My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6336US22D2+
- Part No.:
- MAX6336US22D2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6336US22D2+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,595
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6336US22D2+ 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 2.20V reset threshold (±3% over temperature), asserts reset for ≥20ms after power-up or manual reset, and operates down to 0.7V supply while consuming only 3.3µA at 2.5V - used in portable equipment and critical µP power monitoring.
For engineers reviewing the MAX6336US22D2+ datasheet, MAX6336US22D2+ pinout, MAX6336US22D2+ application, or MAX6336US22D2+ equivalent, key selection criteria include guaranteed RESET validity to VCC = 0.7V, debounced manual-reset input with internal 20kΩ pull-up, SOT143-4 package compatibility, and precise 2.2V threshold tolerance across -40°C to +125°C.
Technical Context
The MAX6336US22D2+ implements a precision bandgap-based reset comparator with factory-trimmed 2.20V threshold (±1.8% at +25°C, ±3% over full temperature range) and built-in immunity to fast VCC transients (<24µs propagation delay on VCC fall). Its push/pull output drives low actively and high actively without external pull-up, supporting direct interface to µP reset inputs requiring asserted logic levels.
It integrates a debounced manual-reset input (MR) with 160µs minimum pulse width requirement and 12ns MR glitch immunity, eliminating external RC debounce components. The device guarantees correct reset state down to VCC = 0.7V and features three factory-programmable timeout options - this part uses the D2 suffix denoting ≥20ms nominal reset active period.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.20V ±1.8% (25°C), ±3% (-40°C to +125°C) - ensures reliable brownout detection for 2.5V/1.8V rails |
| Reset Timeout Period | ≥20ms - holds µP in reset long enough for stable power and clock startup |
| Supply Voltage Range | 0.7V to 5.5V - supports ultra-low-voltage operation during battery depletion or cold start |
| Supply Current | 3.3µA (typ) at VCC = 2.5V - enables multi-year battery life in portable instrumentation |
| Output Type | Push/pull active-low RESET - eliminates need for external pull-up resistor and reduces BOM count |
| MR Input | Debounced with 20kΩ internal pull-up - allows direct connection of momentary switch to GND without external components |
| Operating Temperature | -40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
MAX6336US22D2+ is housed in a 4-pin SOT143 package (JEDEC TO-236AB), measuring 2.9mm × 1.3mm × 1.0mm, with gull-wing leads and lead-free (RoHS-compliant) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for all internal circuitry and RESET output sink current |
| 2 - RESET | Active-low push/pull reset output | Drives low during VCC undervoltage or MR assertion; actively pulls high after timeout - no external pull-up required |
| 3 - MR | Manual reset input | Logic-low assertion triggers reset; internally pulled up to VCC (20kΩ); accepts momentary switch to GND |
| 4 - VCC | Power supply input | Supplies internal regulator, comparator, and output stage; functional down to 0.7V |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.7V operating supply | Enables valid reset assertion even during deep battery discharge or cold-start conditions |
| Factory-trimmed 2.20V reset threshold | Eliminates external resistor network calibration and improves system-level voltage margin accuracy |
| 20ms minimum reset timeout | Guarantees sufficient hold time for 32kHz crystal oscillators and flash memory initialization sequences |
| Debounced MR input with internal pull-up | Reduces PCB footprint and component count by removing external RC filter and pull-up resistor |
| VCC transient immunity | Rejects <24µs negative glitches up to 100mV overdrive - prevents spurious resets in noisy power environments |
Applications
| Portable Medical Sensors | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Battery-powered glucose meters and pulse oximeters operating from single Li-ion cells with wide VCC swing (4.2V → 2.8V). IC Role / Device Role / Timing Role: Monitors VCC decay to trigger controlled shutdown before data corruption occurs; provides clean reset on wake-up. Use Value: 0.7V operational floor ensures reset remains valid through end-of-battery discharge; 3.3µA ICC extends usable battery life by >15% versus higher-current supervisors. |
Use Scenario: Under-dash electronic control units exposed to -40°C cold cranking and +125°C engine bay ambient. IC Role / Device Role / Timing Role: Supervises 2.5V microcontroller supply during ignition transients and load-dump events. Use Value: ±3% threshold stability over full temperature range prevents false resets during thermal cycling; SOT143 package withstands automotive vibration standards. |
| Industrial PLC I/O Modules | Smart Energy Meters |
|
Use Scenario: DIN-rail mounted programmable logic controllers with isolated 3.3V logic rails powered from wide-input DC-DC converters. IC Role / Device Role / Timing Role: Detects brownout on 3.3V rail caused by input ripple or converter fault; asserts reset before firmware executes corrupted instructions. Use Value: 2.20V threshold matches typical 3.3V rail dropout margin; push/pull output ensures robust drive into optocoupler input without pull-up loading. |
Use Scenario: Revenue-grade electricity meters with tamper-detection logic requiring deterministic power-on reset sequencing. IC Role / Device Role / Timing Role: Generates ≥20ms reset pulse synchronized to AC line zero-crossing startup timing. Use Value: Factory-programmed D2 timeout eliminates need for external timing capacitor; 20kΩ MR pull-up supports remote reset via isolated GPIO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6314US22D2+ | Same 2.20V threshold and 20ms timeout, but open-drain RESET output requiring external pull-up | Limited to systems where bidirectional reset pins or wired-OR logic are required | Select when interfacing with µPs like Motorola 68HC11 that mandate open-drain reset signaling |
| TPS3124E18DBVR | 2.16V threshold (±0.5%), 200ms fixed timeout, 1.2µA ICC, SOT-23-5 package | Higher accuracy threshold but longer timeout; not suitable for fast-boot applications | Prefer for ultra-low-power metering where extended reset hold time improves EEPROM write integrity |
Compared with MAX6336US22D2+, MAX6314US22D2+ requires external pull-up and lacks guaranteed 0.7V operation, while TPS3124E18DBVR offers tighter threshold tolerance but doubles reset duration - MAX6336US22D2+ balances low-voltage robustness, timing precision, and BOM simplicity for cost-sensitive industrial designs.
