MAX6324
MAX6324
PRODUCTIONµP Supervisory Circuits with Windowed (Min/Max) Watchdog and Manual Reset
Industry's-First µP Supervisory with Windowed Watchdog and Manual Reset
- Part Models
- 20
- 1ku List Price
- Starting From $2.95
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Overview
- Min/Max (Windowed) Watchdog, 8 Factory-Trimmed Timing Options
- Pulsed Open-Drain, Active-Low Watchdog Output
- Power-On Reset
- Precision Monitoring of +2.5V, +3.0V, +3.3V, and +5.0V Power Supplies
- Open-Drain or Push-Pull Active-Low RESET Outputs
- Low-Power Operation (23µA typ)
- Debounced Manual Reset Input
- Guaranteed Reset Valid to VCC = +1.2V
- AEC-Q100 Qualified MAX6324HUT44/V+T
The MAX6323/MAX6324 microprocessor (µP) supervisory circuits monitor power supplies and µP activity in digital systems. A watchdog timer looks for activity outside an expected window of operation. Six laser-trimmed reset thresholds are available with ±2.5% accuracy from +2.32V to +4.63V. Valid active-low RESET output is guaranteed down to VCC = +1.2V.
The active-low RESET output is either push-pull (MAX6323) or open-drain (MAX6324). active-low RESET is asserted low when VCC falls below the reset threshold, or when the manual reset input (active-low MR) is asserted low. active-low RESET remains asserted for at least 100ms after VCC rises above the reset threshold and active-low MR is deasserted.
The watchdog pulse output (active-low WDPO) utilizes an open-drain configuration. It can be triggered either by a fast timeout fault (watchdog input pulses are too close to each other) or a slow timeout fault (no watchdog input pulse is observed within the timeout period). The watchdog timeout is measured from the last falling edge of watchdog input (WDI) with a minimum pulse width of 300ns. Active-low WDPO is asserted for 1ms when a fault is observed. Eight laser-trimmed timeout periods are available.
The MAX6323/MAX6324 are offered in a 6-pin SOT23 package and operate over the extended temperature range (-40°C to +125°C).
Applications
- Automotive
- Embedded Control Systems
- Industrial
- Medical
Documentation
Data Sheet 1
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX6324AUT29+ | SOT_23 | ||
| MAX6324AUT29+T | SOT_23 | ||
| MAX6324AUT31+ | SOT_23 | ||
| MAX6324AUT31+T | SOT_23 | ||
| MAX6324AUT46+ | SOT_23 | ||
| MAX6324AUT46+T | SOT_23 | ||
| MAX6324BUT29+ | SOT_23 | ||
| MAX6324BUT29+T | SOT_23 | ||
| MAX6324BUT46+ | SOT_23 | ||
| MAX6324BUT46+T | SOT_23 | ||
| MAX6324EUT29+ | SOT_23 | ||
| MAX6324EUT29+T | SOT_23 | ||
| MAX6324FUT26+ | SOT_23 | ||
| MAX6324FUT26+T | SOT_23 | ||
| MAX6324GUT29+ | SOT_23 | ||
| MAX6324GUT29+T | SOT_23 | ||
| MAX6324GUT46+ | SOT_23 | ||
| MAX6324GUT46+T | SOT_23 | ||
| MAX6324HUT29+ | SOT_23 | ||
| MAX6324HUT29+T | SOT_23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 11, 2021 - 1703RN ASSEMBLY |
||
| MAX6324AUT29+ | PRODUCTION | |
| MAX6324AUT29+T | PRODUCTION | |
| MAX6324AUT31+ | PRODUCTION | |
| MAX6324AUT31+T | PRODUCTION | |
| MAX6324BUT46+ | PRODUCTION | |
| MAX6324EUT29+ | PRODUCTION | |
| MAX6324EUT29+T | PRODUCTION | |
| MAX6324FUT26+ | PRODUCTION | |
| MAX6324FUT26+T | PRODUCTION | |
| MAX6324GUT29+ | PRODUCTION | |
| MAX6324GUT46+ | PRODUCTION | |
| MAX6324HUT29+ | PRODUCTION | |
| MAX6324HUT29+T | PRODUCTION | |
|
Feb 4, 2015 - 1341_CANCELLATION ASSEMBLY |
||
| MAX6324AUT29+ | PRODUCTION | |
| MAX6324AUT29+T | PRODUCTION | |
| MAX6324AUT46+ | PRODUCTION | |
| MAX6324AUT46+T | PRODUCTION | |
| MAX6324BUT29+ | PRODUCTION | |
| MAX6324BUT29+T | PRODUCTION | |
| MAX6324BUT46+ | PRODUCTION | |
| MAX6324BUT46+T | PRODUCTION | |
| MAX6324EUT29+ | PRODUCTION | |
| MAX6324GUT29+ | PRODUCTION | |
| MAX6324GUT29+T | PRODUCTION | |
| MAX6324GUT46+ | PRODUCTION | |
| MAX6324GUT46+T | PRODUCTION | |
| MAX6324HUT29+ | PRODUCTION | |
| MAX6324HUT29+T | PRODUCTION | |
|
Apr 20, 2026 - 2571C PIN/ERRATA |
||
| MAX6324AUT29+T | PRODUCTION | |
| MAX6324AUT31+T | PRODUCTION | |
| MAX6324BUT29+T | PRODUCTION | |
| MAX6324BUT46+T | PRODUCTION | |
| MAX6324FUT26+T | PRODUCTION | |
| MAX6324GUT29+T | PRODUCTION | |
| MAX6324GUT46+T | PRODUCTION | |
| MAX6324HUT29+T | PRODUCTION | |
|
Jun 29, 2018 - 1703N ASSEMBLY |
||
| MAX6324BUT46+T | PRODUCTION | |
| MAX6324GUT29+T | PRODUCTION | |
| MAX6324GUT46+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Tools & Simulations
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