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MAX1232CSA+ |MAX1232CSAMAXIMN/a2420avaiMicroprocessor Monitor
MAX1232CSA+T |MAX1232CSATMAXIM N/a15000avaiMicroprocessor Monitor
MAX1232CPA+ |MAX1232CPAMAXIMN/a4395avaiMicroprocessor Monitor
MAX1232CWE+ |MAX1232CWEMAXN/a5avaiMicroprocessor Monitor
MAX1232CWE-T |MAX1232CWETMAXIMN/a1900avaiMicroprocessor Monitor
MAX1232ESA+ |MAX1232ESAMAXIMN/a920avaiMicroprocessor Monitor
MAX1232ESA+T |MAX1232ESATMAXN/a2500avaiMicroprocessor Monitor
MAX1232EWE/T |MAX1232EWETMAXN/a931avaiMicroprocessor Monitor
MAX1232EWE-T |MAX1232EWETMAXN/a931avaiMicroprocessor Monitor


MAX1232CSA+T ,Microprocessor MonitorWmvnweDem 193599, Rsv l, 2/91 MAX1232 Microprocessor Monitor
MAX1232CWE ,MAX 1232 Microprocessor MonitorGeneral Description The MAX1232 microprocessor (pP) supervisory circuit provides " "housekeepin ..
MAX1232CWE ,MAX 1232 Microprocessor Monitor19-3899, Rev 1, 2/91 [VI IJXI/VI MAX1232 Microprocessor Monitor
MAX1232CWE ,MAX 1232 Microprocessor Monitor19-3899, Rev 1, 2/91 [VI IJXI/VI MAX1232 Microprocessor Monitor
MAX1232CWE+ ,Microprocessor MonitorGeneral Description The MAX1232 mxcvoprocessor (pP) supervisory circuit provides " "housekeepin ..
MAX1232CWE-T ,Microprocessor MonitorGeneral Description The MAX1232 mxcvoprocessor (pP) supervisory circuit provides " "housekeepin ..
MAX358CPE ,Fault-Protected Analog MultiplexerGeneral Description Maxim's Hl-508A and MAX358 are 8 channel single- ended (1 of 8) multiplexer ..
MAX358CWE ,Fault-Protected Analog MultiplexerELECTRICAL CHARACTERISTICS: MAX358/359 (See facing page for HI-508A/509A.) Specifications below ..
MAX358CWE ,Fault-Protected Analog MultiplexerGeneral Description Maxim's Hl-508A and MAX358 are 8 channel single- ended (1 of 8) multiplexer ..
MAX358CWE ,Fault-Protected Analog Multiplexer790449; Rev C), 4/88 lVI/JXI/VI Fault-Protected Analog Multiplexer
MAX358CWE+ ,Fault-Protected Analog MultiplexersELECTRICAL CHARACTERISTICS: MAX358/359 (See facing page for HI-508A/509A.) Specifications below ..
MAX358CWE+T ,Fault-Protected Analog MultiplexersELECTRICAL CHARACTERISTICS: HI-508A/509A (See facing page for MAX358/359.) Supplies 2 +15V, -15V ..


MAX1232CPA+-MAX1232CSA+-MAX1232CSA+T-MAX1232CWE+-MAX1232CWE-T-MAX1232ESA+-MAX1232ESA+T-MAX1232EWE/T-MAX1232EWE-T
Microprocessor Monitor
19-3899, Rev f. 2/91
General Description
The MAX1232 microprocessor (pP) supervisory circuit
provides up "housekeeping" and power-supply super-
vision functions while consuming only 1/10th the power
of the DS1232, The MAX1232 enhances circuit reliability
in " systems by monitoring the power supply, monitoring
software execution, and providing a debounced manual
reset input. The MAX1232 is a plug-in upgrade of the
Dallas DS1232,
A reset pulse of at least 250ms duration is supplied on
power-up, power-down, and Iow-voltage brown-out con-
ditions (5% or 10% supply tolerances can be selected
digitally). Also featured is a debounced manual reset
input that forces the reset outputs to their active states for
a minimum of 250ms. A digitaIIy-programmable
watchdog timer monitors software execution and can be
programmed fortimeout settings of 150ms. 600ms, or 1 .23ec.
