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Analog Devices Inc./Maxim Integrated MAX6336US23D3+T
- Part No.:
- MAX6336US23D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US23D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,442
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Product details
Overview
MAX6336US23D3+T from Maxim Integrated is a push/pull, active-low microprocessor supervisory circuit designed for 1.8V–3.3V digital systems. It monitors VCC supply voltage with a factory-trimmed 2.30V reset threshold, asserts RESET for ≥100ms after power-up or manual reset, operates down to 0.7V VCC, draws only 3.3µA at 2.5V, and features debounced manual-reset input - used in portable equipment, controllers, and critical µP power monitoring.
For engineers reviewing the MAX6336US23D3+T datasheet, MAX6336US23D3+T pinout, MAX6336US23D3+T application, or MAX6336US23D3+T equivalent, key selection criteria include guaranteed RESET validity to 0.7V VCC, 100ms minimum timeout, SOT143 package compatibility, and push/pull output drive capability for direct interface with µP reset inputs without external pull-up.
Technical Context
The MAX6336US23D3+T 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 MR pull-up resistor (20kΩ) enables momentary switch interfacing without external components.
Reset assertion is triggered by VCC falling below 2.30V or MR pulled low; deassertion occurs only after VCC rises above threshold and a fixed 100ms timeout expires. The push/pull output drives high (≥0.8VCC at ISOURCE = 200µA, VCC ≥1.8V) and low (≤0.4V at ISINK = 50µA, VCC ≥1.0V), ensuring robust logic-level compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.30V (factory-trimmed, ±1.8% @ 25°C); ensures reliable brownout detection for 2.5V systems |
| Reset Timeout Period | 100ms minimum; guarantees sufficient hold time for µP initialization sequences |
| Supply Voltage Range | 0.7V to 5.5V; supports ultra-low-voltage operation during battery depletion or cold-start |
| Supply Current | 3.3µA typical at VCC = 2.5V; enables multi-year battery life in portable applications |
| Output Type | Active-low push/pull; eliminates need for external pull-up resistor and simplifies µP interface |
| MR Input Threshold | 0.42V typical; compatible with TTL/CMOS logic levels and tolerant of noise on manual-reset line |
| Operating Temperature | -40°C to +125°C; qualified for automotive under-hood and industrial control environments |
Pinout & Package
MAX6336US23D3+T is housed in a 4-pin SOT143 surface-mount package (3.0mm × 1.6mm × 0.9mm), 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 - fully compatible with MAX811/MAX812 and MAX6314/MAX6315 footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC | Positive supply input | Accepts 0.7V–5.5V; powers internal comparator and output stage; valid reset assertion guaranteed down to 0.7V |
| 2 - RESET | Active-low reset output | Push/pull driver sinks ≤0.4V @ 50µA and sources ≥0.8VCC @ 200µA; directly interfaces µP reset pins |
| 3 - MR | Manual reset input | Logic-low assertion triggers reset; internal 20kΩ pull-up allows NC or VCC tie-off; debounced internally |
| 4 - GND | Ground reference | Return path for VCC, RESET, and MR; must be low-impedance connection to maintain reset accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low operating voltage | Functional reset assertion guaranteed down to VCC = 0.7V - essential for battery-powered brownout recovery |
| Factory-trimmed precision threshold | 2.30V ±1.8% (25°C); eliminates calibration components and improves system reliability over temperature |
| Integrated MR debounce | No external RC network required; internal timing rejects <160µs glitches on MR line |
| Transient-immune comparator | Rejects VCC glitches ≤24µs at 10V/ms; prevents false resets during switching noise or ESD events |
| SOT143 footprint compatibility | Pins match MAX811/MAX812 and MAX6314/MAX6315 - enables drop-in replacement in existing designs |
Applications
| Portable Battery-Powered Equipment | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Handheld medical devices powered by single-cell Li-ion batteries experiencing voltage sag during peak current draw. IC Role / Device Role / Timing Role: Monitors VCC and asserts RESET when battery drops below 2.30V, holding reset for ≥100ms to prevent erratic µP operation during recovery. Use Value: Prevents firmware corruption and data loss during brownout, extending usable battery range without adding external supervision circuitry. |
Use Scenario: Under-dash control units exposed to wide temperature swings (-40°C to +125°C) and load-dump transients. IC Role / Device Role / Timing Role: Provides temperature-stable reset generation with ±3% threshold tolerance and glitch immunity against 12V rail disturbances. Use Value: Ensures deterministic µP startup after ignition cycles and maintains functional safety compliance without derating. |
| Industrial Programmable Logic Controllers | Intelligent Power Meters |
|
Use Scenario: PLC I/O modules requiring fail-safe reset during AC/DC converter brownouts or EMI-induced supply dips. IC Role / Device Role / Timing Role: Acts as primary power-on and brownout detector; MR pin enables remote reset via isolated optocoupler interface. Use Value: Eliminates need for discrete comparator + timer circuits, reducing BOM count and board area while improving MTBF. |
Use Scenario: Revenue-grade meters with tamper-detection logic that must retain state integrity during brief AC mains interruptions. IC Role / Device Role / Timing Role: Generates clean, jitter-free reset pulse with 100ms hold time to allow secure boot sequence and cryptographic key reinitialization. Use Value: Meets IEC 62053-21 requirements for reset timing consistency across voltage and temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX811SUR23+T | Same SOT143 package, 2.32V threshold, 140ms timeout, 3.5µA ICC - slightly higher threshold and longer timeout | Designed for general-purpose 3.3V systems; lacks MR debounce and transient immunity specs of MAX6336 | Select when longer reset hold time is preferred and MR functionality is unused |
| TLV803EB23DBZR | 2.32V threshold, 200ms timeout, 0.5µA ICC, SOT23-3 - lower quiescent current but no MR input or push/pull drive | Targeted at ultra-low-power always-on monitoring; requires external MR circuitry and pull-up for active-low output | Select for battery-critical applications where MR is unnecessary and board space permits SOT23-3 |
Compared with MAX811SUR23+T and TLV803EB23DBZR, the MAX6336US23D3+T uniquely combines MR debounce, 0.7V operation, push/pull drive, and 100ms timeout in a pin-compatible SOT143 package - making it optimal for space-constrained, manually resettable, low-voltage embedded systems.
