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MAX8215CPDN/a21avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215CPDMAXIM ?N/a30avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215CSDMAXIM ?N/a33avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215CSDMAXN/a265avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215CSDMAXIMN/a29avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215CSDMAXIX ?N/a14avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215EPDMAXN/a20avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215EPDMAXIMN/a50avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8215ESDMAXIMN/a67avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216CPDMAXIM ?N/a10avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216CSDMAXN/a6avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216CSDMAXIMN/a390avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216EPDMAXN/a10avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216EPDMAXIM ?N/a12avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216ESDMAXIMN/a68avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
MAX8216MJDMAXIMN/a1065avai5V / 12V (15V) Dedicated Microprocessor Voltage Monitors


MAX8216MJD ,5V / 12V (15V) Dedicated Microprocessor Voltage MonitorsApplications' Wide Supply Range: 2.7V to 11VMicroprocessor Voltage Monitor' Built-In Hysteresis+5V, ..
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MAX821LUS-T ,4-Pin レP Voltage Monitors with Pin-Selectable Power-On Reset Timeout DelayApplicationsMAX822LUS-T 4.63 BF_ _Bar-Code ScannersMAX822MUS-T 4.38 BG_ _ComputersMAX822TUS-T 3.08 ..
MAX821MUS+T ,4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout DelayApplicationsMAX822LUS-T4.63 BF_ _Bar-Code ScannersMAX822MUS-T 4.38 BG_ _ComputersMAX822TUS-T 3.08 B ..
MAX821MUS-T ,4-Pin レP Voltage Monitors with Pin-Selectable Power-On Reset Timeout DelayMAX821/MAX82219-1122; Rev 1; 12/994-Pin µP Voltage Monitors with Pin-SelectablePower-On Reset Timeo ..
MAX821PUS ,4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout DelayFeaturesThe MAX821/MAX822 microprocessor (µP) supervisory♦ Pin-Selectable, Precision Power-On Reset ..
MB81464- ,MOS 262144 Bit DRAMfeatures page mode which allows high speed random access of up to 256 bits within the same tow. ..
MB81C81A-35 ,CMOS 256K-BIT HIGH-SPEED SRAMMay 1990 00 Edition1.0 FUJITSU M38 1 C8 1A-25/-35 CMOS 256K-BI T HIGH-SPEED SRAM 256K Words ..
MB81F643242C-10FN ,4 x 512K x 32 bit synchronous dynamic RAMFUJITSU SEMICONDUCTORADVANCED INFO. AE0.1EDATA SHEETMEMORYCMOS4 · 512 K · 32 BITSYNCHRONOUS DYNAMIC ..
MB81F643242C-10FN ,4 x 512K x 32 bit synchronous dynamic RAMfeatures a fully synchronous operation referenced to a positive edge clock whereby all operations a ..
MB81N643289-60FN ,8 x 256K x 32 bit double data rate FCRAMapplications where large memory density and high effective bandwidth arerequired and where a simple ..
MB8264A-10 , MOS 65536-BIT DYNAMIC RANDOM ACCESS MEMORY


MAX8215CPD-MAX8215CSD-MAX8215EPD-MAX8215ESD-MAX8216CPD-MAX8216CSD-MAX8216EPD-MAX8216ESD-MAX8216MJD
5V / 12V (15V) Dedicated Microprocessor Voltage Monitors
_______________General Description
The MAX8215 contains five voltage comparators; four
are for monitoring +5V, -5V, +12V, and -12V, and the
fifth monitors any desired voltage. The MAX8216 is
identical, except it monitors ±15V supplies instead of
±12V. The resistors required to monitor these voltages
and provide comparator hysteresis are included on-
chip. All comparators have open-drain outputs. These
devices consume 250µA max supply current over tem-
perature.
________________________Applications

Microprocessor Voltage Monitor
+5V, -5V, +12V, -12V Supply Monitoring (MAX8215)
+5V, -5V, +15V, -15V Supply Monitoring (MAX8216)
Overvoltage/Undervoltage Detection with
Uncommitted Comparator
Industrial Controllers
Mobile Radios
Portable Instruments
Industrial Equipment
Data-Acquisition Systems
____________________________Features
4 Dedicated Comparators plus 1 Auxiliary
Comparator
5V Dedicated Comparator Has ±1.25% Accuracy-5V, +12V, -12V, +15V, -15V Dedicated
Comparators Have ±1.5% Accuracy
Overvoltage/Undervoltage Detection or
Programmable Delay Using Auxiliary Comparator
Internal 1.24V Reference with ±1% Initial
Accuracy
Wide Supply Range: 2.7V to 11VBuilt-In Hysteresis250µA Max Supply Current Over Temp.Independent Open-Drain OutputsAll Precision Components Included
______________Ordering Information
Ordering Information continued on last page.

