NE1619DS,118

Overview

The NE1619DS,118 is a temperature and voltage monitor designed for microprocessor-based systems. It features five analog inputs, a remote temperature sensor input, and an onboard local temperature sensor. The device monitors its own power supply and provides digital inputs for processor ID codes. Communication occurs via an SMBus interface, allowing programming for operation and data collection. Readings are converted by an onboard A-to-D converter cycling through measurements in approximately one second. Data formats include 8-bit digital 2’s complement for temperature and straight format for other parameters.

Feature Summary

• Monitors local and remote temperatures with specified accuracy levels
• Supports monitoring of multiple power supplies including 12 V, 5 V, 3.3 V, 2.5 V, VCCP, and VDD
• Features programmable temperature and voltage limits for alarm generation
• Includes a reset pulse output function and SMBus serial interface

Applications

• System thermal and hardware monitor
• Desktop computers
• Notebook computers
• Industrial controllers
• Telecom equipment

Procurement Notes

Verify the specific ordering suffix DS corresponds to the SSOP16 package variant when sourcing. Confirm compatibility with SMBus protocols required by the host controller. Ensure that external pull-up resistors are included in the design for SDA and SCL lines as specified in the functional description. Check for any obsolescence notices or recommended replacement components from the manufacturer.

Selection Notes

Select this component for applications requiring simultaneous monitoring of multiple voltage rails and temperature points. Consider the 16-lead SSOP package constraints for board layout. Evaluate the need for remote versus local temperature sensing based on system architecture. Verify that the SMBus address configuration meets the system's addressing requirements.

Part Context

The NE1619 is part of a family of integrated circuits designed for system management. It is compatible with Intel Heceta 4 specifications and reference designs. The device integrates analog front-end capabilities with digital control logic to provide comprehensive monitoring solutions for computing and industrial platforms.

Replacement Considerations

Check for direct pin-compatible replacements if the NE1619DS,118 is unavailable. Ensure any substitute supports the same SMBus interface and voltage monitoring ranges. Verify that the replacement component offers similar temperature accuracy and package dimensions.