M74HCT373B1R

Latches Overview

The M74HCT373B1R is an octal transparent latch manufactured by STMicroelectronics, belonging to the 74HCT logic series. It features three-state outputs and operates within a supply voltage range of 4.5V to 5.5V. The device utilizes a 20-pin DIP package for through-hole mounting. Key electrical characteristics include a maximum propagation delay of 38ns at 4.5V with 150pF load, output drive currents of 6mA, and a static current of 4µA. It supports a clock frequency up to 50MHz and functions across a temperature range of -55°C to 125°C.

Latches Feature Summary

• Provides eight-bit data latching capability with transparent operation mode controlled by an enable input.
• Features three-state outputs allowing direct bus connection without external buffer drivers.
• Ensures high noise immunity and low power consumption typical of CMOS technology.

Latches Applications

• Data storage in microprocessor-based systems
• Driving bus lines in digital circuits
• Parallel-to-serial conversion interfaces

Latches Procurement Notes

Verify component authenticity against official STMicroelectronics datasheets. Confirm package type matches project requirements. Check RoHS compliance status. Ensure operating conditions align with specified voltage and temperature limits. Validate pinout compatibility before integration.

Latches Selection Notes

Select this component when eight-bit latching with three-state outputs is required. Suitable for applications needing bus isolation. Verify supply voltage compatibility with system logic levels. Consider package constraints for PCB layout. Evaluate thermal performance for high-temperature environments.

Latches Part Context

Part of the 74HCT family offering CMOS speed with TTL-compatible inputs. Designed for general-purpose digital logic applications. Provides reliable data retention and fast switching speeds. Compatible with standard 5V logic systems. Widely used in industrial and consumer electronics.

Latches Replacement Considerations

• CD74HCT373E Texas Instruments
• SN74HCT373N Texas Instruments

Latches FAQ

What is the function of the enable input?

The enable input controls the transparency of the latch. When active, data passes from inputs to outputs; when inactive, the output state is held.

How does the three-state output benefit circuit design?

It allows multiple devices to share a common bus without interference by placing outputs in a high-impedance state when not selected.