MAX705
MAX705
PRODUCTIONLow-Cost, µP Supervisory Circuits
Low-Cost Reset + Watchdog ICs
- Part Models
- 13
- 1ku List Price
- Starting From $4.39
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Overview
- Supervisory-Function Integration Significantly Improves System Reliability While Reducing Board Space
- µMAX Package
- Guaranteed Active Low RESET Valid at VCC = 1V
- 200ms Reset Pulse Width
- Debounced TTL/CMOS-Compatible Manual-Reset Input
- Active-High Reset Output (MAX707/MAX708/MAX813L)
- Precision-Supply Voltage Monitor
- 4.65V (MAX705/MAX707/MAX813L)
- 4.40V (MAX706/MAX708)
- Voltage Monitor for Power-Fail or Low-Battery Warning
The MAX705–MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX705/MAX706/MAX813L provide four functions:
- A reset output during power-up, power-down, and brownout conditions.
- An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6 seconds.
- A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V.
- An active-low manual-reset input.
The MAX707/MAX708 are the same as the MAX705/MAX706, except an active-high reset is substituted for the watchdog timer. The MAX813L is the same as the MAX705, except RESET is provided instead of active-low RESET.
Two supply-voltage monitor levels are available: The MAX705/MAX707/MAX813L generate a reset pulse when the supply voltage drops below 4.65V, while the MAX706/MAX708 generate a reset pulse below 4.40V. All four parts are available in 8-pin DIP, SO and µMAX® packages.
Applications
- Computers
- Controllers
- Critical µP Power Monitoring
- Intelligent Instruments
Documentation
Data Sheet 2
Analog Dialogue 1
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 |
|---|---|---|---|
| MAX705C/D | DIE | ||
| MAX705CPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX705CSA+ | Small-Outline IC Narrow (0.15in) | ||
| MAX705CSA+T | Small-Outline IC Narrow (0.15in) | ||
| MAX705CUA+ | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX705CUA+T | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX705EPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX705ESA+ | Small-Outline IC Narrow (0.15in) | ||
| MAX705ESA+T | Small-Outline IC Narrow (0.15in) | ||
| MAX705EUA+ | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX705EUA+T | Micro-MAX, Thin Shrink Small-Outline | ||
| MAX705MJA | Ceramic Dual-In-Line, Narrow (0.3in) | ||
| MAX705MJA/883B | Ceramic Dual-In-Line, Narrow (0.3in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 1, 2020 - 1702R ASSEMBLY |
||
| MAX705CSA+ | PRODUCTION | |
| MAX705CSA+T | PRODUCTION | |
|
Apr 20, 2026 - 2571A PIN/ERRATA |
||
| MAX705CSA+T | PRODUCTION | |
| MAX705ESA+T | PRODUCTION | |
|
Aug 28, 2018 - 1702A ASSEMBLY |
||
| MAX705ESA+ | PRODUCTION | |
| MAX705ESA+T | PRODUCTION | |
|
Sep 19, 2018 - 1753N ASSEMBLY |
||
| MAX705EUA+ | PRODUCTION | |
| MAX705EUA+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 |