DS1233D-5+T&R

Supervisors Overview

The DS1233D-5+T&R is a Supervisory Circuit manufactured by Analog Devices Inc. (Maxim Integrated). It provides reset, watchdog timer, and voltage monitor functions for microprocessor systems. The device operates with supply voltages from 4.25V to 5.75V, ensuring reliable monitoring of the power rail. It features an active-low reset output that asserts when the supply voltage drops below the threshold or when the watchdog timer expires without proper servicing. The component includes a manual reset input and a battery fault detect output to manage backup power scenarios.

Supervisors Feature Summary

• Integrated supervisory circuit combining reset generation, watchdog timer, and voltage monitoring in a single package
• Active-low reset output ensures system stability during power fluctuations and brown-out conditions
• Manual reset input allows external triggering of the reset sequence independent of power status
• Battery fault detect output signals low-voltage conditions on backup power supplies

Supervisors Applications

• Microprocessor-based embedded systems requiring reliable power supervision
• Industrial control units needing watchdog timer functionality for fault recovery
• Data acquisition systems utilizing backup batteries for non-volatile memory retention

Supervisors Procurement Notes

Verify the suffix T&R indicates tape and reel packaging configuration. Confirm the D package designation corresponds to the specific footprint required for your PCB layout. Ensure the + symbol denotes lead-free compliance per RoHS standards. Cross-reference the manufacturer's latest datasheet for any updates to electrical characteristics or recommended operating conditions before finalizing procurement.

Supervisors Selection Notes

Select this component when a combined reset, watchdog, and voltage monitor solution is required for 5V logic systems. Verify that the trip point voltage aligns with the minimum operating voltage of the target microprocessor. Consider the package type availability and whether tape and reel packaging suits the automated assembly process. Check if the manual reset input and battery fault outputs meet the specific system interface requirements.

Supervisors Part Context

This part belongs to the Maxim Integrated DS1233 family of supervisory circuits. These devices are designed to provide comprehensive power management protection for digital systems. The family typically offers variations in trip points and package types to suit different voltage rails and form factor constraints. The DS1233 series is widely used in applications where system reliability and automatic recovery from power anomalies are critical.

Supervisors Replacement Considerations

Consult the manufacturer's cross-reference guide for verified equivalent parts. Ensure any substitute maintains compatible reset thresholds, watchdog timing capabilities, and package dimensions. Verify that alternative components support the same supply voltage range and offer similar functional outputs such as manual reset and battery fault detection.