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Analog Devices Inc./Maxim Integrated MAX6336US16D3-T
- Part No.:
- MAX6336US16D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US16D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,796
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Product details
Overview
MAX6336US16D3-T from Maxim Integrated is a push/pull active-low microprocessor supervisory circuit designed for ultra-low-voltage power monitoring in 1.8V–3.3V digital systems. It asserts reset when VCC falls below 1.60V or manual reset (MR) is triggered, maintains reset for ≥100ms after recovery, operates down to 0.7V supply, draws only 3.3µA at 2.5V, and is packaged in SOT143 for space-constrained embedded controllers.
For engineers reviewing the MAX6336US16D3-T datasheet, MAX6336US16D3-T pinout, MAX6336US16D3-T application, or MAX6336US16D3-T equivalent, key selection criteria include guaranteed reset validity to VCC = 0.7V, factory-trimmed 1.60V threshold with ±3% tolerance over –40°C to +125°C, 100ms minimum timeout, debounced MR input, and compatibility with Pentium II–class and battery-powered critical µP systems.
Technical Context
The MAX6336US16D3-T implements a precision bandgap-based reset comparator with factory-trimmed 1.60V threshold (±1.8% typ, ±3% max over temperature), immune to fast VCC transients ≤24µs at 10V/ms slew rate. Its push/pull output drives RESET low actively during fault conditions and pulls high to ≥0.8×VCC when deasserted, supporting direct interface to CMOS µP reset inputs without external pull-up.
It integrates a debounced manual-reset input with internal 20kΩ pull-up, requiring only a momentary switch to GND for system-level reset initiation. The device guarantees correct reset state down to VCC = 0.7V - enabling reliable brownout detection in ultra-low-power portable and automotive applications where supply collapse must be captured before logic failure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.60V ±3% over –40°C to +125°C - ensures precise brownout detection for 1.8V systems without external calibration |
| Reset Timeout Period | ≥100ms - guarantees sufficient hold time for full µP initialization and peripheral stabilization |
| Supply Voltage Range | 0.7V to 5.5V - supports operation during deep brownout and enables use in sub-1V backup domains |
| Quiescent Current | 3.3µA at 2.5V - minimizes battery drain in always-on monitoring for portable equipment |
| Output Type | Active-low push/pull - eliminates need for external pull-up resistor and ensures defined logic level during reset assertion |
| MR Input Threshold | 0.42V typical - compatible with standard CMOS/LVTTL logic levels and tolerant of noisy manual-switch interfaces |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX6336US16D3-T is housed in a 4-pin SOT143 package (3.0mm × 1.6mm × 0.9mm), optimized for high-density PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 4) | Power Supply Input | Accepts 0.7V–5.5V; powers internal comparator, timer, and output stage; defines reset threshold reference |
| GND (Pin 1) | Ground Reference | Return path for all internal circuits; must be low-impedance connection to minimize noise coupling into reset comparator |
| RESET (Pin 2) | Active-Low Reset Output | Push/pull driver asserts low during VCC undervoltage or MR activation; drives high to ≥0.8×VCC when released |
| MR (Pin 3) | Manual Reset Input | Logic-low active input with internal 20kΩ pull-up; debounced internally; requires no external RC network |
Key Features
| Feature | Design Value |
|---|---|
| Factory-Trimmed 1.60V Threshold | Eliminates external resistor divider and calibration, reducing BOM count and layout area in 1.8V rail monitoring |
| 100ms Minimum Reset Timeout | Ensures µP and peripherals fully initialize before release, preventing race conditions in multi-stage boot sequences |
| 0.7V Minimum Operating Voltage | Enables valid reset assertion during deep supply collapse-critical for data retention and safe shutdown in battery-backed systems |
| Debounced Manual-Reset Input | Removes need for external debounce circuitry, simplifying front-panel reset design and improving ESD robustness |
| Transient Immunity (≤24µs glitch rejection) | Prevents spurious resets from switching noise or load-dump events in automotive and industrial power rails |
Applications
| Industrial PLC Controller | Automotive Body Control Module |
|---|---|
Use Scenario: Monitors 1.8V I/O supply in programmable logic controller during cold-cranking and load-dump events. IC Role / Device Role / Timing Role: Supervisory IC asserting active-low reset to ARM Cortex-M7 MCU upon VCC drop below 1.60V or operator-initiated MR. Use Value: Guarantees deterministic reset at 0.7V supply, preventing firmware corruption during battery voltage sag below 6V. | Use Scenario: Embedded in door module ECU to supervise 2.5V microcontroller supply during ignition cycling. IC Role / Device Role / Timing Role: Brownout detector with 100ms timeout ensuring complete CAN transceiver initialization before bus arbitration. Use Value: Factory-trimmed 1.60V threshold matches 2.5V rail tolerance, eliminating field calibration and reducing test time. |
| Portable Medical Monitor | Pentium II-Based Industrial PC |
