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Analog Devices Inc./Maxim Integrated MAX6336US24D1
- Part No.:
- MAX6336US24D1
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US24D1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,971
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Product details
Overview
MAX6336US24D1 from Maxim Integrated is a push/pull, active-low microprocessor supervisory circuit in SOT143 package, designed for reliable power-on reset and brownout detection in 1.8V–3.3V digital systems. It asserts RESET when VCC falls below 2.40V (±1.8% at +25°C) or MR is pulled low, with guaranteed operation down to VCC = 0.7V and a minimum 20ms reset timeout period.
For engineers reviewing the MAX6336US24D1 datasheet, MAX6336US24D1 pinout, MAX6336US24D1 application, or MAX6336US24D1 equivalent, key selection factors include factory-trimmed 2.4V reset threshold, 20ms nominal timeout, ultra-low 3.3µA supply current at 1.8V, debounced manual-reset input, and compatibility with space-constrained embedded controllers requiring stable low-voltage reset signaling.
Technical Context
The MAX6336US24D1 implements a precision bandgap-based voltage comparator with factory-trimmed 2.40V reset threshold (±1.8% at +25°C, ±3% over –40°C to +125°C), immune to fast VCC transients up to 24µs at 100mV overdrive. Its internal timing circuit generates a fixed 20ms minimum reset pulse width after VCC recovery or MR release.
It features a debounced manual-reset input (MR) with 20kΩ internal pull-up, supporting direct connection of a momentary switch to GND without external RC filtering. The push/pull RESET output drives low to ≤0.4V at 50µA sink and high to ≥0.8×VCC at 200µA source, ensuring clean logic-level signaling into µP reset inputs across its full 0.7V–5.5V operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.40V ±1.8% (25°C), ±3% (–40°C to +125°C); ensures accurate brownout detection for 2.5V systems |
| Reset Timeout Period | 20ms minimum; guarantees sufficient reset hold time for reliable µP initialization |
| Supply Voltage Range | 0.7V to 5.5V; supports operation during deep brownout and battery-depleted states |
| Supply Current | 3.3µA typical at 1.8V/25°C; enables multi-year battery life in portable equipment |
| RESET Output Type | Push/pull active-low; eliminates need for external pull-up resistor and simplifies interface |
| MR Input | Debounced with 20kΩ internal pull-up; allows direct switch-to-GND connection without external components |
| Operating Temperature | –40°C to +125°C; qualified for automotive and industrial under-hood applications |
Pinout & Package
MAX6336US24D1 is housed in a 4-pin SOT143 package (1.3mm × 2.1mm × 0.95mm), optimized for space-constrained PCB layouts. Pin 1 is VCC, Pin 2 is RESET (active-low push/pull), Pin 3 is MR (manual reset input), and Pin 4 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Power supply input | Accepts 0.7V–5.5V; powers internal comparator and output stage; valid down to 0.7V for guaranteed reset assertion |
| RESET (Pin 2) | Active-low reset output | Push/pull driver; sinks ≤0.4V @ 50µA, sources ≥0.8×VCC @ 200µA; directly interfaces µP reset pins |
| MR (Pin 3) | Manual reset input | Logic-low active; internally pulled up to VCC via 20kΩ; requires no external debounce components |
| GND (Pin 4) | Ground reference | Common return path for VCC, RESET, and MR; essential for accurate threshold sensing and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 2.4V threshold | Enables precise power monitoring for 2.5V rails without calibration or external resistors |
| 20ms minimum reset timeout | Meets JEDEC JESD78 reliability requirements for µP reset hold time |
| 0.7V minimum operating voltage | Ensures valid RESET assertion during severe brownout conditions before system shutdown |
| 3.3µA supply current at 1.8V | Reduces quiescent power in always-on monitoring circuits by >90% vs. legacy supervisors |
| Integrated MR debouncing | Eliminates need for external RC network or firmware polling, reducing BOM count and layout area |
Applications
| Battery-Powered IoT Sensors | Automotive Body Control Modules |
|---|---|
Use Scenario: Long-life sensor nodes powered by coin cells or energy harvesters require reliable reset during cold-start and voltage sag. IC Role / Device Role / Timing Role: Supervisory circuit asserting active-low RESET to ARM Cortex-M0+ MCU upon VCC drop below 2.4V or button press. Use Value: 3.3µA ICC and 0.7V operation extend battery life beyond 10 years; 20ms timeout ensures full core initialization before firmware execution. | Use Scenario: Central body controller managing door locks, lighting, and HVAC must survive load-dump and cranking transients. IC Role / Device Role / Timing Role: Reset supervisor monitoring 2.5V domain supply, asserting RESET during battery voltage collapse below 2.4V. Use Value: ±3% threshold tolerance over –40°C to +125°C ensures consistent behavior across temperature extremes; transient immunity prevents spurious resets during alternator switching. |
| Industrial PLC I/O Modules | Medical Portable Diagnostics |
