ADM6316CY29ARJ-RL7

Supervisors Overview

The ADM6316CY29ARJ-RL7 is a supervisory circuit from Analog Devices designed to monitor power supply voltage levels and code execution integrity in microprocessor-based systems. It features a fixed reset threshold voltage of 2.9 V, selected from 26 options ranging from 2.5 V to 5 V in 100 mV increments. The device includes an on-chip watchdog timer with timeout options of 6.3 ms, 102 ms, 1600 ms, or 25.6 s (typical) and a manual reset input. It offers low power consumption of 5 μA and guarantees a valid reset output down to VCC = 1 V. Packaged in a 5-lead SOT-23, it operates over the industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for monitoring code execution integrity alongside power supply supervision
• Includes a manual reset input allowing external assertion of the reset signal via push button
• Provides glitch immunity and ensures reset output validity down to 1 V supply voltage

Supervisors Applications

• Microprocessor systems
• Controllers
• Portable equipment

Supervisors Procurement Notes

Verify the specific suffix ARJZ against the requested RL7 designation, as these indicate different packaging formats. Confirm RoHS compliance status, as Z-suffixed parts are typically compliant while non-Z variants may not be. Ensure the 2.9 V threshold matches system requirements. Check lead-free status if environmental regulations apply. Validate the reel quantity and storage conditions upon receipt.

Supervisors Selection Notes

Select this component when a fixed 2.9 V threshold is required for voltage supervision. The integrated watchdog function simplifies design by eliminating external timing components. Consider the manual reset capability for system testing or emergency shutdowns. Verify that the 5 μA quiescent current meets battery life requirements. Ensure the SOT-23 package fits the available PCB space.

Supervisors Part Context

This part belongs to the ADM6316/ADM6317/ADM6318/ADM6319/ADM6320/ADM6321/ADM6322 family of supervisory circuits. These devices share common features such as watchdog timers and manual reset inputs but differ in output stage configurations and reset thresholds. The ADM6316 specifically combines a watchdog input with a manual reset input and a push-pull active-low output stage.

Supervisors Replacement Considerations

Direct substitutes within the same family include ADM6316CYxxARJZ-R7 variants with different threshold voltages. Cross-family replacements require matching the 5-lead SOT-23 package and verifying equivalent watchdog and manual reset functionality. Ensure the replacement supports the required 1 V minimum operating voltage and industrial temperature range.