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Analog Devices Inc./Maxim Integrated MAX6467XS33D3+T
- Part No.:
- MAX6467XS33D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6467XS33D3+T.pdf
- Description:
- IC MPU/RESET CIRC 3.30V SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:40,000
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Product details
Overview
MAX6467XS33D3+T from Analog Devices is a precision microprocessor supervisory reset circuit in SC70-4 package, monitoring +3.3V supply with factory-trimmed 3.300V reset threshold (±1.5% at +25°C), 150ms minimum reset timeout, active-low open-drain RESET output, and edge-triggered manual reset input. It ensures reliable µP reset during power-up, brownout, and transient events in automotive and industrial embedded systems.
For engineers reviewing the MAX6467XS33D3+T datasheet, MAX6467XS33D3+T pinout, MAX6467XS33D3+T application, or MAX6467XS33D3+T equivalent, key selection criteria include its -40°C to +125°C automotive qualification, VCC operation down to +1.0V, 3µA supply current at +1.8V, immunity to <100ns MR glitches, and compatibility with TTL/CMOS logic levels on MR.
Technical Context
The MAX6467XS33D3+T implements a precision bandgap-based voltage reference for reset threshold detection, with temperature-compensated hysteresis ensuring stable trip points across -40°C to +125°C. Its internal one-shot timer generates fixed 150ms–300ms reset pulses on both VCC dropout and MR falling edges.
It features an integrated 1.5kΩ pullup resistor on MR, eliminating external components for pushbutton interface, and guarantees RESET validity down to VCC = +1V-enabling robust reset assertion even during deep brownout conditions before full power collapse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.300V ±1.5% at +25°C; monitors +3.3V supply with guaranteed accuracy over full automotive temperature range |
| Reset Timeout Period | 150ms (min) / 300ms (max); ensures sufficient µP reset hold time for ARM Cortex-M and similar MCUs |
| Supply Current | 3µA at VCC = +1.8V; enables ultra-low-power operation in battery-backed systems |
| Operating Voltage Range | +1.0V to +5.5V; supports valid RESET assertion down to near-dead-battery conditions |
| MR Glitch Rejection | 100ns; rejects contact bounce and EMI-induced noise on manual reset line |
| MR Pullup Resistance | 1.56kΩ typical; allows direct connection of momentary switch to GND without external resistor |
| RESET Output Type | Active-low open-drain; requires external pullup for system-level logic compatibility |
Pinout & Package
Package: 4-pin SC70-4 (X4+1 outline), footprint-compatible with industry-standard 1.3mm × 1.3mm space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and RESET output sink path |
| 2 | RESET | Active-low open-drain output; requires external pullup to system VDD for proper logic level translation |
| 3 | MR | Edge-triggered manual reset input; falling edge initiates fixed 150ms one-shot reset pulse |
| 4 | VCC | Power supply input and monitored voltage rail; bypass with 0.1µF capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-set 3.300V threshold | Eliminates external resistor divider and calibration, reducing BOM count and layout area |
| Edge-triggered MR with one-shot timing | Prevents repeated resets from switch bounce; ensures single deterministic reset pulse per button press |
| 150ms minimum reset timeout | Meets JEDEC JESD78 requirement for minimum reset assertion time in modern µPs |
| VCC operation down to +1.0V | Guarantees valid RESET signal during deep brownout, enabling safe state retention before power loss |
| AEC-Q100 qualified (-40°C to +125°C) | Validated for automotive engine control, ADAS, and infotainment applications requiring extended temperature reliability |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in diesel engine ECU exposed to wide thermal cycling and load dump transients. IC Role / Device Role / Timing Role: Supervisory reset generator asserting active-low RESET to ARM Cortex-R5 core during brownout or ignition cycle transitions. Use Value: Prevents firmware corruption by guaranteeing ≥150ms reset hold time after VCC recovers above 3.300V, meeting ISO 16750-2 pulse 4a requirements. | Use Scenario: Embedded in DIN-rail mounted PLC module powering fieldbus interfaces and analog input circuits. IC Role / Device Role / Timing Role: Primary power-on and brownout detector for dual-core RISC-V SoC managing real-time I/O scanning. Use Value: Enables fail-safe shutdown via open-drain RESET tied to FPGA configuration reset, with immunity to 100ns noise spikes on 24V DC-fed PCB. |
| Medical Patient Monitor Battery Backup | DSL Modem Power Sequencing |
Use Scenario: Maintains safe state in portable ECG monitor during Li-ion battery discharge from 4.2V to 2.8V, where 3.3V LDO output must be supervised. IC Role / Device Role / Timing Role: Low-quiescent-current supervisor ensuring µC enters reset before RAM data loss at VCC < 3.3V. Use Value: 3µA supply current extends backup runtime; RESET remains valid down to VCC = +1.0V, allowing graceful shutdown sequence initiation. | Use Scenario: Controls power-up sequencing of ADSL PHY and MIPS-based host processor in residential DSL modem. IC Role / Device Role / Timing Role: Reset coordinator asserting synchronized RESET to both ICs after 3.3V rail stabilizes post-POR. Use Value: Factory-trimmed 3.300V threshold eliminates tolerance stack-up errors; 150ms timeout aligns with PHY lock time specifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US33D3+T | Same SC70-4 package, identical 3.300V threshold and 150ms timeout, but push-pull RESET output (no external pullup required) | Preferred where board space permits no external resistor and system logic requires driven high-state during normal operation | Select when open-drain flexibility is unnecessary and lower system-level component count is prioritized |
| TLV809E33DBZR | 3.3V threshold, 140ms min timeout, SOT-23-3 package, 0.5µA supply current, but no manual reset input | Suitable only for basic power-on reset; lacks MR functionality required for field service or test mode entry | Choose only if manual reset capability is not needed and ultra-low ICC (<1µA) is critical for energy harvesting designs |
Compared with MAX6467XS33D3+T, MAX6315US33D3+T offers push-pull drive for simplified interfacing but removes open-drain flexibility, while TLV809E33DBZR reduces quiescent current by 83% but omits MR entirely-making it unsuitable for applications requiring operator-initiated reset.
