74ALVCH16373T

Overview

The Fairchild Semiconductor 74ALVCH16373T is a 16-bit transparent D-type latch featuring three-state outputs, designed for bus-oriented applications within the ALVCH logic family. It operates with a supply voltage range of 1.65 V to 3.6 V and utilizes a TSSOP-48 surface-mount package. The device provides non-inverting data paths with low power consumption characteristics. Key electrical specifications include a propagation delay of 4.3 ns at 2.7 V and 3.6 ns at 3.3 V, alongside a maximum static current of 40 uA. It supports high-level output currents up to -24 mA and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides sixteen non-inverting latches with three-state outputs suitable for bus-oriented applications
• Supports mixed-mode signal operations allowing interfacing between 3.3 V and 5 V devices
• Features bus hold on data inputs to eliminate the need for external pull-up or pull-down resistors

Applications

• Bus-oriented data storage in mixed 3.3 V and 5 V systems
• High-performance clocked memory modules
• Register banks for portable and battery-powered equipment

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure proper handling procedures are followed given the surface-mount packaging type. Review official datasheets for specific ordering suffixes that may affect pinout or electrical characteristics. Validate supply voltage requirements against target application parameters.

Selection Notes

Select this component when designing systems requiring 16-bit data latching with tri-state control capabilities. Consider the ALVCH series for applications demanding low voltage operation combined with 5 V tolerance. Evaluate the TSSOP-48 package dimensions against available PCB real estate. Compare propagation delays against system timing requirements to ensure signal integrity. Assess power consumption limits relative to thermal management capabilities.

Part Context

This component belongs to the ALVCH logic family, which combines advanced CMOS technology with 5 V tolerant I/O structures. The 74ALVCH16373T serves as a 16-bit variant within this series, offering higher density compared to octal latch counterparts. It is engineered for high-speed digital applications requiring reliable data retention and minimal power dissipation during standby modes.

Replacement Considerations

Consider the SN74LVCH16373A from Texas Instruments or the NXP 74LVCH16373A as functional equivalents. Verify pin compatibility and electrical parameter alignment before substitution. Check for differences in bus hold functionality or package variations.