MAX6369
PRODUCTIONPin-Selectable Watchdog Timers
- Part Models
- 4
- 1ku List Price
- Starting From $2.05
Overview
- Precision Watchdog Timer for Critical µP Applications
- Pin-Selectable Watchdog Timeout Periods
- Pin-Selectable Watchdog Startup Delay Periods
- Ability to Change Watchdog Timing Characteristics Without Power Cycling
- Open-Drain or Push-Pull Pulsed Active-Low Watchdog Output
- Watchdog Timer Disable Feature
- +2.5V to +5.5V Operating Voltage
- 8µA Low Supply Current
- No External Components Required
- Miniature 8-Pin SOT23 Package
- AEC-Q100 Qualified (MAX6369KA/V+ and MAX6374KA/V+ Only)
The MAX6369–MAX6374 are pin-selectable watchdog timers that supervise microprocessor (µP) activity and signal when a system is operating improperly. During normal operation, the microprocessor should repeatedly toggle the watchdog input (WDI) before the selected watchdog timeout period elapses to demonstrate that the system is processing code properly. If the µP does not provide a valid watchdog input transition before the timeout period expires, the supervisor asserts a watchdog (active-low WDO) output to signal that the system is not executing the desired instructions within the expected time frame. The watchdog output pulse can be used to reset the µP or interrupt the system to warn of processing errors.
The MAX6369–MAX6374 are flexible watchdog timer supervisors that can increase system reliability through notification of code execution errors. The family offers several pin-selectable watchdog timing options to match a wide range of system timing applications:
- Watchdog startup delay: provides an initial delay before the watchdog timer is started.
- Watchdog timeout period: normal operating watchdog timeout period after the initial startup delay.
- Watchdog output/timing options: open drain (100ms) or push-pull (1ms).
Applications
- Automotive
- Critical µP and Microcontroller (µC) Monitoring
- Embedded Control Systems
- Industrial Controllers
- Networking
- Telecommunications
Documentation
Data Sheet 1
Reliability Data 1
Design Note 3
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 |
|---|---|---|---|
| MAX6369KA+ | Small-Outline Transistor Package | ||
| MAX6369KA+T | Small-Outline Transistor Package | ||
| MAX6369KA/V+ | Small-Outline Transistor Package | ||
| MAX6369KA/V+T | Small-Outline Transistor Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Nov 1, 2021 - 2209 ASSEMBLY |
||
| MAX6369KA+ | PRODUCTION | |
| MAX6369KA+T | PRODUCTION | |
|
Jan 19, 2015 - 1488 ELECTRICAL DATASHEET |
||
| MAX6369KA+ | PRODUCTION | |
| MAX6369KA+T | PRODUCTION | |
| MAX6369KA/V+ | PRODUCTION | |
| MAX6369KA/V+T | PRODUCTION | |
|
Feb 5, 2015 - 1370_CANCELLATION ASSEMBLY |
||
| MAX6369KA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Circuit Monitors 2 | ||
| MAX836 | PRODUCTION | 4-Pin Micropower Voltage Monitors |
| MAX837 | PRODUCTION | 4-Pin Micropower Voltage Monitors |
| Comparators 4 | ||
| MAX9040 | PRODUCTION | Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs |
| MAX9041 | PRODUCTION | Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs |
| MAX9050 | PRODUCTION | Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs |
| MAX9051 | PRODUCTION | Micropower, Single-Supply, UCSP/SOT23 Comparator + Precision Reference ICs |
| Supervisory Circuits & Reset ICs 9 | ||
| MAX6806 | PRODUCTION | Voltage Detectors |
| MAX6807 | Voltage Detectors | |
| MAX6808 | PRODUCTION | Voltage Detectors |
| MAX6326 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6327 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6328 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6346 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6347 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
| MAX6348 | PRODUCTION | 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits |
Tools & Simulations
IBIS Model 1
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