DESCRIPTION
The CAT811 and CAT812 are µP supervisory circuits that monitor power supplies in digital systems. The CAT811 and CAT812 are direct replacements for the MAX811 and MAX812 in applications operating over the industrial temperature range; both have a manual reset input.

FEATURES
■ Precision monitoring of
    +5.0 V (+/- 5%, +/- 10%, +/- 20%),
    +3.3 V (+/- 5%, +/ 10%),
    +3.0 V (+/- 10%) and
    +2.5 V (+/- 5%) power supplies
■ Offered in two output configurations:
    - CAT811: Active LOW reset
    - CAT812: Active HIGH reset
■ Manual reset input
■ Direct replacements for the MAX811 and
    MAX812 in applications operating over the
    industrial temperature range
■ Reset valid down to VCC = 1.0 V
■ 6 µA power supply current
■ Power supply transient immunity
■ Compact 4-pin SOT143 package
■ Industrial temperature range: -40˚C to +85˚C

APPLICATIONS
■ Computers
■ Servers
■ Laptops
■ Cable modems
■ Wireless communications
■ Embedded control systems
■ White goods
■ Power meters
■ Intelligent instruments
■ PDAs and handheld equipment