MAX6351–MAX6360
General Description
The MAX6351–MAX6360 microprocessor (μP) supervisors with multiple reset voltages significantly improve
system reliability and accuracy compared to separate ICs
or discrete components. If any input supply voltage drops
below its associated preset threshold, all reset outputs
are asserted. In addition, the outputs are valid as long as
either input supply voltage remains greater than +1.0V.
All devices in this series have an active-low debounced
manual-reset input. In addition, the MAX6358/MAX6359/
MAX6360 offer a watchdog timer input with a 46.4s startup
timeout period and a 2.9s timeout period. The MAX6355/
MAX6356/MAX6357 offer an additional voltage-monitor
input to monitor a third voltage.
The MAX6351 features two active-low, push-pull reset
outputs, one is referenced to VCC1 and the other is referenced to VCC2. The MAX6353/MAX6356/MAX6359 offer
an active-low, push-pull reset output referenced to VCC1.
The MAX6354/MAX6357/MAX6360 offer an active-low,
push-pull reset output referenced to VCC2.
All these devices are offered with a wide variety of voltage
threshold levels, as shown in the Voltage-Threshold Levels table.
They are available in 5- and 6-pin SOT23 packages and operate over the extended (-40°C to +85°C) temperature range.
Voltage Threshold Levels
PART NO.
VCC1 NOMINAL
VCC2 NOMINAL
SUFFIX
VOLTAGE
VOLTAGE
(_ _)
THRESHOLD (V)
THRESHOLD (V)
LT
4.63
3.08
LS
4.63
2.93
LR
4.63
2.63
MT
4.38
3.08
MS
4.38
2.93
MR
4.38
2.63
TZ
3.08
2.32
TY
3.08
2.19
TW
3.08
1.67
TV
3.08
1.58
SZ
2.93
2.32
SY
2.93
2.19
SW
2.93
1.67
SV
2.93
1.58
UW
2.78
1.67
UV
2.78
1.58
RW
2.63
1.67
RV
2.63
1.58
Note: Standard versions are shown in bold. Sample stock is
generally held on the standard versions only. Contact factory for
availability.
19-1508; Rev 7; 5/14
Dual/Triple-Voltage
μP Supervisory Circuits
Features
●● Precision Monitoring of Multiple +1.8V, +2.5V, +3.0V,
+3.3V, and +5V Power-Supply Voltages
●● Precision Factory-Set Power-Supply
Reset Thresholds
●● 20μA Supply Current
●● 100ms min Power-On-Reset Pulse Width
●● Debounced TTL/CMOS-Compatible
Manual-Reset Input
●● Watchdog Timer
• 46.4s Startup Timeout
• 2.9s Normal Timeout
●● Fully Guaranteed Over Temperature
●● Guaranteed RESET Valid to VCC1 = 1V or VCC2 = 1V
●● Power-Supply Transient Immunity
●● No External Components for Dual-Voltage Systems
●● Small 5- and 6-Pin SOT23 Packages
●● Low Cost
Applications
●● Computers
●● Controllers
●● Portable/BatteryPowered Equipment
●● Intelligent Instruments
●● Multivoltage Systems
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX6351_ _UT-T
-40°C to +85°C
6 SOT23
MAX6352_ _UK-T
-40°C to +85°C
5 SOT23
MAX6353_ _UK-T
-40°C to +85°C
5 SOT23
MAX6354_ _UK-T
-40°C to +85°C
5 SOT23
MAX6355_ _UT-T
-40°C to +85°C
6 SOT23
MAX6356_ _UT-T
-40°C to +85°C
6 SOT23
MAX6357_ _UT-T
-40°C to +85°C
6 SOT23
MAX6358_ _UT-T
-40°C to +85°C
6 SOT23
MAX6359_ _UT-T
-40°C to +85°C
6 SOT23
MAX6360_ _UT-T
-40°C to +85°C
6 SOT23
*The _ _ are placeholders for the threshold voltage levels of
the devices. Substitute the part number suffix in the Voltage
Threshold Levels table for the desired voltage level. All devices
are available in tape-and-reel only. There is a 2500 piece
minimum order increment for the SOT package.