Use Scenario: DIN-rail mounted I/O modules operate continuously in unregulated 24VDC environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Power monitor providing clean, glitch-free reset signal to FPGA configuration logic during power-up and brownout. Use Value: Push/pull output eliminates external pull-up, reducing component count; SOT143 footprint saves board space in dense module designs. | Use Scenario: Handheld ultrasound or glucose meters use single-cell Li-ion batteries whose voltage drops from 4.2V to 2.8V during discharge. IC Role / Device Role / Timing Role: Supervisor detecting 2.4V threshold crossing to trigger controlled shutdown before data corruption occurs. Use Value: Debounced MR supports user-initiated recalibration; 20ms timeout aligns with FDA-required boot-time validation windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6314US24D2-T | Same 2.4V threshold and 20ms timeout, but open-drain RESET output; requires external pull-up resistor | Suitable for bidirectional µP reset pins (e.g., Motorola 68HC11), not for direct push/pull drive | Select when interfacing with µPs requiring open-drain reset arbitration or wired-OR configurations |
| TLV803EB24DBZR | 2.43V threshold (±0.5%), 20ms timeout, push/pull output, but minimum VCC = 1.6V (not 0.7V) | Lacks ultra-low-voltage operation; unsuitable for deep brownout detection below 1.6V | Choose for cost-sensitive consumer applications where 0.7V operation is unnecessary and tighter threshold tolerance is required |
Compared with MAX6336US24D1, MAX6314US24D2-T offers identical threshold and timing but demands external biasing, while TLV803EB24DBZR trades ultra-low-voltage capability for improved threshold accuracy-making MAX6336US24D1 optimal for battery-depleted or automotive cranking scenarios.
Availability
MAX6336US24D1 is available at Aetrix Electronics and suitable for battery-powered IoT sensors, automotive body control modules, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and guaranteed factory-trimmed performance.
Supply support for MAX6336US24D1 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 and mixed-signal ICs for power management, sensing, and interface applications in industrial, automotive, and communications markets.
The MAX633x family delivers ultra-low-voltage, low-power microprocessor supervisory circuits targeting space- and energy-constrained embedded systems needing robust reset functionality without external components.
FAQ
What is the exact reset threshold voltage of MAX6336US24D1 and how does it vary with temperature?
The MAX6336US24D1 has a factory-trimmed nominal reset threshold of 2.40V, with ±1.8% tolerance at +25°C and ±3% over the full –40°C to +125°C operating range. This variation is fully characterized and guaranteed in the datasheet, ensuring predictable brownout response across automotive and industrial thermal environments without requiring system-level calibration.
Does MAX6336US24D1 support manual reset, and what is required to implement it?
Yes, MAX6336US24D1 includes a debounced manual-reset input (MR) with an internal 20kΩ pull-up resistor. To implement manual reset, connect a normally open momentary switch between MR (Pin 3) and GND. No external RC network or firmware polling is needed-the device handles debouncing internally, simplifying design and reducing BOM count.
What is the minimum supply voltage at which MAX6336US24D1 guarantees correct reset assertion?
MAX6336US24D1 guarantees correct RESET assertion and valid logic levels down to VCC = 0.7V, enabling reliable operation during deep brownout conditions where other supervisors fail. This ultra-low-voltage capability is critical for battery-powered devices nearing end-of-life or automotive systems during engine cranking.
How does the 20ms reset timeout period of MAX6336US24D1 benefit microprocessor initialization?
The 20ms minimum reset timeout period of MAX6336US24D1 ensures the microprocessor remains held in reset long enough for internal PLLs, memory arrays, and clock trees to stabilize after power-up or brownout recovery. This meets or exceeds JEDEC JESD78 requirements for reliable boot sequencing in Cortex-M and RISC-V based controllers.
Is MAX6336US24D1 pin-compatible with other Maxim reset supervisors, and which ones?
Yes, MAX6336US24D1 is pin-compatible with MAX811/MAX812 and MAX6314/MAX6315 families in the same SOT143 package. This allows drop-in replacement in existing designs-though output structure (push/pull vs. open-drain) and reset threshold must be verified, as MAX6336US24D1 uses active-low push/pull output with 2.4V threshold.
MAX6336US24D1 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:
- 2.4V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-4
MAX6336US24D1 FAQ
1.How can I place an order for MAX6336US24D1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US24D1 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 MAX6336US24D1 reliable?
The price and inventory of MAX6336US24D1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US24D1 is usually 5 days.
3.What payment methods are accepted for MAX6336US24D1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US24D1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US24D1?
MAX6336US24D1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US24D1 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 MAX6336US24D1?
For technical support, including MAX6336US24D1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US24D1 requirements.
6.How does Aetrix verify that MAX6336US24D1 is sourced from the original manufacturer or authorized distributors?
All MAX6336US24D1 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 MAX6336US24D1 meets industry standards.
7.What is the process for return or replacement of MAX6336US24D1?
All MAX6336US24D1 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US24D1, 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 MAX6336US24D1 part is unused and in its original packaging.
Return procedure for MAX6336US24D1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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