Availability
MAX6336US22D2+ is available at Aetrix Electronics and suitable for portable medical sensors, automotive body control modules, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6336US22D2+ 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 analog, mixed-signal, and power management ICs for industrial, automotive, and computing applications.
The MAX633x family delivers ultra-low-voltage, low-power µP supervisory circuits targeting space-constrained and battery-operated systems where reliability, precision, and minimal external components are critical.
FAQ
What is the factory-trimmed reset threshold voltage for MAX6336US22D2+?
The MAX6336US22D2+ has a factory-trimmed reset threshold of 2.20V, with ±1.8% tolerance at +25°C and ±3% over the full -40°C to +125°C operating range. This value is confirmed in Table 1 of the datasheet and corresponds to the "US22" suffix in the part number. The threshold is set using laser trimming during wafer sort and does not require external calibration.
Does MAX6336US22D2+ require an external pull-up resistor on the RESET pin?
No, MAX6336US22D2+ does not require an external pull-up resistor because it features a push/pull output stage. The RESET pin actively drives high when deasserted, eliminating reliance on external components. This is explicitly stated in the Pin Description and Applications Information sections, distinguishing it from open-drain variants like MAX6337.
What is the minimum supply voltage at which MAX6336US22D2+ guarantees correct reset behavior?
MAX6336US22D2+ guarantees correct reset assertion and deassertion down to VCC = 0.7V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. This ultra-low operating voltage enables reliable operation during battery depletion or cold-start conditions where other supervisors fail.
How is the 20ms reset timeout period implemented in MAX6336US22D2+?
The 20ms nominal reset timeout period in MAX6336US22D2+ is factory-programmed via the "D2" suffix and implemented using an internal RC oscillator with temperature compensation. The datasheet specifies tRP ≥20ms (typical 30ms, max 40ms) after VCC rises above threshold or MR is released, ensuring consistent timing without external capacitors.
Is MAX6336US22D2+ pin-compatible with older Maxim supervisors like MAX811?
Yes, MAX6336US22D2+ is pin-compatible with MAX811/MAX812 and MAX6314/MAX6315 in the SOT143-4 package, as confirmed in the Features section. Pin 1 (GND), Pin 2 (RESET), Pin 3 (MR), and Pin 4 (VCC) match functionally and physically - enabling drop-in replacement in existing layouts without PCB revision.
MAX6336US22D2+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.2V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143-4
MAX6336US22D2+ FAQ
1.How can I place an order for MAX6336US22D2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6336US22D2+ 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 MAX6336US22D2+ reliable?
The price and inventory of MAX6336US22D2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6336US22D2+ is usually 5 days.
3.What payment methods are accepted for MAX6336US22D2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6336US22D2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6336US22D2+?
MAX6336US22D2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6336US22D2+ 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 MAX6336US22D2+?
For technical support, including MAX6336US22D2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6336US22D2+ requirements.
6.How does Aetrix verify that MAX6336US22D2+ is sourced from the original manufacturer or authorized distributors?
All MAX6336US22D2+ 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 MAX6336US22D2+ meets industry standards.
7.What is the process for return or replacement of MAX6336US22D2+?
All MAX6336US22D2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6336US22D2+, 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 MAX6336US22D2+ part is unused and in its original packaging.
Return procedure for MAX6336US22D2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6336US22D2+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
