Analog Devices Inc./Maxim Integrated MAX6467XS32D3/V+T

Overview

The MAX6467XS32D3/V+T from Analog Devices is a precision microprocessor supervisory reset circuit in SC70-4 package, monitoring +3.2V supply with ±2.5% threshold accuracy over -40°C to +125°C, asserting active-low open-drain RESET for 150ms min after VCC drop or MR edge trigger, and consuming only 3µA at 1.8V - used in automotive infotainment power sequencing.

For engineers reviewing the MAX6467XS32D3/V+T datasheet, MAX6467XS32D3/V+T pinout, MAX6467XS32D3/V+T application, or MAX6467XS32D3/V+T equivalent, key selection criteria include factory-trimmed 3.2V reset threshold, edge-triggered manual reset with 150ms one-shot timeout, open-drain output requiring external pullup, AEC-Q100 qualification, and operation down to VCC = +1V.

Technical Context

This device implements a precision bandgap-based voltage monitor with internal hysteresis and temperature-compensated reference, enabling stable reset assertion across automotive temperature extremes. Its edge-triggered MR input uses internal debounce logic (150ms rising-edge holdoff) to reject switch bounce and guarantee single-pulse reset generation per button press.

The open-drain RESET output supports flexible system-level pullup configurations (e.g., to different rail voltages), while the 1.5kΩ internal MR pullup resistor allows direct connection of a momentary switch to GND without external components. Reset timeout is fixed at 150ms min (D3 suffix) and independent of VCC level within operating range.

Key Specifications

Pinout & Package

Package: 4-pin SC70-4 (2.0mm × 2.1mm × 0.9mm), lead(Pb)-free/RoHS-compliant, tape-and-reel delivery.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor supervisory reset applications.

Compared with MAX6467XS32D3/V+T, MAX6384US32D3/V+T offers push-pull output convenience at the expense of wired-OR flexibility, while TLV803EB32DBZR reduces size and current but sacrifices MR functionality and automotive reliability validation.

Availability

MAX6467XS32D3/V+T is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLCs, medical patient monitors, and telematics control units requiring stable component supply with AEC-Q100 assurance and long-term lifecycle support.

Supply support for MAX6467XS32D3/V+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 supervisory circuits optimized for automotive-grade reliability and minimal external component count in space-constrained embedded systems.

FAQ

What is the exact reset threshold voltage of the MAX6467XS32D3/V+T and how tightly is it specified?

The MAX6467XS32D3/V+T has a factory-trimmed nominal reset threshold of 3.200V, with tolerance of ±2.5% over the –40°C to +85°C temperature range and ±3% up to +125°C. This value is laser-trimmed during production and documented in the Reset Threshold table of the datasheet; the '32' suffix explicitly denotes the 3.2V variant. The MAX6467XS32D3/V+T meets AEC-Q100 Grade 0 requirements for automotive use.

Does the MAX6467XS32D3/V+T support manual reset functionality, and how does its edge-triggered behavior work?

Yes, the MAX6467XS32D3/V+T features an edge-triggered manual reset (MR) input that responds only to the falling edge of the MR signal, generating a precise one-shot 150ms RESET pulse. Internal debounce logic enforces a 150ms rising-edge holdoff period, ignoring subsequent MR transitions during that window to prevent multiple pulses from switch bounce. The MAX6467XS32D3/V+T includes a 1.5kΩ internal pullup resistor on MR, allowing direct connection to a momentary switch without external components.

What package type and footprint does the MAX6467XS32D3/V+T use, and is it RoHS-compliant?

The MAX6467XS32D3/V+T is supplied in the 4-pin SC70-4 package (2.0mm × 2.1mm × 0.9mm), with land pattern number 90-0187 and outline number 21-0098. The '+T' suffix confirms lead(Pb)-free/RoHS-compliant construction and tape-and-reel packaging. This compact footprint supports high-density automotive PCB layouts while maintaining thermal performance across –40°C to +125°C.

How does the open-drain RESET output of the MAX6467XS32D3/V+T differ from push-pull alternatives, and what design considerations apply?

The MAX6467XS32D3/V+T uses an active-low open-drain RESET output, requiring an external pullup resistor to set the high-level voltage and current drive capability. This enables wired-OR reset busing, level translation (e.g., pulling to 5V while VCC = 3.3V), and compatibility with legacy µP reset inputs. Unlike push-pull versions such as MAX6468, the MAX6467XS32D3/V+T cannot actively drive high, so pullup selection must balance rise time against power consumption and noise immunity.

Is the MAX6467XS32D3/V+T qualified for automotive applications, and what standards does it meet?

Yes, the MAX6467XS32D3/V+T carries the '/V' suffix indicating full AEC-Q100 qualification for automotive applications, including stress testing for temperature cycling, humidity, and mechanical shock. It operates across the extended –40°C to +125°C junction temperature range and is rated for use in engine control, body electronics, and ADAS subsystems. The '/V+T' designation confirms both automotive qualification and RoHS compliance per the ordering information table.