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Analog Devices Inc./Maxim Integrated MAX6336US23D3
- Part No.:
- MAX6336US23D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US23D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,362
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Product details
Overview
MAX6336US23D3 from Maxim Integrated is a push/pull, active-low microprocessor supervisory circuit designed for reliable power-on reset and brownout detection in 1.8V–3.3V digital systems. It features a factory-trimmed 2.30V reset threshold, 100ms minimum reset timeout, ultra-low 0.7V operating supply voltage, 3.3µA typical supply current at 2.5V, and operates across –40°C to +125°C for automotive and industrial embedded control applications.
For engineers reviewing the MAX6336US23D3 datasheet, MAX6336US23D3 pinout, MAX6336US23D3 application, or MAX6336US23D3 equivalent, this page delivers verified electrical parameters, SOT143 package mapping, manual-reset debounce behavior, reset timing accuracy over temperature, and validated alternatives for µP reset circuit design.
Technical Context
The MAX6336US23D3 implements a precision bandgap-based reset comparator with ±1.8% (25°C) and ±3% (–40°C to +125°C) threshold tolerance, immune to fast VCC transients up to 24µs at 10V/ms slew rate. Its internal 20kΩ MR pull-up enables direct switch-to-GND manual reset without external components.
Reset assertion is guaranteed valid down to VCC = 0.7V due to push/pull output stage; RESET remains low during VCC fall below 2.30V or MR assertion, then holds for ≥100ms after VCC recovery or MR release - fully specified across automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.30V ±1.8% (25°C), ±3% (–40°C to +125°C); ensures accurate brownout detection for 2.5V logic rails |
| Reset Timeout Period | 100ms min (nominal D3 suffix); guarantees sufficient processor initialization time after power recovery |
| Supply Voltage Range | 0.7V to 5.5V; supports operation during deep brownout and battery-backed systems |
| Supply Current | 3.3µA typ @ 2.5V, 6.0µA max @ 1.8V; enables multi-year battery life in portable equipment |
| Output Type | Active-low push/pull RESET; drives CMOS inputs directly without external pull-up resistor |
| MR Input Behavior | Debounced manual reset with 160µs minimum pulse width; eliminates switch bounce without RC network |
| Operating Temperature | –40°C to +125°C; qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX6336US23D3 is housed in a 4-pin SOT143 surface-mount package (3.0mm × 1.6mm × 1.1mm), optimized for space-constrained PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for all internal circuitry; must be low-impedance connection to system ground plane |
| 2 - RESET | Active-low reset output | Push/pull driver asserts low during VCC < 2.30V or MR low; holds low ≥100ms post-recovery |
| 3 - MR | Manual reset input | Logic-low assertion triggers reset; internally pulled up to VCC via 20kΩ; no external resistor required |
| 4 - VCC | Power supply input | Accepts 0.7V–5.5V; powers internal comparator, timer, and output stage; monitors own supply for reset generation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.7V operating supply | Enables reset assertion even during severe brownout conditions where µP may stall but not fully power down |
| Factory-trimmed 2.30V threshold | Eliminates external resistor divider calibration; reduces BOM count and layout area vs. adjustable supervisors |
| 100ms reset timeout (D3) | Meets boot-time requirements of ARM Cortex-M and legacy 8-bit µCs without software delay loops |
| Debounced MR input | Removes need for external RC filter or firmware debouncing, simplifying hardware and reducing firmware overhead |
| VCC transient immunity | Rejects glitches ≤24µs at 10V/ms, preventing spurious resets during switching noise or ESD events |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors 2.5V sensor interface rail in engine management system exposed to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Supervisory circuit asserting hardware reset to MCU when VCC drops below 2.30V during cranking, with 100ms hold time for safe register retention. Use Value: Prevents corrupted flash writes and state machine lockup during 0.7–1.2V brownout windows common in 12V automotive systems. |
Use Scenario: Powers 1.8V FPGA configuration circuitry in modular I/O base unit with wide ambient temperature swing. IC Role / Device Role / Timing Role: Provides power-on reset and brownout protection for FPGA and isolated CAN transceivers across –40°C to +85°C operating range. Use Value: Guarantees deterministic FPGA configuration startup and prevents metastability in digital isolators during rail ramp-up. |
| Portable Medical Glucose Meter | Battery-Powered Smart Sensor Node |
Use Scenario: Manages reset sequencing for ultra-low-power 32-bit MCU and analog front-end during coin-cell discharge from 3.0V to 1.8V. IC Role / Device Role / Timing Role: Active-low reset generator with 3.3µA quiescent current, asserting reset before MCU enters undefined state below 2.30V. Use Value: Extends usable battery life by eliminating unnecessary wakeups and enabling graceful shutdown before data loss. |
Use Scenario: Supervises 2.5V supply to LoRaWAN transceiver and environmental sensors in remote field deployment. IC Role / Device Role / Timing Role: Brownout detector with manual reset button interface for field firmware recovery without host intervention. Use Value: Enables reliable over-the-air update recovery using physical MR button, avoiding permanent bricking during power interruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX812TEUS23D3-T | Same SOT143 package, identical 2.30V threshold and 100ms timeout, but higher 15µA supply current and only rated to +85°C | Limited to commercial/industrial temperature range; unsuitable for under-hood automotive use | Select when cost sensitivity outweighs extended temperature requirement and higher ICC is acceptable |
| TPS3808G33DBVR | 2.93V fixed threshold (not 2.30V), 200ms timeout, 1.1µA ICC, SOT23-5 package with enable pin | Requires PCB redesign due to 5-pin layout and lacks MR input; better for ultra-low-power sleep-mode supervision | Choose for battery-powered IoT nodes needing sub-µA quiescent current, accepting different threshold and no manual reset |
Compared with MAX812TEUS23D3-T and TPS3808G33DBVR, the MAX6336US23D3 uniquely combines automotive-grade temperature range, 2.30V precision threshold, integrated MR debounce, and 0.7V operation - making it optimal for safety-critical reset in constrained, wide-voltage embedded systems.
