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ManualsBrandsMAXIM INTEGRATED ManualsPMICsPMIC - system monitor Reset/power-on reset SOIC 8
1234
1 of 4 041002
FEATURES
§ Automatically restarts microprocessor after
power failure
§ Maintains reset for 350 ms after V
CC
returns
to an in-tolerance condition
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
reference and voltage sensor
§ Low-cost TO-92 package or surface mount
8-pin SOIC packages available
§ Internal 5 kW pullup resistor
§ Compatible with Motorola 68XXX series
and HC16 Microprocessors
§ Pin function compatible with the Motorola
MC33064, MC34064, MC33164, and
MC34164
§ Operating temperature of -40°C to +85°C
PIN ASSIGNMENT
1 2 3
PIN DESCRIPTIONS
TO-92
1 RST - Active Low Reset Output
2 V
CC
- Power Supply
3 GND - Ground
8-Pin SOIC
RST - Active Low Reset Output
V
CC
- Power Supply
NC - No Connect
GND - Ground
DESCRIPTION
The DS1233M EconoReset uses a precision temperature-compensated reference and comparator circuit to
monitor the status of the power supply (V
CC
). When an out-of-tolerance condition is detected, an internal
power-fail signal is generated which forces reset to the active (low) state. When V
CC
returns to an
intolerance condition, the reset signal is kept in the active state for approximately 350 ms to allow the
power supply and processor to stabilize.
DS1233M
EconoReset
www.maxim-ic.com
_
_ _
RST
V
CC
N
C
GND
N
C
N
C
N
C
N
C
1
2
3
4
8
7
6
5
DS1233M 8-Pin SOIC
(150mil)
See Mech. Drawings
Section on Website
BOTTOM VIE
W
TO-92 PACKAGE
See Mech.
Drawings Section
On Website
1 2 3
DALLAS
DS1233
Econo
Reset

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