MAX6366LKA31+T - 3.08V SOT-23-8 Processor Supervisor | Maxim Integrated
MPN: MAX6366LKA31+T ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.1091 | $1.11 |
| 10 | $1.1091 | $11.09 |
| 100 | $1.1091 | $110.91 |
| 500 | $1.1091 | $554.55 |
| 1,000 | $1.1091 | $1,109.10 |
MAX6366LKA31+T Overview
A voltage supervisor, also called a supply supervisor, reset monitor, or microprocessor reset circuit, monitors a power rail and asserts or deasserts a reset signal when the rail crosses defined monitoring thresholds. This class of power-management IC belongs to the broader sequence of power-integrity device, supervisor, and system-protection component hierarchy. In a microprocessor or FPGA design, the supervisor helps prevent operation from an invalid supply voltage, while its auxiliary controls can coordinate backup supply behavior and sensitive circuit gating.
The verified information identifies the MAX6366LKA31+T as a 3.08 V processor supervisor variant. The exact threshold tolerance, supply-current values, reset timing, operating-temperature limits, and truth-table details are not present in the supplied excerpts and must be confirmed in the manufacturer datasheet before release to production. The MAX6366 family is described by Analog Devices as low-power supervisory circuits for power-supply monitoring, battery-backup control functions, and memory write protection in microprocessor systems.
The part is packaged in an 8-pin SOT-23 surface-mount package, making it suitable for compact embedded boards where a dedicated reset monitor is preferable to relying only on software watchdog behavior. Distributor records list the MAX6366LKA31+T with push-pull, totem-pole output architecture and one-channel monitoring. Mouser describes the related family as SOT23 low-power microprocessor supervisory circuits with battery backup and chip-enable gating.
Typical applications include embedded processor boards, industrial controllers, battery-backed systems, memory write-protection circuits, and mixed-signal equipment requiring deterministic power-fail signaling. Designers should check the exact MAX6366LKA31+T pinout, threshold polarity, enable timing, and output behavior against the manufacturer datasheet, especially when replacing a supervisor with different reset polarity or threshold options.
This product page combines the verified distributor identity and package information with application guidance and sourcing links. It does not infer unprovided electrical values, and the complete package pin mapping should be taken from the official MAX6366 datasheet.
Drop-in alternatives for MAX6366LKA31+T — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MAX6366HKA31+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX6366PKA29+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX6371KA+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX6373KA+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX6366LKA29+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX6366LKA31+T Maximum Ratings & Electrical Characteristics
| Product Type | Microprocessor voltage supervisor |
| Monitoring Channels | 1 channel |
| Nominal Reset Threshold | 3.08 V |
| Output Architecture | Push-pull, totem-pole |
| Package | SOT-23-8 |
| Battery Backup Function | Supported by MAX6366 family |
| Chip Enable Gating | Supported by MAX6366 family |
| Memory Write Protection | Supported by MAX6366 family |
| Mounting Type | Surface mount |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
| Lead-Free Status | unknown |
MAX6366LKA31+T sot-23-8 Pin Configuration Guide
Pin configuration for MAX6366LKA31+T (sot-23-8 package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MAX6366LKA31+T.
Refer to the datasheet for full pin configuration.
Typical Applications
MAX6366LKA31+T is suitable for 6 applications: Embedded Microcontroller Reset, Battery-Backed Industrial Control, Memory Write Protection, Processor Power Sequencing, FPGA and Processor Embedded Boards, Portable and Battery-Powered Equipment.
Embedded Microcontroller Reset
The MAX6366LKA31+T is suitable for monitoring a microprocessor supply rail near the 3.08 V threshold identified in the verified distributor data. Place the supervisor in the power-sequencing path so the processor receives a controlled signal when the monitored rail becomes invalid. Its 8-pin SOT-23 package supports compact embedded boards, while the MAX6366 family’s supervisor architecture avoids relying solely on software watchdog resets. The verified excerpts do not state the complete threshold tolerance, reset pulse width, or enable timing, so these values must be checked in the official datasheet before setting the system’s reset release and power-fail margins.
Recommended
Battery-Backed Industrial Control
The MAX6366LKA31+T fits battery-backed control systems that need a dedicated power-monitoring element rather than a software-only voltage check. The MAX6366 family is specifically described by Analog Devices as supporting battery-backup control functions and memory write protection. Integrating the supervisor near the processor supply can provide a hardware reset indication during rail transitions, while the push-pull, totem-pole output identified by DigiKey can interface directly with a suitably designed reset network. Verify the backup-supply current, threshold tolerance, and timing values in the manufacturer datasheet because those specifications are not present in the supplied excerpts.
