74AC373MTR

Latches Overview

The STMicroelectronics 74AC373MTR is an octal D-type latch with three-state non-inverting outputs, fabricated using sub-micron silicon gate and double-layer metal wiring C2MOS technology. It operates within a supply voltage range of 2V to 6V and supports an operating temperature from -55°C to 125°C. The device features high-speed performance with typical propagation delays of 5ns at 5V and low power dissipation with a maximum quiescent current of 4μA. It provides symmetrical output impedance with drive capabilities of 24mA minimum for both high and low states.

Latches Feature Summary

• Octal D-type latch architecture with three-state non-inverting outputs controlled by Latch Enable (LE) and Output Enable (OE) inputs.
• High noise immunity with input thresholds defined as a percentage of the supply voltage.
• Capable of driving 50Ω transmission lines with balanced propagation delays between LE-to-Q and D-to-Q paths.
• Integrated protection circuits against static discharge providing 2kV ESD immunity.

Latches Applications

• Bus-organized system applications requiring data latching and tri-state control
• Direct interfacing between High-Speed CMOS systems and TTL or NMOS components
• Memory address and data storage in digital logic circuits

Latches Procurement Notes

Verify the specific package variant required, as the base part number covers DIP, SOP, and TSSOP options. Confirm RoHS compliance status, as older manufacturing runs may not meet current environmental directives. Ensure the ordering suffix matches the desired packaging format, such as tube or tape and reel, to match assembly line requirements.

Latches Selection Notes

Select this component when an octal latch with three-state outputs is needed for bus applications. Consider the 2V to 6V operating range for compatibility with various logic families. Evaluate the 5ns propagation delay and 24mA drive strength against system timing and load requirements. Verify that the 2kV ESD rating meets the environmental robustness standards of the target application.

Latches Part Context

This component belongs to the 74AC series of high-speed CMOS logic devices manufactured by STMicroelectronics. It is functionally compatible with the standard 74LS373 pinout but offers improved speed and lower power consumption due to its advanced C2MOS fabrication process. The MTR suffix specifically denotes the Tape and Reel packaging option for surface-mount assembly.

Latches Replacement Considerations

Check for direct pin-compatible alternatives from other manufacturers that support the same 2V to 6V operating range and 24mA output drive. Verify that substitute parts maintain the same octal latch functionality and three-state output characteristics to ensure circuit compatibility without redesign.