74VHC574TTR

Overview

The STMicroelectronics 74VHC574TTR is an octal D-type flip-flop featuring three-state non-inverting outputs. Fabricated using advanced sub-micron silicon gate C2MOS technology, it supports a supply voltage range of 2V to 5.5V. The device offers high-speed performance with a typical maximum frequency of 180 MHz at 5V and low power dissipation with a maximum static current of 4 µA. It provides symmetrical output drive capabilities of 8 mA for both high and low states. Packaged in TSSOP-20, it ensures balanced propagation delays and improved latch-up immunity.

Feature Summary

• Advanced high-speed CMOS construction utilizing sub-micron silicon gate and double-layer metal wiring C2MOS technology
• Octal configuration with three-state non-inverting outputs suitable for bus-oriented applications
• High noise immunity with input protection against power-down conditions
• Symmetrical output impedance ensuring balanced propagation delays

Applications

• Bus-oriented memory and data register implementations
• High-speed digital signal processing systems
• General-purpose storage elements in microcontroller-based designs

Procurement Notes

Verify the specific suffix 'TR' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the operating temperature range and voltage specifications align with the target system environment. Ensure compliance with RoHS3 standards if environmental regulations apply to the final product deployment.

Selection Notes

Select this component when high-speed operation up to 180 MHz is required alongside low power consumption. It is suitable for designs needing eight bits of storage with tri-state control. Consider the TSSOP-20 package for surface-mount applications requiring compact board space. Verify compatibility with existing logic families if interfacing with other components.

Part Context

This part belongs to the 74VHC series of high-speed CMOS logic devices from STMicroelectronics. It is functionally compatible with standard 74-series logic pinouts while offering superior speed and lower power characteristics. The 74VHC574 variant specifically provides octal D-type flip-flop functionality within this advanced technology family.

Replacement Considerations

Direct substitutes include MC74VHC574DWR2G from onsemi and SN74VHC574DR from Texas Instruments. These alternatives maintain functional compatibility but may differ in specific electrical parameters or packaging options. Verify pinout and electrical characteristics before substitution.