*Dice are tested at TA = +25°C.
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
________________________________________________________________Maxim Integrated Products1
__________________Pin Configuration
__________Typical Operating Circuit
Call toll free 1-800-998-8800 for free samples or literature.

19-0169; Rev 0; 8/93
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(VDD= +5V, GND = 0V, TA= TMINto TMAX, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VDD............................................................................-0.3V, +12V
VREF..............................................................-0.3V, (VDD+ 0.3V)
OUT_, DOUT Outputs....................................-0.3V, (VDD+ 0.3V)
+5V Input...................................................................+20V, -0.3V
-5V, +12V, +15V, -12V, -15V Inputs.....................................±50V
DIN Input.......................................................(VDD+ 0.3V), -0.3V
Continuous Power Dissipation (TA= +70°C)
Plastic DIP (derate 10.00mW/°C above +70°C)...........800mW
SO (derate 8.33mW/°C above +70°C)..........................667mW
CERDIP (derate 9.09mW/°C above +70°C)..................727mW
Operating Temperature Ranges:
MAX821_C_ _......................................................0°C to +70°C
MAX821_E_ _....................................................-40°C to +85°C
MAX821_M_ _.................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________3
ELECTRICAL CHARACTERISTICS (continued)

(VDD= +5V, GND = 0V, TA= TMINto TMAX, unless otherwise noted.)
Note 1: To overdrive the +5V/+12V/+15V comparators with a 30mV overdrive voltage, use the formula 30mV

to determine the required input voltage. VTHR is the threshold of the particular overdriven comparator. To overdrive the
-5V/-12V/-15V comparators use 30mV .
VTHR
1.24)VTHR
1.24I[1+ ]
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics

(TA=+25°C, unless otherwise noted.)
COMPARATOR INPUT BIAS CURRENT
vs. TEMPERATURE
MAX8215-TOC1
TEMPERATURE (C°)
INPUT BIAS CURRENT (nA)
COMPARATOR INPUT BIAS CURRENT
vs. SUPPLY VOLTAGE
MAX8215-TOC2
SUPPLY VOLTAGE (V)
INPUT BIAS CUREENT (nA)
OUTPUT VOLTAGE LOW
vs. OUTPUT SINK CURRENT
MAX8215-TOC3
VOL (V)
OUTPUT SINK CURRENT (mA)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)457891011
MAX8215-TOC41.23
REFERENCE VOLTAGE
vs. REFERENCE SOURCE CURRENT

MAX8215-TOC5
REFERENCE SOURCE CURRENT (µA)
VREF,REFERENCE VOLTAGE (V)1.231
REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
VREF, REFERENCE VOLTAGE (V)45678910
MAX8215-TOC6
VREF OUTPUT VOLTAGE
vs. TEMPERATURE
TEMPERATURE (°C)
VREF, REFERENCE VOLTAGE (V)
MAX8215-TOC7
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors
_______________________________________________________________________________________5
_____________________________Typical Operating Characteristics (continued)

(TA= +25°C, unless otherwise noted.)
MAX8215/MAX8216
±5V, ±12V (±15V) Dedicated
Microprocessor Voltage Monitors_______________________________________________________________________________________
_______________Detailed Description

The MAX8215/MAX8216 contain 5 comparators (Figure
1). The comparator with its output labeled DOUT is dis-
tinguished from the others in that it can be set up to mon-
itor various voltages; each of the other 4 comparators
monitors a specific voltage. The DOUT comparator’s
noninverting input is available external to the device; its
inverting input is tied internally to the reference.
The MAX8215/MAX8216 comparators have open-drain
outputs. Thus, these devices require pull-up resistors
for proper operation. See the Typical Operating Circuit.
Open-drain outputs are useful for driving LEDs and for
situations in which the comparator outputs must be
connected together (i.e., wire-ORed).
Bypass VDDwith 0.1µF connected to PGND.
__________Applications Information
Hysteresis

When the voltage on a typical comparator’s input is
at or near the voltage on the other input, ambient
noise generally causes the comparator output to
oscillate. The most common way to eliminate this
problem is by using hysteresis. When the two com-
parator input voltages are equal, hysteresis causes
one comparator input voltage to move quickly past
the other, thus taking the input out of the region
where oscillation occurs. Standard comparators
need external resistors for hysteresis; these resistors
are not necessary when using any of the MAX8215
and MAX8216 comparators because hysteresis is
built in.
_____________________Pin Description

Figure 1. Block Diagram
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