ds1233m-5t-r Maxim Integrated Products, Inc., ds1233m-5t-r Datasheet

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ds1233m-5t-r

Manufacturer Part Number
ds1233m-5t-r
Description
Ds1233m Econoreset
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
FEATURES
§ Automatically restarts microprocessor after
§ Maintains reset for 350 ms after V
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
§ Low-cost TO-92 package or surface mount
§ Internal 5 kW pullup resistor
§ Compatible with Motorola 68XXX series
§ Pin function compatible with the Motorola
§ Operating temperature of -40°C to +85°C
DESCRIPTION
The DS1233M EconoReset uses a precision temperature-compensated reference and comparator circuit to
monitor the status of the power supply (V
power-fail signal is generated which forces reset to the active (low) state. When V
intolerance condition, the reset signal is kept in the active state for approximately 350 ms to allow the
power supply and processor to stabilize.
www.maxim-ic.com
power failure
to an in-tolerance condition
reference and voltage sensor
8-pin SOIC packages available
and HC16 Microprocessors
MC33064, MC34064, MC33164, and
MC34164
CC
returns
CC
). When an out-of-tolerance condition is detected, an internal
1 of 4
PIN ASSIGNMENT
PIN DESCRIPTIONS
TO-92
1 RST
2 V
3 GND
8-Pin SOIC
V
NC
GND
RST
CC
TO-92 PACKAGE
BOTTOM VIEW
Drawings Section
CC
1
_
1
On Website
DALLAS
DS1233
See Mech.
Econo
Reset
2
_
2
3
_
3
- Active Low Reset Output
- Power Supply
- Ground
- Active Low Reset Output
- Power Supply
- No Connect
- Ground
GND
NC
RST
V
CC
DS1233M 8-Pin SOIC
See Mech. Drawings
EconoReset
Section on Website
1
2
4
3
(150mil)
CC
DS1233M
8
7
5
6
returns to an
NC
NC
NC
NC
041002

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ds1233m-5t-r Summary of contents

Page 1

... MC34164 § Operating temperature of -40°C to +85°C DESCRIPTION The DS1233M EconoReset uses a precision temperature-compensated reference and comparator circuit to monitor the status of the power supply (V power-fail signal is generated which forces reset to the active (low) state. When V intolerance condition, the reset signal is kept in the active state for approximately 350 ms to allow the power supply and processor to stabilize ...

Page 2

... 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 defined by the tolerance of the part selected, the RST signal is asserted. On power-up, RST is kept active for approximately 350 ms after the power supply has reached the selected tolerance. This allows the power supply and microprocessor to stabilize before RST is released ...

Page 3

... VOLTAGE TRIP LEVELS PARAMETER Voltage High Trip Level Voltage Low Trip Level Voltage High Trip Level Voltage Low Trip Level TIMING DIAGRAM: POWER-DOWN Figure 4 SYMBOL MIN TYP V HTL V LTL V HTL V LTL MAX UNITS NOTES DS1233M-5, 4.75 V DS1233M-55 DS1233M-5, 4.00 V DS1233M-55 3.14 V DS1233M-3 2.48 V DS1233M-3 ...

Page 4

... Supply Voltage DC ELECTRICAL CHARACTERISTICS PARAMETER Output Voltage @ -500 m A Output Current @ 0.4V Operating Current V Trip Point (DS1233M- Trip Point (DS1233M-55 Trip Point (DS1233M-3) CC Output Capacitance Internal Pullup Resistor AC ELECTRICAL CHARACTERISTICS PARAMETER Reset Active Time V Detect to RST CC V Slew Rate ( ...

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