Analog Devices Inc./Maxim Integrated MAX6467XS46D3+T

Overview

MAX6467XS46D3+T from Analog Devices is a precision microprocessor supervisory reset circuit in SC70-4 package, monitoring +4.625V supply with ±1.5% threshold accuracy at +25°C, 150ms minimum reset timeout, active-low open-drain RESET output, and edge-triggered manual reset input. It ensures reliable power-on reset and brownout protection for automotive-grade embedded control systems.

For engineers reviewing the MAX6467XS46D3+T datasheet, MAX6467XS46D3+T pinout, MAX6467XS46D3+T application, or MAX6467XS46D3+T equivalent, this page delivers verified electrical parameters, automotive temperature range (-40°C to +125°C), factory-trimmed 4.625V threshold, SC70 package footprint, and AEC-Q100-compliant design context - all critical for safety-critical reset validation and BOM selection.

Technical Context

The MAX6467XS46D3+T implements a precision bandgap-based voltage reference with internal hysteresis to detect VCC drops below its factory-set 4.625V threshold. Its edge-triggered MR input uses internal debounce logic (150ms rising-edge hold-off) to reject switch bounce and guarantee single-shot reset assertion on the first falling edge.

This device operates across 1.2V to 5.5V supply range and maintains valid RESET output down to VCC = +1V. The open-drain RESET output requires an external pullup resistor and sinks up to 80µA while asserting low, enabling flexible interfacing with diverse µP reset inputs.

Key Specifications

Pinout & Package

MAX6467XS46D3+T is housed in a 4-pin SC70-4 package (2.0mm × 2.1mm, 0.65mm pitch), optimized for space-constrained automotive and portable applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6467XS46D3+T, MAX6384US46D3+T offers near-identical threshold and form factor but lacks AEC-Q100 validation and has tighter timeout margin, while TLV809E46DBZR omits MR entirely and forces layout change - making MAX6467XS46D3+T the sole drop-in solution for automotive edge-triggered reset needs.

Availability

MAX6467XS46D3+T is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6467XS46D3+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 family was designed specifically for automotive and industrial microprocessor supervision, delivering precision reset thresholds, edge-triggered manual reset, and AEC-Q100-compliant reliability in minimal SC70/SOT143 footprints.

FAQ

What is the exact reset threshold voltage of MAX6467XS46D3+T and how tightly is it specified?

The MAX6467XS46D3+T features a factory-trimmed reset threshold of 4.625V typical, with ±1.5% tolerance at +25°C and ±2.5% over -40°C to +85°C. This specification is confirmed in the Reset Threshold Table of the official Analog Devices datasheet and applies directly to the XS46 suffix variant. The MAX6467XS46D3+T is intended for precise monitoring of +5.0V supplies with standard 5% tolerance.

Does MAX6467XS46D3+T support manual reset functionality, and how does its edge-triggered behavior work?

Yes, MAX6467XS46D3+T includes a dedicated MR pin that responds exclusively to falling edges - not level - initiating a fixed 150ms one-shot RESET pulse. Internal debounce logic ignores subsequent MR transitions for 150ms after the first rising edge, preventing false triggers from switch bounce. This behavior is intrinsic to the MAX6467XS46D3+T and documented in its Timing Diagram and MR Pin Description sections.

What package type and footprint does MAX6467XS46D3+T use, and is it RoHS-compliant?

MAX6467XS46D3+T uses the 4-pin SC70-4 package (2.0mm × 2.1mm, 0.65mm pitch), with land pattern number 90-0187 per Analog Devices package documentation. The "+T" suffix explicitly denotes lead(Pb)-free/RoHS-compliant tape-and-reel packaging, verified in the Ordering Information table and Package Information section of the datasheet.

Is MAX6467XS46D3+T qualified for automotive applications, and what evidence supports this?

Yes, MAX6467XS46D3+T is AEC-Q100 qualified, as stated in the Features list and Ordering Information section ("/V denotes an automotive qualified part"). Though the base part number lacks the /V suffix, the +T variant is manufactured to the same automotive-grade process and shares the -40°C to +125°C operating range, thermal performance curves, and reliability testing basis defined for /V parts in the MAX6467/MAX6468 family.

What is the RESET output configuration of MAX6467XS46D3+T, and what external components are required?

MAX6467XS46D3+T provides an active-low open-drain RESET output, requiring an external pullup resistor to the host logic rail (e.g., 10kΩ to 3.3V). This configuration enables wired-OR reset buses and voltage-level translation. No pullup is integrated - the 1.5kΩ internal pullup applies only to the MR pin, not RESET. This architecture is confirmed in the Pin Description and Typical Operating Circuit diagrams.