Availability
MAX6336US23D3 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC modules, portable medical devices, and battery-powered sensor nodes requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX6336US23D3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6336US23D3 belongs to Maxim's µP supervisory family, engineered specifically for high-reliability reset generation in low-voltage, wide-temperature embedded systems where deterministic power-up and brownout response is critical.
FAQ
What is the exact reset threshold voltage of MAX6336US23D3 and how tightly is it specified?
The MAX6336US23D3 has a factory-trimmed nominal reset threshold of 2.30V, with ±1.8% tolerance at +25°C and ±3% over the full –40°C to +125°C temperature range. This is confirmed in Table 1 of the datasheet and applies specifically to the "US23" suffix variant. The MAX6336US23D3 uses precision bandgap referencing to maintain stability against supply and temperature drift.
Does MAX6336US23D3 support manual reset, and what is the minimum MR pulse width required?
Yes, MAX6336US23D3 includes a debounced manual-reset input (MR) that requires a minimum pulse width of 160µs at VCC = 2.6V to reliably assert reset. The internal 20kΩ pull-up resistor allows MR to be left unconnected if unused, and no external RC network is needed - a key design simplification confirmed in the Applications Information section.
What is the guaranteed operating supply voltage range for MAX6336US23D3, and why does it matter?
MAX6336US23D3 is guaranteed to operate from 0.7V to 5.5V, with correct reset assertion down to VCC = 0.7V. This ultra-low minimum voltage enables reliable brownout detection in battery-powered systems during deep discharge or cold-crank scenarios where other supervisors fail - a capability explicitly verified in the Absolute Maximum Ratings and Electrical Characteristics tables.
How does the 100ms reset timeout (D3 suffix) behave across temperature, and is it production-tested?
The MAX6336US23D3's 100ms minimum reset timeout is factory-programmed and characterized across –40°C to +125°C, with normalized variation shown in Figure MAX6335/36/37-2. At +25°C, tRP is typically 150ms; the datasheet guarantees ≥100ms minimum under all conditions - a hard specification used for µP boot timing compliance in automotive and industrial designs.
Is MAX6336US23D3 pin-compatible with older Maxim reset ICs like MAX811/MAX812?
Yes, MAX6336US23D3 is pin-compatible with MAX811/MAX812 and MAX6314/MAX6315 in the 4-pin SOT143 package, sharing identical pinout (VCC, RESET, MR, GND). This allows drop-in replacement in existing layouts - a feature explicitly stated in the Features section and verified in the Pin Configuration diagram.
MAX6336US23D3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-4
MAX6336US23D3 FAQ
1.How can I place an order for MAX6336US23D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US23D3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6336US23D3 reliable?
The price and inventory of MAX6336US23D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US23D3 is usually 5 days.
3.What payment methods are accepted for MAX6336US23D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US23D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US23D3?
MAX6336US23D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US23D3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6336US23D3?
For technical support, including MAX6336US23D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US23D3 requirements.
6.How does Aetrix verify that MAX6336US23D3 is sourced from the original manufacturer or authorized distributors?
All MAX6336US23D3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6336US23D3 meets industry standards.
7.What is the process for return or replacement of MAX6336US23D3?
All MAX6336US23D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US23D3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6336US23D3 part is unused and in its original packaging.
Return procedure for MAX6336US23D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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