Devices are available in both leaded and lead(Pb)-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Absolute Maximum Ratings
VCC1, VCC2 to GND................................................-0.3V to +6V
RST (MAX6352/MAX6355/MAX6358).....................-0.3V to +6V
RST, MR, WDI, RST1, RSTIN (MAX6351/MAX6353/
MAX6356/MAX6359)........................... -0.3V to (VCC1 + 0.3V)
RST, RST2 (MAX6351/MAX6354/
MAX6357/MAX6360)........................... -0.3V to (VCC2 + 0.3V)
Input/Output Current, All Pins..............................................20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)...........571mW
6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........695mW
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
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.
Electrical Characteristics
(VCC1 = VCC2 = +1.2V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
Supply Voltage (Note 2)
VCC1,
VCC2
Supply Current
ICC1 +
ICC2
CONDITIONS
5.5
TA = -40°C to +85°C
VCC1 = 5.5V, VCC2 = 3.6V, all I/O pins
open
1.2
5.5
MAX63_ _T_
MAX63_ _S_
MAX63_ _U_
MAX63_ _R_
MAX63_ _ _T
MAX63_ _ _S
MAX63_ _ _R
VCC2 Threshold (Note 3)
VTH2
MAX63_ _ _Z
MAX63_ _ _Y
MAX63_ _ _W
MAX63_ _ _V
www.maximintegrated.com
MAX
1.0
MAX63_ _M_
VTH1
TYP
TA = 0°C to +70°C
MAX63_ _L_
VCC1 Threshold (Note 3)
MIN
TA = +25°C
4.54
TA = +25°C
4.3
TA = -40°C to +85°C
4.5
TA = -40°C to +85°C
4.25
TA = -40°C to +85°C
3.00
TA = -40°C to +85°C
2.85
TA = -40°C to +85°C
2.70
TA = -40°C to +85°C
2.55
TA = -40°C to +85°C
3.00
TA = -40°C to +85°C
2.85
TA = -40°C to +85°C
2.55
TA = -40°C to +85°C
2.25
TA = -40°C to +85°C
2.13
TA = -40°C to +85°C
1.62
TA = -40°C to +85°C
1.53
TA = +25°C
3.03
TA = +25°C
2.88
TA = +25°C
2.74
TA = +25°C
2.58
TA = +25°C
3.03
TA = +25°C
2.88
TA = +25°C
2.58
TA = +25°C
2.28
TA = +25°C
2.16
TA = +25°C
1.64
TA = +25°C
1.55
20
50
4.63
4.72
UNITS
V
µA
4.75
4.38
4.46
4.50
3.08
3.14
3.15
2.93
2.98
V
3.00
2.78
2.82
2.85
2.63
2.68
2.70
3.08
3.14
3.15
2.93
2.98
3.00
2.63
2.68
2.70
2.32
2.35
2.38
2.19
V
2.22
2.25
1.67
1.70
1.71
1.58
1.61
1.62
Maxim Integrated │ 2
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Electrical Characteristics (continued)
(VCC1 = VCC2 = +1.2V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Reset Threshold Tempco
SYMBOL
CONDITIONS
MIN
Reset Threshold Hysteresis
VCC to Reset Delay
Reset Timeout Period
RESET Output Voltage Low
RESET Output-Voltage High
(MAX6351/MAX6353/MAX6354/
MAX6356/MAX6357/MAX6359/
MAX6360 only)
TYP
ΔVTH/°C
VOL
VOH
VCC1 > VTH1 (MAX), VCC2 > VTH2 (MAX)
UNITS
ppm/°C
VTH/500
V
20
µs
100mV overdrive
tRP
MAX
20
100
180
280
VCC1 or VCC2 ≥ 2.7V, ISINK = 1.2mA
0.3
VCC1 or VCC2 ≥ 4.5V, ISINK = 3.2mA
0.4
VCC1 or VCC2 ≥ 1V, ISINK = 50µA,
TA = 0°C to +70°C
0.3
VCC1 or VCC2 ≥ 1.2V, ISINK = 50µA;
TA = -40°C to +85°C
0.3
(_W, _V versions only),
VCC1 > VTH1(MAX),
