MAX823
MAX823
PRODUCTION5-Pin Microprocessor Supervisory Circuits with Watchdog Timer and Manual Reset
Industry's-First SOT Reset ICs with Watchdog and Manual Reset
- Part Models
- 22
- 1ku List Price
- Starting From $3.17
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Overview
- Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies
- Operating Current:
- 6µA (MAX823L/M) (SC70)
- 2µA (MAX825T/S/R/Z/Y) (SC70)
- Fully Specified Over Temperature
- 140ms min Power-On Reset
- Guaranteed active-low RESET Valid to VCC = 1V
- Power-Supply Transient Immunity
- Watchdog Timer with 1.6s Timeout (MAX823/MAX824)
- Manual Reset Input (MAX823/MAX825)
- No External Components
The MAX823/MAX824/MAX825 microprocessor (µP) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin SOT23 and SC70 packages. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on VCC.
Seven preprogrammed reset threshold voltages are available (see Reset Threshold Table in the full data sheet). All three devices have an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V. The MAX823 also offers a watchdog input and manual reset input. The MAX824 offers a watchdog input and a complementary active-high reset. The MAX825 offers a manual reset input and a complementary active-high reset. The Selector Guide explains the functions offered in this series of parts.
Applications
- Automotive Electronics
- Computers and Controllers
- Critical µP Monitoring
- Embedded Controllers
- Intelligent Instruments
- Portable Battery-Powered Equipment
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 |
|---|---|---|---|
| MAX823LEUK+ | SOT_23 | ||
| MAX823LEUK+T | SOT_23 | ||
| MAX823LEXK+T | SC70 | ||
| MAX823MEUK+ | SOT_23 | ||
| MAX823MEUK+T | SOT_23 | ||
| MAX823REUK+ | SOT_23 | ||
| MAX823REUK+T | SOT_23 | ||
| MAX823REXK+ | SC70 | ||
| MAX823REXK+T | SC70 | ||
| MAX823SEUK+ | SOT_23 | ||
| MAX823SEUK+T | SOT_23 | ||
| MAX823SEXK+ | SC70 | ||
| MAX823SEXK+T | SC70 | ||
| MAX823TEUK+ | SOT_23 | ||
| MAX823TEUK+T | SOT_23 | ||
| MAX823TEUK/GG8 | Small-Outline Transistor Package | ||
| MAX823TEXK+ | SC70 | ||
| MAX823TEXK+T | SC70 | ||
| MAX823YEXK+ | SC70 | ||
| MAX823YEXK+T | SC70 | ||
| MAX823ZEXK+ | SC70 | ||
| MAX823ZEXK+T | SC70 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571C PIN/ERRATA |
||
| MAX823LEUK+ | PRODUCTION | |
| MAX823LEUK+T | PRODUCTION | |
| MAX823MEUK+T | PRODUCTION | |
| MAX823REUK+T | PRODUCTION | |
| MAX823SEUK+ | PRODUCTION | |
| MAX823SEUK+T | PRODUCTION | |
| MAX823TEUK+ | PRODUCTION | |
| MAX823TEUK+T | PRODUCTION | |
|
Feb 4, 2015 - 1341_CANCELLATION ASSEMBLY |
||
| MAX823LEUK+ | PRODUCTION | |
| MAX823LEUK+T | PRODUCTION | |
| MAX823MEUK+ | PRODUCTION | |
| MAX823MEUK+T | PRODUCTION | |
| MAX823REUK+ | PRODUCTION | |
| MAX823REUK+T | PRODUCTION | |
| MAX823SEUK+ | PRODUCTION | |
| MAX823SEUK+T | PRODUCTION | |
| MAX823TEUK+ | PRODUCTION | |
| MAX823TEUK+T | PRODUCTION | |
|
Mar 11, 2021 - 1703RA ASSEMBLY |
||
| MAX823REUK+ | PRODUCTION | |
| MAX823REUK+T | PRODUCTION | |
|
Apr 20, 2026 - 2571 PIN/ERRATA |
||
| MAX823REXK+T | PRODUCTION | |
| MAX823SEXK+ | PRODUCTION | |
| MAX823SEXK+T | PRODUCTION | |
| MAX823TEXK+T | PRODUCTION | |
| MAX823YEXK+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Supervisory Circuits & Reset ICs 10 | ||
| MAX6316 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6317 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6318 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6319 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6320 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6321 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6322 | PRODUCTION | 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset |
| MAX6358 | PRODUCTION | Dual/Triple-Voltage µP Supervisory Circuits |
| MAX6359 | PRODUCTION | Dual/Triple-Voltage µP Supervisory Circuits |
| MAX6360 | PRODUCTION | Dual/Triple-Voltage µP Supervisory Circuits |
Tools & Simulations
IBIS Model 1
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