Recommended
Memory Write Protection
The MAX6366LKA31+T can support memory write-protection sequencing in embedded systems because Analog Devices identifies the MAX6365–MAX6368 family as simplifying memory write protection in microprocessor systems. Use the supervisor and its auxiliary control functions to qualify writes only when the monitored supply is valid. This approach is useful in systems where uncontrolled processor operation during a power transition could corrupt nonvolatile or external memory. The exact logic truth table, write-enable timing, and auxiliary-pin polarity are not included in the verified web excerpts and must be taken from the official datasheet before schematic release.
Recommended
Processor Power Sequencing
The MAX6366LKA31+T can act as a hardware power-valid monitor in a multi-rail embedded platform. The supervisor observes the selected rail and provides a reset-related signal to the processor, while chip-enable gating helps prevent downstream logic from being enabled during invalid power conditions. Its SOT-23-8 footprint makes it practical for compact control boards and allows the monitoring function to be placed close to the protected device. The exact sequencing thresholds and delays must be coordinated with every rail in the system; the verified data confirms the family functions but does not provide the complete timing table.
Recommended
FPGA and Processor Embedded Boards
A MAX6366LKA31+T supervisor is useful in compact FPGA or processor boards where a reliable power-valid indication is needed during configuration and reset. The 3.08 V threshold variant should be selected only when the board’s monitored supply tolerance and startup profile are compatible with the datasheet limits. Place the device so its 8-pin SOT-23 package can be routed close to the supply and reset network, then confirm that the push-pull output meets the receiving device’s input-voltage and timing requirements. The supplied records do not state the complete absolute maximum ratings, so those must be obtained from the official documentation.
Recommended
Portable and Battery-Powered Equipment
The MAX6366LKA31+T is appropriate for portable equipment where a supply transition must trigger hardware protection rather than being handled only by firmware. The MAX6366 family’s low-power supervisory architecture is intended for power-supply monitoring and battery-backup control, which helps preserve safe system behavior as an energy source changes state. Designers should budget the supervisor’s quiescent current, threshold accuracy, and auxiliary-control loading against the battery life target. Because those numerical electrical values are absent from the verified excerpts, they are marked as datasheet-required rather than estimated in this listing.
Recommended
Recommended Products Summary
Engineering reference data for MAX6366LKA31+T — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MAX6366HKA31+T | MAX6366PKA29+T | MAX6371KA+T | MAX6373KA+T | MAX6366LKA29+T |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | SOT-23-8 | SOT-23-8 | SOT-23-8 | SOT-23-8 | SOT-23-8 | SOT-23-8 |
| Product Category | Microprocessor voltage supervisor | Supervisory circuit | Low-power microprocessor supervisory circuit | Supervisory circuit | Supervisory circuit | Low-power microprocessor supervisory circuit |
Key Differentiators
- Target threshold selection (vs MAX6366LKA29+T)
- Verified same-family replacement candidate (vs MAX6366HKA31+T)
- Integrated backup and gating functions (vs MAX6371KA+T)
Design Notes
Validate the monitored rail against the MAX6366LKA31+T reset threshold before layout release. The verified distributor data identifies a 3.08 V threshold, but it does not provide the threshold tolerance or hysteretic behavior. Confirm both the minimum and maximum rail conditions, startup ramp rate, and reset-release timing in the manufacturer datasheet so normal rail variation cannot cause nuisance resets or unsafe operation.
Place the SOT-23-8 supervisor close to the monitored power rail and the protected processor reset input. Keep the power path short and route the reset signal away from high-current switching nodes. Because the package is small, check the manufacturer land pattern, exposed-pad requirements, paste stencil, and assembly tolerances rather than relying on a generic SOT-23 footprint.
The verified listing identifies the MAX6366LKA31+T output as push-pull, totem-pole. Confirm the output voltage levels, timing, and polarity against the receiving processor before connecting it. If the reset line is long or crosses noisy regions, add only the filtering or isolation supported by the system timing; excessive capacitance can delay reset release and create incompatibilities with the downstream device.
Do not substitute a MAX6366 threshold or family option solely because it uses the same SOT-23-8 package. MAX6366LKA29+T and MAX6366PKA29+T are listed as 2.9 V variants, which is a nominal 0.18 V difference from the 3.08 V target. Confirm threshold polarity, reset polarity, auxiliary-control behavior, and timing before approving any drop-in replacement.
Compliance Information
The supplied distributor data does not provide an unambiguous compliance declaration for the exact MAX6366LKA31+T ordering suffix. RoHS, REACH, lead-free, halogen-free, and conflict-mineral status must be confirmed from current manufacturer or authorized-distributor documentation.