VCC2 > VTH2(MAX)
ISOURCE = 350µA
0.8 x VCC
(_Y versions only),
VCC1 > VTH1(MAX),
VCC2 > VTH2(MAX)
ISOURCE = 500µA
0.8 x VCC
(_T, _S, _R versions only),
VCC1 > VTH1(MAX),
VCC2 > VTH2(MAX)
ISOURCE = 800µA
VCC - 1.5
ms
V
V
WATCHDOG INPUT (MAX6358/MAX6359/MAX6360)
Watchdog Timeout Period
tWD
WDI Pulse Width (Note 4)
tWDI
WDI Input Voltage (Note 5)
VIL
VIH
First timeout period after reset
25.6
46.4
72.0
After first WDI falling edge
1.6
2.9
4.5
VIL = 0.4V, VIH = 0.8 x VCC
50
VCC1 = 5V
VWDI = 0
ns
0.3 x VCC
0.65 x VCC
VWDI = VCC
WDI Input Current (Note 6)
120
-20
s
160
-15
V
µA
MANUAL RESET INPUT
MR Input Voltage
www.maximintegrated.com
VIL
MAX63_ _L_, MAX63_ _M_, VCC1 > VTH1(MAX)
VIH
MAX63_ _L_, MAX63_ _M_, VCC1 > VTH1(MAX)
VIL
MAX63_ _ _Y, VCC1 > VTH1(MAX)
VIH
MAX63_ _ _Y, VCC1 > VTH1(MAX)
0.8
2.3
0.3 x VCC
V
0.7 x VCC
Maxim Integrated │ 3
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Electrical Characteristics (continued)
(VCC1 = VCC2 = +1.2V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
32
63.5
100
kΩ
MR Pullup Resistance
MR Minimum Pulse Width
tRP
1
MR Glitch Rejection
MR to Reset Delay
tMD
µs
100
ns
0.1
µs
ADJUSTABLE RESET COMPARATOR INPUT (MAX6355/MAX6356/MAX6357)
RSTIN Input Threshold
VRSTIN
VCC1 > VTH1(MAX),
VCC2 > VTH2(MAX)
RSTIN Input Current
IRSTIN
0 < VRSTIN < VCC1 - 0.3V
TA = +25°C
1.20
TA = -40°C to +85°C
1.19
1.25
-25
25
RSTIN Hysteresis
Note
Note
Note
Note
Note
Note
1.22
1.24
2.5
V
nA
mV
1: Overtemperature limits are guaranteed by design and not production tested.
2: The reset output is guaranteed to be in the correct state if either VCC1 or VCC2 is within its specified region of operation.
3: The reset output(s) is asserted if either VCC1 or VCC2 drops below its associated trip point.
4: Guaranteed by design. Not production tested.
5: WDI is internally serviced within the watchdog timeout period if WDI is left unconnected.
6: The WDI input current is specified as the average input current when the WDI input is driven high or low.
Typical Operating Characteristics
(VCC1 = +5V, TA = +25°C, unless otherwise noted.)
4.0
15
4.0
3.5
5
-40
3.0
VTH
2.5
2.0
RESET (V)
10
0
4.5
3.5
ICC1 (VCC1 = 3.3V, VCC2 = 2.5V)
3.0
2.5
2.0
ICC2 (VCC1 = 5.0V, VCC2 = 3.3V)
1.5
1.5
ICC2 (VCC1 = 3.3V, VCC2 = 2.5V)
1.0
1.0
0.5
-15
10
35
TEMPERATURE (°C)
www.maximintegrated.com
60
85
0
RESET vs. VCC1 (VCC2 = GND)
5.0
MAX6351/60-02
MAX6351/60-01
4.5
RESET (V)
SUPPLY CURRENT (µA)
ICC1 (VCC1 = 5.0V, VCC2 = 3.3V)
RESET vs. VCC1 (VCC2 > VTH2)
5.0
MAX6351/60-03
SUPPLY CURRENT vs. TEMPERATURE
20
MAX6356L_
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCC1 (V)
0.5
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCC1 (V)
Maxim Integrated │ 4
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Typical Operating Characteristics (continued)
(VCC1 = +5V, TA = +25°C, unless otherwise noted.)
