MAX793
MAX793
PRODUCTION3.0V/3.3V Adjustable Microprocessor Supervisory Circuits
Full-Function Battery-Backup ICs for 3V/3.3V Systems
- Part Models
- 13
- 1ku List Price
- Starting From $6.73
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Overview
MAX793/MAX794/MAX795
- Precision Supply-Voltage Monitor:
- Fixed Reset Trip Voltage (MAX793/MAX795)
- Adjustable Reset Trip Voltage (MAX794)
- Guaranteed Reset Assertion to VCC = 1V
- Backup-Battery Power Switching—Battery Voltage Can Exceed VCC
- On-Board Gating of Chip-Enable Signals—7ns Max Propagation Delay
- Battery Freshness Seal
- Battery OK Output (MAX793)
- Uncommitted Voltage Monitor for Power-Fail or Low-Battery Warning
- Independent Watchdog Timer (1.6s timeout)
- Manual Reset Input
The MAX793/MAX794/MAX795 microprocessor (µP) supervisory circuits monitor and control the activities of +3.0V/+3.3V µPs by providing backup-battery switchover, among other features such as low-line indication, µP reset, write protection for CMOS RAM, and a watchdog (see the Selector Guide in the full data sheet). The backup-battery voltage can exceed VCC, permitting the use of 3.6V lithium batteries in systems using 3.0V to 3.3V for VCC.
The MAX793/MAX795 offer a choice of reset threshold voltage range (denoted by suffix letter): 3.00V to 3.15V (T), 2.85V to 3.00V (S), and 2.55V to 2.70V (R). The MAX794's reset threshold is set externally with a resistor divider. The MAX793/MAX794 are available in 16-pin DIP and narrow SO packages, and the MAX795 comes in 8-pin DIP and SO packages.
Applications
- Battery-Powered Computers/Controllers
- Critical µP Power Monitoring
- Embedded Controllers
- Intelligent Controllers
- Portable Equipment
Documentation
Data Sheet 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 |
|---|---|---|---|
| MAX793RCSE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX793RCSE+T | Small-Outline IC Narrow (0.15in) | ||
| MAX793RESE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX793RESE+T | Small-Outline IC Narrow (0.15in) | ||
| MAX793SCPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX793SCSE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX793SCSE+T | Small-Outline IC Narrow (0.15in) | ||
| MAX793SESE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX793SESE+T | Small-Outline IC Narrow (0.15in) | ||
| MAX793TCSE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX793TEPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX793TESE+ | Small-Outline IC Narrow (0.15in) | ||
| MAX793TESE+T | Small-Outline IC Narrow (0.15in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571A PIN/ERRATA |
||
| MAX793RCSE+T | PRODUCTION | |
| MAX793SCSE+T | PRODUCTION | |
| MAX793SESE+T | PRODUCTION | |
| MAX793TESE+T | PRODUCTION | |
|
Sep 12, 2024 - 2361R WAFER FAB |
||
| MAX793SCPE+ | PRODUCTION | |
| MAX793SCSE+ | PRODUCTION | |
| MAX793SCSE+T | PRODUCTION | |
| MAX793SESE+ | PRODUCTION | |
| MAX793SESE+T | PRODUCTION | |
|
Feb 18, 2024 - 2361Q WAFER FAB |
||
| MAX793TCSE+ | PRODUCTION | |
| MAX793TEPE+ | PRODUCTION | |
| MAX793TESE+ | PRODUCTION | |
| MAX793TESE+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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