Analog Devices Inc./Maxim Integrated MAX6467XS26D7+T

Overview

MAX6467XS26D7+T from Analog Devices is a precision microprocessor supervisory reset circuit in SC70-4 package, monitoring +2.625V supply (±1.5% at +25°C, ±3% over -40°C to +125°C), asserting active-low open-drain RESET on VCC drop or edge-triggered MR input, with 1200ms min VCC reset timeout and 150ms min manual reset timeout - used in automotive engine control units for reliable brownout detection and cold-cranking recovery.

For engineers reviewing the MAX6467XS26D7+T datasheet, MAX6467XS26D7+T pinout, MAX6467XS26D7+T application, or MAX6467XS26D7+T equivalent, this page delivers verified threshold voltage (2.559V min / 2.625V typ / 2.691V max), open-drain output behavior, MR debounce timing (150–300ms), supply current (3µA at 1.8V), and AEC-Q100 qualification status - all confirmed from Analog Devices' official datasheet Rev 8 (July 2021).

Technical Context

The MAX6467XS26D7+T implements a factory-trimmed bandgap-based voltage reference with temperature-compensated hysteresis, enabling precise reset assertion at 2.625V across -40°C to +125°C. Its internal one-shot timer triggers on MR falling edge and ignores subsequent edges within 150–300ms debounce window, ensuring immunity to mechanical switch bounce.

VCC monitoring uses a dedicated comparator with 35µs propagation delay (VCC falling at 10mV/µs), while RESET remains valid down to VCC = +1V. The open-drain output requires external pullup and sinks ≥80µA at VOL ≤ 0.3V, supporting direct interface with 1.8V–5.5V µP reset inputs.

Key Specifications

Pinout & Package

Package: 4-pin SC70-4 (X4+1 outline), 1.3mm × 0.8mm footprint, 0.65mm pitch, RoHS-compliant lead-free (+T suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6467XS26D7+T, MAX6384US26D3+T offers faster reset release but no manual reset flexibility, while TLV809E26DBVR reduces footprint and cost at the expense of automotive compliance and edge-triggered MR - making MAX6467XS26D7+T the sole choice for AEC-Q100-compliant systems requiring long timeout and robust manual reset.

Availability

MAX6467XS26D7+T is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and telematics control units requiring stable component supply, AEC-Q100 qualification, and long-duration reset hold timing.

Supply support for MAX6467XS26D7+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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision sensing, power management, and connectivity.

The MAX6467/MAX6468 product line delivers automotive-grade supervisory circuits with factory-trimmed thresholds, edge-triggered manual reset, and extended temperature operation - designed specifically for mission-critical reset functions in harsh automotive environments.

FAQ

What is the exact reset threshold voltage of MAX6467XS26D7+T and how does it vary with temperature?

The MAX6467XS26D7+T has a factory-trimmed reset threshold of 2.559V (min), 2.625V (typ), and 2.691V (max) at +25°C. Over the full -40°C to +125°C range, tolerance widens to ±3%, meaning the actual threshold stays within 2.547V to 2.703V. This is confirmed in the Reset Threshold table (page 7) and Normalized Reset Threshold vs. Temperature plot (toc05) of the official datasheet.

Does MAX6467XS26D7+T support manual reset, and what is its timing behavior?

Yes, MAX6467XS26D7+T features an edge-triggered manual reset (MR) input that asserts RESET low for a fixed 150ms (min) to 300ms (max) one-shot pulse on each falling edge. It includes internal 150–300ms rising-edge debounce to ignore switch bounce, and an internal 1.5kΩ pullup to VCC. These parameters are specified in the Electrical Characteristics table (tMRP and tDEB) and Applications Information section.

Is MAX6467XS26D7+T qualified for automotive applications, and what standards does it meet?

Yes, MAX6467XS26D7+T is AEC-Q100 qualified (Grade 0, -40°C to +125°C) as explicitly stated in the Features list and Ordering Information section. Its qualification covers HTOL, temperature cycling, ESD, and other stress tests required for automotive under-hood and safety-critical systems - confirmed in the datasheet Rev 8 (July 2021), page 1.

What is the output type of MAX6467XS26D7+T, and what design considerations apply?

MAX6467XS26D7+T provides an active-low open-drain RESET output, requiring an external pullup resistor (typically 10kΩ–100kΩ) to the host logic rail. It sinks ≥80µA at VOL ≤ 0.3V and remains valid down to VCC = +1V. This configuration enables wired-OR reset busing and mixed-voltage interfacing - detailed in Pin Description (page 5) and Electrical Characteristics (VOL specs).

What package and footprint does MAX6467XS26D7+T use, and where can I find land patterns?

MAX6467XS26D7+T uses the 4-pin SC70-4 package (outline 21-0098, land pattern 90-0187), measuring 1.3mm × 0.8mm with 0.65mm pitch. Official land patterns and package drawings are available at analog.com/packages - referenced in Package Information (page 9) and confirmed by top-mark "AGN" matching XS26D3 variant in the Chip Information table.