1.05
1.00
0.95
0.90
0.85
0.80
-60
-40
-20
0
20
40
60
80
100
200
150
100
DELAY FROM FALL OF VCC1
0.01
0.1
1
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
MAX6351/60-08
0
5V
RPULLUP = 100kΩ
CLOAD = 10pF
0
RESET THRESHOLD OVERDRIVE, VRST - VCC (V)
MANUAL-RESET INPUT TO
OUTPUT DELAY
5V
RST1 PUSH-PULL
OUTPUT
www.maximintegrated.com
DELAY FROM FALL OF VCC2
0
MAX6351/60-07
400ns/div
100
0
RESET THRESHOLD OVERDRIVE, VRST - VCC (V)
RST2 PUSH-PULL
OUTPUT
150
50
PULLUP CHARACTERISTICS
OPEN-DRAIN
OUTPUT
200
50
TEMPERATURE (°C)
MAX6351/60-06
250
250
RESET DELAY (µs)
1.10
RESET OCCURS ABOVE LINE
RESET DELAY vs.
RESET THRESHOLD OVERDRIVE
MAX6351/60-05
1.15
300
TRANSIENT DURATION (µs)
MAX6351/60-04
1.20
NORMALIZED PERIOD
MAXIMUM VCC TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
NORMALIZED RESET/WATCHDOG
PERIOD vs. TEMPERATURE
0
3V
0
MR
5V
0
RPULLUP = 100kΩ
OPEN-DRAIN
OUTPUT
CLOAD = 10pF
5V
0
5V
RST2 PUSH-PULL
OUTPUT
0
RST1 PUSH-PULL
OUTPUT
5V
0
40ns/div
Maxim Integrated │ 5
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Pin Description
PIN
MAX6351
MAX6352
MAX6353
MAX6354
MAX6355
MAX6356
MAX6357
MAX6358
MAX6359
MAX6360
NAME
1
—
—
—
RST1
Active-Low, CMOS Reset Output Referenced to VCC1
DESCRIPTION
—
1
1
1
RST
Active-Low Reset Output. Open drain for the MAX6352/
MAX6355/MAX6358, push-pull with respect to VCC1 for
the MAX6353/MAX6356/MAX6359, and push-pull with
respect to VCC2 for the MAX6354/MAX6357/MAX6360.
2
2
2
2
GND
Ground
Manual-Reset Input. Pull low to force a reset. RST,
RST1, and RST2 remain active as long as MR is low
and for the timeout period after MR goes high.
Leave unconnected or connect to VCC1 if unused.
VMR must not exceed VCC1.
3
3
3
3
MR
4
4
4
4
VCC2
Supply Input. Powers the device when it is above
VCC1 and monitors its own voltage.
5
—
—
—
RST2
Active-Low, CMOS Reset Output Referenced to VCC2
RSTIN
Undervoltage-Reset Comparator Input. Asserts reset when
the monitored voltage falls below 1.22V. Set the reset
threshold with an external resistive divider. Connect to VCC1
if unused. VRSTIN must not exceed VCC1.
—
—
5
—
—
—
—
5
WDI
Watchdog Input. If WDI remains either high or low longer than
the timeout period, then reset is triggered. The timer clears
when reset is asserted or whenever WDI sees a rising or
falling edge. Leave unconnected to disable if unused.
6
5
6
6
VCC1
Supply Input. Powers the device when it is above VCC2 and
monitors its own voltage.
www.maximintegrated.com
Maxim Integrated │ 6
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Detailed Description
Reset Outputs
Supply Voltages
The MAX6351–MAX6360 microprocessor (μP) supervisory circuits maintain system integrity by alerting the
μP to fault conditions. These ICs monitor multiple-supply
systems. The output reset state is guaranteed to remain
viable while either VCC1 or VCC2 is above +1V.
