DS1233M Dallas, DS1233M Datasheet - Page 2

• Manufacturer Part Number: DS1233M
• Description: EconoReset
• Manufacturer: Dallas

OPERATION – POWER MONITOR
The DS1233M provides the functions of detecting
out-of-tolerance power supply conditions and warning a
processor-based system of impending power failure.
When V
BLOCK DIAGRAM Figure 1
APPLICATION EXAMPLE Figure 2
DS1233M
022698 2/4
CC
is detected as out-of-tolerance, as defined
GROUND
V
CC
DS1233M
V CC
Vcc TOLERANCE
T.C. REFERENCE
AND BIAS
RST
by the tolerance of the part selected, the RST signal is
asserted. On power-up, RST is kept active for approxi-
mately 350 ms after the power supply has reached the
selected tolerance. This allows the power supply and
microprocessor to stabilize before RST is released.
350 ms
DELAY
RESET
MICROPROCESSOR
5K
RST