SN74ALVCH162373KR

Overview

The SN74ALVCH162373KR is a 16-bit transparent D-type latch with 3-state outputs from the Texas Instruments Widebus family. It operates at supply voltages between 1.65 V and 3.6 V. The device contains two independent 8-bit latches, each featuring active bus-hold circuitry on data inputs to eliminate external pullup or pulldown resistors. Outputs include equivalent 26-Ω series resistors to reduce overshoot and undershoot. It provides ESD protection exceeding 2000 V via the human-body model and 200 V via the machine model.

Feature Summary

• Active bus-hold circuitry maintains valid logic states on unused or undriven data inputs without requiring external components.
• Integrated output ports feature equivalent 26-Ω series resistors designed to minimize signal overshoot and undershoot.
• High-impedance state capability allows driving bus lines without interface or pullup components while retaining internal data.

Applications

• Implementing buffer registers
• Configuring I/O ports
• Bidirectional bus drivers
• Working registers

Procurement Notes

Verify the specific package type associated with the KR suffix against the official datasheet ordering information. Confirm that the component meets the required operating temperature range of -40°C to 85°C. Ensure compatibility with the specified 1.65-V to 3.6-V supply voltage constraints for your target application environment.

Selection Notes

Select this component when designing systems requiring 16-bit data storage with high-speed transparent latching capabilities. It is suitable for applications needing integrated termination to manage signal integrity without external resistors. Consider its low power consumption and wide voltage operation range for portable or battery-powered designs.

Part Context

This part belongs to the SN74ALVCH162373 family, which includes variants in SSOP (DL), TSSOP (DGG), and VFBGA (GQL) packages. The KR suffix specifically denotes the VFBGA package configuration. Other family members share identical electrical characteristics but differ in physical footprint and pinout arrangement.

Replacement Considerations

Public confirmed substitute part numbers: SN74ALVCH162373GR, SN74ALVCH162373LR, SN74ALVCH162373DL.