ADM6318CY45ARJZ-R7

Supervisors Overview

The ADM6318CY45ARJZ-R7 is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor power supply voltage levels and code execution integrity in microprocessor-based systems. It operates within an industrial temperature range of -40°C to +85°C and is housed in a 5-lead SOT-23 package. The device features a fixed reset threshold voltage of 4.5 V, with a typical accuracy of 2.5%. It includes a watchdog timer for monitoring system execution and provides a push-pull active low reset output. The circuit consumes low power, drawing approximately 5 μA, and ensures the reset output remains valid down to a supply voltage of 1 V.

Supervisors Feature Summary

• Integrates a watchdog timer to detect code execution failures and trigger resets if strobing does not occur within preset periods.
• Includes a manual reset input allowing external assertion of a reset signal via a push button.
• Provides glitch immunity against power supply transients to prevent false triggering.
• Delivers a guaranteed reset output signal valid at supply voltages as low as 1 V.

Supervisors Applications

• Microprocessor systems requiring voltage supervision
• Portable equipment needing low-power management
• Controllers and intelligent instruments
• Computers and embedded systems

Supervisors Procurement Notes

Verify the specific suffix CY45 corresponds to the 4.5 V threshold and manual reset configuration before procurement. Confirm the R7 suffix indicates reel packaging. Ensure compatibility with the target system's voltage requirements and temperature specifications. Cross-reference the manufacturer datasheet for pinout and electrical characteristics. Validate RoHS compliance status through official documentation.

Supervisors Selection Notes

Select this component when a fixed 4.5 V threshold is required for power supply monitoring. Choose this part if manual reset functionality is necessary alongside automatic power-on reset. Consider the low quiescent current for battery-operated applications. Verify that the SOT-23-5 package fits the board layout constraints. Ensure the industrial temperature range meets the operational environment needs.

Supervisors Part Context

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

Supervisors Replacement Considerations

Direct substitutes include other parts from the ADM631x family with matching threshold voltages and output configurations, such as ADM6318CY46ARJZ-R7 or ADM6318CY48ARJZ-R7, provided the threshold voltage difference is acceptable. Verify functional equivalence regarding watchdog and manual reset features.