ISL88706IB844Z

Supervisors Overview

The ISL88706IB844Z is a microprocessor supervisor circuit manufactured by Intersil, now part of Renesas Electronics. It integrates a watchdog timer, power-fail comparator, manual reset input, and an adjustable power-on reset function. The device operates within a supply voltage range of 2 V to 5.5 V, with a typical rated voltage of 5 V. It is housed in an 8-lead Small Outline (SOIC) package with a 1.27 mm pin pitch. The component supports surface-mount installation and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system fault detection
• Includes a power-fail comparator for voltage monitoring
• Features an adjustable power-on reset threshold
• Supports manual reset input functionality

Supervisors Applications

• Microprocessor system power supervision
• Battery function monitoring in embedded systems
• Industrial control unit reset management

Supervisors Procurement Notes

Verify the manufacturer designation on the datasheet, as Intersil products are now managed under the Renesas Electronics portfolio. Confirm that the specific suffix IB844Z corresponds to the required SOIC-8 package and industrial temperature grade. Ensure compatibility with existing board layouts regarding the 8-lead small outline footprint before procurement.

Supervisors Selection Notes

Select this component when a single-channel supervisor with integrated watchdog and adjustable reset thresholds is required. It is suitable for designs needing manual reset capability alongside automatic power-fail detection. Verify that the operating voltage range of 2 V to 5.5 V aligns with the target system's power rails and that the SOIC-8 package fits the available PCB space.

Supervisors Part Context

This device belongs to the ISL8870x family of microprocessor supervisors, which includes variants like the ISL88705, ISL88707, and ISL88708. These components share similar core functionalities but differ in specific reset thresholds or feature sets. The ISL88706 specifically provides a configurable power-on reset, distinguishing it from fixed-threshold counterparts in the same series.

Supervisors Replacement Considerations

Direct substitutes within the same family include the ISL88705, ISL88707, and ISL88708. Verify that the replacement part offers compatible reset thresholds and package dimensions. Cross-reference the specific suffix codes to ensure identical thermal and electrical specifications.