SN74LS373NE4

Latches Overview

The SN74LS373NE4 is an octal D-type transparent latch manufactured by Texas Instruments. It features eight latches with three-state outputs designed for driving highly capacitive or low-impedance loads. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of up to 18 ns at 5 V. It provides a low-level output current of 32 mA and a high-level output current of -2.6 mA. The component functions in a temperature range from 0°C to +70°C and is housed in a 20-pin PDIP package.

Latches Feature Summary

• Transparent data capture where outputs follow inputs while the enable signal is active
• Three-state bus-driving outputs capable of connecting directly to system buses without interface components
• Buffered control inputs that simplify system design and improve noise rejection

Latches Applications

• Implementing buffer registers in digital systems
• Configuring I/O ports for microcontroller interfaces
• Serving as bidirectional bus drivers
• Functioning as working registers in memory architectures

Latches Procurement Notes

Verify the specific ordering suffix 'E' indicates lead-free compliance and RoHS adherence per manufacturer specifications. Confirm the package designation matches the required 20-pin PDIP form factor for your PCB layout. Ensure the operating temperature range aligns with your environmental constraints, as this variant is rated for commercial temperatures. Cross-reference the datasheet revision date to ensure compatibility with your design standards.

Latches Selection Notes

Select this component when designing systems requiring parallel data storage with direct bus interfacing capabilities. The LS logic family offers a balance of speed and power consumption suitable for general-purpose digital applications. Consider the three-state output feature if multiple devices must share a common data bus. Verify that the input voltage levels are compatible with your source logic family to ensure reliable signal transmission.

Latches Part Context

This part belongs to the SN74LS373 series of octal D-type transparent latches. It shares functional similarities with other members like the SN74LS374, which utilizes edge-triggered flip-flops instead of transparent latches. The device is part of the broader standard logic IC portfolio used for data storage and transfer in embedded systems and computer architecture.

Latches Replacement Considerations

SN74LS373N is a direct pin-compatible alternative in the same PDIP package. SN74LS373DWR serves as a surface-mount equivalent in the SOIC package. SN74S373 offers faster switching characteristics but maintains the same logical function and pinout.