MAX795R

3.0V/3.3V Adjustable Microprocessor Supervisory Circuits

Full-Function Battery-Backup ICs for 3V/3.3V Systems

Data Sheet (Rev. 6)
Viewing:

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
MAX793/MAX794 Only
  • 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
MAX795R
3.0V/3.3V Adjustable Microprocessor Supervisory Circuits
MAX793, MAX793R, MAX793S, MAX793T, MAX794, MAX795, MAX795R, MAX795S, MAX795T: Typical Operating Circuit
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts Product Life Cycle Description
Supervisory Circuits & Reset ICs 4
MAX792
PRODUCTION Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX820
PRODUCTION Microprocessor and Nonvolatile Memory Supervisory Circuits
MAX800
PRODUCTION Microprocessor Supervisory Circuits
MAX807
PRODUCTION Full-Featured µP Supervisory Circuit with ±1.5% Reset Accuracy
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Latest Discussions

No discussions on MAX795R yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed