications compatible with standard 74-series pinouts while operating at reduced supply voltages. The TTR suffix indicates the device is supplied in a tape-and-reel format suitable for automated surface-mount assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers include 74LVX273MTCX from onsemi and 74LVX273 from Toshiba Semiconductor. These alternatives offer similar octal D-type flip-flop functionality with clear features. Verify pin compatibility and electrical specifications before substitution.