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Analog Devices Inc./Maxim Integrated MAX6467US16D3
- Part No.:
- MAX6467US16D3
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6467US16D3.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,235
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Product details
Overview
MAX6467US16D3 from Maxim Integrated is a microprocessor supervisory reset circuit in SOT143-4 package, monitoring +1.8V supply with factory-trimmed 1.575V reset threshold (±2.5% over -40°C to +85°C), 150ms minimum reset timeout, and active-low open-drain RESET output. It ensures reliable µP reset during power-up, brownout, and manual initiation in automotive and industrial embedded systems.
For engineers reviewing the MAX6467US16D3 datasheet, MAX6467US16D3 pinout, MAX6467US16D3 application, or MAX6467US16D3 equivalent, key selection criteria include its 3µA supply current at 1.8V, VCC-valid-to-1V operation, edge-triggered one-shot MR input, immunity to <100ns glitches, and compatibility with +1.8V/+2.5V/+3.0V/+3.3V/+5.0V supply rails.
Technical Context
The MAX6467US16D3 implements a precision bandgap-based voltage monitor with hysteresis-free threshold detection and internal one-shot timing for both VCC dropout and MR edge events. Its BiCMOS process enables stable operation from VCC = +1.2V to +5.5V across -40°C to +125°C.
It features an edge-sensitive MR input with 150ms rising-edge debounce and 150ms one-shot MR timeout-both independent of VCC reset timeout-and guarantees RESET assertion down to VCC = +1V, with open-drain output requiring external pullup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.575V (min), ±2.5% tolerance over -40°C to +85°C - precisely matches +1.8V supply monitoring with margin |
| Reset Timeout Period | 150ms (min) - meets minimum reset hold time for most ARM Cortex-M and PIC microcontrollers |
| Supply Current | 3µA at VCC = +1.8V - enables multi-year battery life in always-on portable equipment |
| Operating Voltage Range | +1.2V to +5.5V - supports wide-input industrial and automotive power rails |
| MR Glitch Rejection | 100ns - rejects EMI-induced noise on manual reset line without external RC filtering |
| RESET Valid Down To | VCC = +1V - maintains valid logic state during deep brownout, preventing µP lockup |
| Output Type | Active-low open-drain - allows wired-OR configuration and level translation with external pullup |
Pinout & Package
MAX6467US16D3 is housed in a 4-pin SOT143-4 surface-mount package (2.9mm × 1.5mm × 1.1mm), optimized for space-constrained automotive and portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Primary return path for internal bias and RESET sink current; must be low-impedance connection to system ground plane |
| 2 RESET | Active-low open-drain output | Asserts low on VCC drop or MR falling edge; requires external pullup resistor (typically 10kΩ–100kΩ) to host VDD |
| 3 MR | Edge-triggered manual reset input | Falling edge initiates one-shot 150ms RESET pulse; internally pulled up to VCC (1.5kΩ); immune to switch bounce |
| 4 VCC | Power and monitored supply input | Supplies device and serves as monitored rail; bypass with 0.1µF ceramic capacitor to GND for transient immunity |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-set 1.575V threshold | Eliminates external resistor divider and calibration, reducing BOM count and layout area for +1.8V systems |
| Edge-triggered MR with one-shot timing | Ensures single, deterministic reset pulse per button press-even with mechanical switch bounce or noisy control signals |
| 150ms min VCC and MR timeout | Guarantees sufficient reset hold time for modern low-power MCUs with fast wake-up sequences |
| 3µA supply current at 1.8V | Enables integration into energy-harvesting and coin-cell-powered devices without compromising runtime |
| Valid RESET down to VCC = +1V | Prevents undefined µP behavior during gradual power collapse, improving system robustness in automotive cold-crank scenarios |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
|
Use Scenario: Monitoring 1.8V core supply for CAN/LIN transceiver MCU in door module under load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Supervisory reset generator asserting active-low RESET to hold MCU in reset until stable 1.8V rail is confirmed. Use Value: Prevents spurious MCU execution during unstable VCC transients; 150ms timeout ensures full oscillator stabilization before release. |
Use Scenario: Power sequencing and fault recovery for isolated 1.8V digital I/O ASIC in modular PLC backplane. IC Role / Device Role / Timing Role: Voltage monitor and manual reset coordinator, interfacing with FPGA-configurable reset controller via open-drain bus. Use Value: Open-drain output enables shared reset bus across multiple domains; 3µA quiescent current minimizes standby power overhead. |
| Portable Medical Sensor Hub | Battery-Powered GPS Tracker |
|
Use Scenario: Ensuring clean boot of ultra-low-power ARM Cortex-M0+ sensor fusion MCU powered by buck-boost regulator outputting 1.8V. IC Role / Device Role / Timing Role: Primary brownout detector and user-initiated reset interface via tactile button connected to MR pin. Use Value: 100ns MR glitch rejection eliminates false resets from ESD events; 1.575V threshold provides 125mV noise margin above nominal 1.8V rail. |