The MAX1232 requires no external components.
Applications
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical pp Power Monitoring
AM] 2drjiei'ClheAyfl]
MAX1232 Microprocessor Monitor
Features
t Consumes 1/10th the Power of the DS1232
. Precision Voltage Monitor - Adjustable +4.5V
or +4.75V
. Power OK/Reset Pulse Width - 250ms Min
t No External Components
t Adjustable Watchdog Timer -150ms, 600ms, or
1 .2sec
. Debounced Manual Reset Input for External Overide
. Available In 8-pln DIP/Small Outline and
16-pin Wide Small Outline Packages
Ordering Information
L PART TEMP. RANGE PIN-PACKAGE
t MAX1232CPA cc to not a Plastic DIP
, MAX1232CSA 0'C to not 8 so
MAX1232CWE 0'C to +70'C 16 Wide so
-/SAxw32c/D 0'C to +70'C Dice"
MAX1232EPA -40"C to +850 8 Plastic DIP
MAX1232ESA _-4o‘c to +85'C 8 so
MAX1232EWE M0'C to +85°C 16 Wide so
MAX1232MJA -55‘c to +1250 8 CERDIP
. Contact factory for dice specifications.
Pin Configuration
TOPVIEW V
Block Diagram pansr E El Vcc
MAXIM -
fl) E MAX1232 El ST
mxw I0L T, E Cis-r
MAX1232 sun E E RST
Vcc - DlP/SO
“4 5%/10% - P_RST
lot {IOLERANCE ii, V
-1 ffruT, .
REF = RST LC E E NC
_ P8 RST E MAXIM E] l/cc
PETE - NC [E MAX1232 E NO
-r- DEBOUNCE - m E E ST
NO [E Ti] NC
T - ,1 - -
IO lwncnnoo WATCHDOG ST IDLE E] RST
t_SELEQ _ NO E E NC
GND [ii E HST
- WIDESO
9MM3COM Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at .
39 ”(WW
MAX 11 232
MAX1232 Microprocessor Monitor
ABSOLUTE MAXIMUM RATINGS
Voltage on any pin (with respect to GND) ......... -1V to +7V
Operating Temperature Ranges:
MAX1232C_ _
MAX1232E__ . ............
MAX1232M
.. ...O°Ct0 +70"C
........... -40°C to +85''C
......... -55°C to +125'C
Storage Temperature Range ,,,,,,,,,,
-65'C to +160°C
Lead Temperature (Soldering. 10 sec.) .........
_ _ . +300°C
Stresses be/vond those listed under 'Absolute Maximum Ratings" may cause permanent damage to the dewce These are stress ratings only, and functional
operation o
absolute max1mum ranng condmons for extended periods may affect device reliability.
RECOMMENDED D.C. OPERATING CONDITIONS
(TA = TMIN to TMAX)
the device at these or any other condmons beyond those indicated in the operational sections of the specifcatons IS not Implied Exposure to
- - PARKMETER SYMBOL -lrr, - - CONDITIONS MIN TYP MAX UNITS
Supply Voltage VCC 4.5 5.0 5.5 V
gT and TB-tst
J” 'H:9_'1_L919_'£N9391) VIH 2.0 VCC +0.3 V
37 and PTI RST
- Irtutlow Level - VIL :03 +08 V
D.C. ELECTRICAL CHARACTERISTICS
(TA = TMIN to TMAX; Vcc = +4.5V to +5.5V)
PARAMETER SYMBOL CONDITIONS MIN fvp" MAX UNITS
Input Liakage Ct, TOL “L i -1.0 +1.0 pA
Output Current RST IOH VOH = 2.4V - -1,,"1.:Q_“ _12 - mA
Output Current RST, R_ST IOL VOL = 0.4V li', 2.0 10 mA
Operating Current (Note 2) Ice 1 50 200 pA
Vcc 5% Trip Point (Note 3) VCCTP TOL = GND 4.50 4.62 4.74 V
Vcc 10% Trip Point (Note 3) VCCTP TOL = Vcc 4.25 4.37 4i9_ - V
MAXl/l/l
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