Availability
MAX6336US23D3+T is available at Aetrix Electronics and suitable for portable equipment, automotive body electronics, and industrial controllers requiring stable component supply, long-term lifecycle support, and lead-free compliance.
Supply support for MAX6336US23D3+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX633x family was engineered specifically for ultra-low-voltage microprocessor supervision in battery-powered and harsh-environment applications - delivering precision reset control with minimal external components.
FAQ
What is the factory-trimmed reset threshold voltage for MAX6336US23D3+T?
The MAX6336US23D3+T has a factory-trimmed reset threshold of 2.30V, with ±1.8% tolerance at +25°C and ±3% over the full -40°C to +125°C operating range. This value is laser-trimmed during production and specified in Table 1 of the datasheet; it ensures accurate brownout detection for 2.5V systems without external calibration. The MAX6336US23D3+T maintains this threshold stability across temperature and supply variations.
Does MAX6336US23D3+T support manual reset functionality, and how is it implemented?
Yes, MAX6336US23D3+T includes a debounced manual-reset (MR) input on Pin 3. A logic-low signal on MR asserts RESET immediately, and RESET remains asserted for the full 100ms timeout after MR returns high. An internal 20kΩ pull-up resistor allows MR to be left unconnected or tied to VCC when unused. No external RC network is needed - the MAX6336US23D3+T handles all timing and noise rejection internally.
What is the minimum supply voltage at which MAX6336US23D3+T guarantees correct RESET output behavior?
The MAX6336US23D3+T guarantees correct RESET output behavior down to VCC = 0.7V - meaning RESET remains valid (low when asserted, high when deasserted) even as the supply collapses. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables, and distinguishes the MAX6336US23D3+T from alternatives like the MAX6337 (1.0V min). Operation below 0.7V is not specified.
Is MAX6336US23D3+T pin-compatible with other supervisory ICs, and which ones?
Yes, MAX6336US23D3+T uses the standard 4-pin SOT143 package and shares identical pinout with MAX811/MAX812 and MAX6314/MAX6315 - enabling drop-in replacement in legacy designs. Pin 1 = VCC, Pin 2 = RESET, Pin 3 = MR, Pin 4 = GND. This compatibility is explicitly stated in the datasheet's "Pin Compatible" feature bullet and Selector Guide, confirming mechanical and electrical interchangeability without PCB modification.
What is the typical supply current consumption of MAX6336US23D3+T at 2.5V and room temperature?
The typical supply current (ICC) of MAX6336US23D3+T is 3.3µA at VCC = 2.5V and TA = +25°C, with a maximum of 7.0µA over the full -40°C to +125°C range. This ultra-low quiescent current is measured with RESET not asserted and no load on MR or RESET pins. The low ICC directly enables multi-year operation in coin-cell–powered devices - a core design goal reflected in the MAX6336US23D3+T's "Ultra-Low 0.7V Operating Supply Voltage" feature.
MAX6336US23D3+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:
- 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-143-4
MAX6336US23D3+T FAQ
1.How can I place an order for MAX6336US23D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US23D3+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 MAX6336US23D3+T reliable?
The price and inventory of MAX6336US23D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US23D3+T is usually 5 days.
3.What payment methods are accepted for MAX6336US23D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US23D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US23D3+T?
MAX6336US23D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US23D3+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 MAX6336US23D3+T?
For technical support, including MAX6336US23D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US23D3+T requirements.
6.How does Aetrix verify that MAX6336US23D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6336US23D3+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 MAX6336US23D3+T meets industry standards.
7.What is the process for return or replacement of MAX6336US23D3+T?
All MAX6336US23D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US23D3+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 MAX6336US23D3+T part is unused and in its original packaging.
Return procedure for MAX6336US23D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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