SN74LVTH373PWRE4

Overview

The SN74LVTH373PWRE4 is an octal transparent D-type latch manufactured by Texas Instruments, belonging to the LVTH logic series. It features a TSSOP-20 package and operates within a supply voltage range of 2.7 V to 3.6 V. The device exhibits a propagation delay of 2.6 ns at 3.3 V and supports low-level output currents of 32 mA and high-level output currents of -32 mA. It functions as a non-inverting circuit with eight input and output lines, designed for surface mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Transparent data latching functionality controlled by a latch enable signal
• Bus holding capability on data inputs to maintain states without external pull-up resistors
• High-speed operation comparable to 5V ABT technology while maintaining low CMOS power consumption

Applications

• Bus structure system applications requiring data storage
• Low voltage (3.3V) digital circuits
• Systems providing TTL interface compatibility in 5V environments

Procurement Notes

Verify the specific RE4 suffix against official Texas Instruments documentation to confirm compliance details and manufacturing specifications. Ensure the TSSOP-20 package dimensions align with PCB layout requirements. Confirm RoHS status through the manufacturer's current datasheet rather than relying solely on distributor summaries.

Selection Notes

Select this component when designing systems that require octal latching with bus hold features in a compact surface-mount package. The LVTH series offers a balance of speed and power efficiency suitable for 3.3V applications. Verify that the required output drive strength meets the load requirements of the connected bus lines.

Part Context

This part belongs to the SN74LVTH373 family of octal transparent D-type latches. It is distinct from the standard LVT series by including bus hold inputs. The RE4 suffix typically indicates specific environmental or packaging variations defined by the manufacturer, differentiating it from other tape-and-reel configurations like the PWR variant.

Replacement Considerations

SN74LVTH373PWRG4 is a documented equivalent variant within the same product line.