Availability
MAX6467XS33D3+T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC modules, medical patient monitors, and DSL modems requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.
Supply support for MAX6467XS33D3+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6467/MAX6468 product line delivers precision, low-power, automotive-grade supervisory circuits optimized for reliable reset generation in harsh environments with minimal external components.
FAQ
What is the exact reset threshold voltage for MAX6467XS33D3+T and how tightly is it specified?
The MAX6467XS33D3+T has a factory-trimmed reset threshold of 3.300V, specified as ±1.5% at +25°C and ±2.5% over -40°C to +85°C. This precision eliminates need for external resistor networks and ensures accurate supervision of standard +3.3V rails across automotive and industrial temperature ranges. The MAX6467XS33D3+T maintains this accuracy without calibration.
Does MAX6467XS33D3+T support manual reset functionality, and how does its edge-triggered design work?
Yes, MAX6467XS33D3+T features an edge-triggered manual reset (MR) input that responds only to the first falling edge, generating a fixed 150ms–300ms one-shot RESET pulse regardless of MR duration. Internal debounce ignores subsequent edges within 150ms of MR rising, preventing false triggers from switch bounce. The MAX6467XS33D3+T includes a 1.56kΩ internal MR pullup, enabling direct pushbutton-to-GND connection.
What package type and footprint does MAX6467XS33D3+T use, and is it RoHS-compliant?
MAX6467XS33D3+T uses the 4-pin SC70-4 package (outline X4+1), measuring 1.3mm × 1.3mm with 0.65mm pitch-ideal for space-constrained automotive and portable designs. The "+T" suffix confirms lead(Pb)-free/RoHS-compliant construction, and the device is qualified to AEC-Q100 Grade 1 standards for -40°C to +125°C operation. The MAX6467XS33D3+T footprint matches standard SC70 land patterns.
How low can VCC go while still guaranteeing valid RESET output from MAX6467XS33D3+T?
MAX6467XS33D3+T guarantees valid RESET output down to VCC = +1.0V, meaning the open-drain RESET pin remains functional and correctly asserts low even as supply voltage collapses-critical for initiating controlled shutdown before complete power loss. This specification is tested and guaranteed across temperature. The MAX6467XS33D3+T does not require external circuitry to maintain RESET integrity below +1.8V.
What is the supply current consumption of MAX6467XS33D3+T at different VCC levels?
MAX6467XS33D3+T draws only 3µA at VCC = +1.8V, 4µA at +2.5V, 6µA at +3.6V, and 7µA at +5.5V-enabling multi-year battery life in always-on monitoring systems. These values are measured across temperature and represent typical operation with no load on RESET. The MAX6467XS33D3+T achieves this ultra-low ICC without sacrificing reset accuracy or timing stability.
MAX6467XS33D3+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.3V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6467XS33D3+T FAQ
1.How can I place an order for MAX6467XS33D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6467XS33D3+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 MAX6467XS33D3+T reliable?
The price and inventory of MAX6467XS33D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6467XS33D3+T is usually 5 days.
3.What payment methods are accepted for MAX6467XS33D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6467XS33D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6467XS33D3+T?
MAX6467XS33D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6467XS33D3+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 MAX6467XS33D3+T?
For technical support, including MAX6467XS33D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6467XS33D3+T requirements.
6.How does Aetrix verify that MAX6467XS33D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6467XS33D3+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 MAX6467XS33D3+T meets industry standards.
7.What is the process for return or replacement of MAX6467XS33D3+T?
All MAX6467XS33D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6467XS33D3+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 MAX6467XS33D3+T part is unused and in its original packaging.
Return procedure for MAX6467XS33D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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