Use Scenario: Maintaining reliable reset behavior during intermittent Li-ion cell voltage sag (<2.0V) in GPS/GSM dual-mode asset tracker. IC Role / Device Role / Timing Role: Fail-safe supervisor that asserts RESET while VCC remains below 1.575V and sustains it for 150ms after recovery. Use Value: RESET validity down to VCC = +1V prevents latch-up during deep discharge; SOT143 package fits tight PCB real estate constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6384US16D3 | Same SOT143-4 package, identical 1.575V threshold and 150ms timeout, but lacks MR debounce and has higher 10µA ICC | No built-in MR rising-edge debounce; requires external RC filter for pushbutton use | Select when MR debounce is handled externally and lower cost is prioritized over integrated noise immunity |
| TLV803EC16DBZR | 1.6V threshold (±1%), 200ms timeout, 0.5µA ICC, SOT23-3 package - no MR pin, only VCC monitoring | Manual reset capability absent; designed strictly for power-fail detection without user intervention | Select when only VCC supervision is needed and board space permits SOT23-3; not suitable for MR-driven systems |
Compared with MAX6467US16D3, MAX6384US16D3 offers identical threshold and timing but reduced noise immunity on MR, while TLV803EC16DBZR eliminates MR functionality entirely for ultra-low-power pure VCC monitoring - making MAX6467US16D3 the only choice for edge-triggered manual reset in compact +1.8V systems.
Availability
MAX6467US16D3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC modules, and portable medical sensors requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.
Supply support for MAX6467US16D3 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 high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX6467/MAX6468 family delivers precision, low-power supervisory circuits for microprocessor reset management in harsh environments - specifically engineered for automotive (-40°C to +125°C) and industrial applications where reliability under voltage transients is critical.
FAQ
What is the exact reset threshold voltage of the MAX6467US16D3?
The MAX6467US16D3 has a factory-trimmed reset threshold of 1.575V (typical), with guaranteed minimum of 1.536V and maximum of 1.614V over -40°C to +85°C. This threshold is optimized for monitoring +1.8V supplies with ±2.5% tolerance, and is specified across the full automotive temperature range (-40°C to +125°C) with ±3% variation at +125°C.
Does the MAX6467US16D3 support manual reset functionality, and how does it work?
Yes, the MAX6467US16D3 supports edge-triggered manual reset via its MR pin. A falling edge on MR initiates a one-shot 150ms (min) RESET pulse, independent of VCC status. The device includes internal 150ms rising-edge debounce to ignore switch bounce, and an internal 1.5kΩ pullup to VCC - eliminating need for external components unless long cables require added noise immunity.
What is the output type of the MAX6467US16D3, and what external components are required?
The MAX6467US16D3 features an active-low open-drain RESET output, requiring an external pullup resistor to the host supply rail (e.g., 10kΩ to 3.3V). No pullup is integrated. Unlike the push-pull MAX6468 variant, this topology enables wired-OR reset buses and level shifting - but mandates the external resistor for proper logic-high state.
How low can VCC go while still guaranteeing valid RESET output from the MAX6467US16D3?
The MAX6467US16D3 guarantees valid RESET output down to VCC = +1V. Below this, RESET behavior is unspecified. This feature ensures deterministic reset signaling during deep brownout events - critical in automotive cold-crank scenarios where battery voltage may dip to 1.0–1.2V before recovering - and prevents µP from entering undefined states.
Is the MAX6467US16D3 pin-compatible with other Maxim supervisory ICs?
Yes, the MAX6467US16D3 is pin-compatible with MAX811, MAX6315, MAX6384, and MAX6386 in the same SOT143-4 package. This allows drop-in replacement in existing layouts where those parts were used - provided the reset threshold (1.575V), timeout (150ms), and open-drain output match system requirements. Always verify timing and voltage specs before substitution.
MAX6467US16D3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- 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:
- SOT-23-4
MAX6467US16D3 FAQ
1.How can I place an order for MAX6467US16D3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6467US16D3 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 MAX6467US16D3 reliable?
The price and inventory of MAX6467US16D3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6467US16D3 is usually 5 days.
3.What payment methods are accepted for MAX6467US16D3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6467US16D3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6467US16D3?
MAX6467US16D3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6467US16D3 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 MAX6467US16D3?
For technical support, including MAX6467US16D3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6467US16D3 requirements.
6.How does Aetrix verify that MAX6467US16D3 is sourced from the original manufacturer or authorized distributors?
All MAX6467US16D3 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 MAX6467US16D3 meets industry standards.
7.What is the process for return or replacement of MAX6467US16D3?
All MAX6467US16D3 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6467US16D3, 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 MAX6467US16D3 part is unused and in its original packaging.
Return procedure for MAX6467US16D3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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