Use Scenario: Powers on/off sequence control in handheld ECG analyzer using single-cell Li-ion (2.7–4.2V) with LDO output. IC Role / Device Role / Timing Role: Ultra-low-current (3.3µA) supervisor maintaining reset integrity during standby mode and wake-up transitions. Use Value: Extends battery life by >12 months in sleep mode while guaranteeing reliable power-on reset at 1.60V threshold. | Use Scenario: Legacy industrial computer requiring compatible replacement for MAX811/MAX812 in Pentium II motherboard power sequencing. IC Role / Device Role / Timing Role: Pin-compatible reset IC delivering identical 100ms timeout and 1.60V threshold for drop-in upgrade path. Use Value: Enables direct PCB replacement without layout change, preserving qualification for CE/UL safety certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6336US16D2-T | Same 1.60V threshold and push/pull output, but 20ms minimum timeout instead of 100ms | Suitable for faster-boot µPs where shorter reset hold time is acceptable | Select when system initialization completes in <25ms and tighter timing budget is required |
| MAX6337US16D3-T | Same 1.60V threshold and 100ms timeout, but open-drain RESET output instead of push/pull | Required for bidirectional µP reset pins (e.g., Motorola 68HC11) or wired-OR reset buses | Choose only if external pull-up is acceptable and shared reset bus architecture is used |
Compared with MAX6336US16D2-T and MAX6337US16D3-T, the MAX6336US16D3-T uniquely delivers 100ms hold time with push/pull drive-enabling robust reset assurance in slow-starting peripherals without external components or timing compromises.
Availability
MAX6336US16D3-T is available at Aetrix Electronics and suitable for industrial PLC controllers, automotive body control modules, and portable medical monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6336US16D3-T 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 industrial, automotive, communications, and computing applications.
The MAX6335/MAX6336/MAX6337 family delivers ultra-low-voltage, low-power µP supervisory functions targeting space-constrained, battery-sensitive, and high-reliability embedded systems requiring guaranteed reset behavior down to 0.7V.
FAQ
What is the exact reset threshold voltage of MAX6336US16D3-T and how tightly is it specified?
The MAX6336US16D3-T has a factory-trimmed nominal reset threshold of 1.60V, with ±1.8% variation at +25°C and ±3% over the full –40°C to +125°C operating range. This tight tolerance eliminates need for external adjustment and ensures consistent brownout detection across temperature extremes in critical applications like automotive ECUs and industrial controllers.
Does MAX6336US16D3-T support operation during deep brownout conditions?
Yes, MAX6336US16D3-T is guaranteed to maintain correct reset state down to VCC = 0.7V - enabling reliable assertion of the active-low RESET signal even as the supply collapses below typical logic thresholds. This capability is essential for safe shutdown and data retention in battery-powered and automotive systems where supply voltage may dip below 1.0V during cranking or fault conditions.
What is the function of the MR pin on MAX6336US16D3-T and does it require external components?
The MR pin on MAX6336US16D3-T is a debounced, logic-low active manual reset input with an internal 20kΩ pull-up resistor. It requires only a normally open momentary switch connected between MR and GND - no external capacitors, resistors, or Schmitt triggers are needed. This simplifies front-panel reset implementation and improves noise immunity in industrial and medical equipment.
How does the 100ms reset timeout of MAX6336US16D3-T benefit system reliability?
The guaranteed ≥100ms reset timeout of MAX6336US16D3-T ensures the microprocessor and all dependent peripherals (e.g., flash memory, ADCs, communication interfaces) have sufficient time to fully initialize and stabilize before release. This prevents race conditions, configuration errors, and undefined states that could occur with shorter timeouts - directly enhancing boot reliability in complex embedded systems.
Is MAX6336US16D3-T pin-compatible with legacy supervisory ICs?
Yes, MAX6336US16D3-T is pin-compatible with MAX811/MAX812 and MAX6314/MAX6315 in the 4-pin SOT143 package. This allows direct PCB replacement in existing designs without layout changes, preserving mechanical fit, thermal performance, and qualification status - accelerating redesign cycles for obsolescence mitigation or performance upgrades.
MAX6336US16D3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.6V
- 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-143-4
MAX6336US16D3-T FAQ
1.How can I place an order for MAX6336US16D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US16D3-T 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 MAX6336US16D3-T reliable?
The price and inventory of MAX6336US16D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US16D3-T is usually 5 days.
3.What payment methods are accepted for MAX6336US16D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US16D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US16D3-T?
MAX6336US16D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US16D3-T 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 MAX6336US16D3-T?
For technical support, including MAX6336US16D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US16D3-T requirements.
6.How does Aetrix verify that MAX6336US16D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6336US16D3-T 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 MAX6336US16D3-T meets industry standards.
7.What is the process for return or replacement of MAX6336US16D3-T?
All MAX6336US16D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US16D3-T, 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 MAX6336US16D3-T part is unused and in its original packaging.
Return procedure for MAX6336US16D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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