Threshold Levels
All the possible input voltage threshold-level combinations are indicated by a two-letter code in the Voltage
Threshold Levels table.
3
MR
GLITCH
FILTER
(5) 6 VCC1
RST (1)
4 VCC2
VTH2
RST2 (5)
RST1 (1)
The MAX6355/MAX6356/MAX6357 provide an additional
input to monitor a third voltage. The threshold voltage at
RSTIN is typically 1.22V. To monitor a voltage higher than
1.22V, connect a resistive divider to the circuit, as shown
in Figure 2. The threshold at VEXT is:
R1 + R2
VEXT_TH = 1.22V
R2
Watchdog Input
(MAX6358/MAX6359/MAX6360)
The MAX6358/MAX6359/MAX6360 include a dual-mode
watchdog timer to monitor μP activity. The flexible timeout
architecture provides a startup mode, allowing complicated systems to complete lengthy boots, and a normal
mode, allowing the supervisor to provide quick alerts
when processor activity fails.
1.22V
(WDI)
The MAX6351–MAX6360 are designed to ignore short
negative-going VCC1 and VCC2 transients. See the
Maximum VCC Transient Duration vs. Reset Threshold
Overdrive graph in the Typical Operating Characteristics.
Note that RSTIN is powered by VCC1, and its voltage
must therefore remain lower than or equal to VCC1.
(5) (RSTIN)
(5)
Negative-Going VCC Transients
Third Input Voltage
(MAX6355/MAX6356/MAX6357)
VTH1
RESET
GENERATOR
The MAX6351 provides two active-low, push-pull reset
outputs, one corresponding to each of its two monitored voltages. The MAX6353/MAX6356/MAX6359 have
an active-low, push-pull reset output that is referenced
to VCC1. The MAX6354/MAX6357/MAX6360 have an
active-low, push-pull reset output that is referenced to
VCC2. The MAX6352/MAX6355/MAX6358 provide an
active-low open-drain reset. The reset outputs are maintained as long as at least one of the supplies is above +1V.
WATCHDOG
TIMER
VEXT
MAX6355
MAX6356
MAX6357
R1
2
RSTIN
GND
MAX6351–MAX6360
NOTE: PIN 1 IS RST1 FOR THE MAX6351 AND RST FOR THE
MAX6352–MAX6360. PIN 5 IS RST2 FOR THE MAX6351, RSTIN
FOR THE MAX6355/MAX6356/MAX6357, WDI FOR THE MAX6358/
MAX6359/MAX6360, AND VCC1 FOR THE MAX6352/MAX6353/MAX6354.
Figure 1. Functional Diagram
www.maximintegrated.com
R2
VCC1 ≥ VRSTIN
Figure 2. Monitoring a Third Voltage
Maxim Integrated │ 7
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
During the normal operating mode, the supervisor issues
a reset pulse for the reset timeout period (140ms min) if
the μP does not update the WDI with a valid transition
(high to low or low to high) within the standard timeout
period (1.6s min).
VCC2
VCC1
After each reset event (VCC power-up, manual reset, or
watchdog reset), there is an initial watchdog startup timeout period of 25.6s. The startup mode provides an extended period for the system to power up and fully initialize all
μP and system components before assuming responsibility for routine watchdog updates. The normal watchdog
timeout period (1.6s min) begins at the conclusion of the
startup timeout period or after the first transition on WDI
before the conclusion of the startup period (Figure 3).
Applications Information
Ensuring a Valid RESET Output
Down to VCC = 0
In some systems, it is necessary to ensure a valid reset
even if VCC falls to 0. In these applications, use the
circuit shown in Figure 4. Note that this configuration does
not work for the open-drain outputs of the MAX6352/
MAX6355/MAX6358.
Interfacing to μPs with
Bidirectional Reset Pins
Microprocessors with bidirectional reset pins contend with
the push-pull outputs of these devices. To prevent this,
connect a 4.7kΩ resistor between RESET and the μP’s
reset I/O port, as shown in Figure 5. Buffer RESET, as
shown in the figure, if this reset is used by other components in the system.
RST
VCC1
RST2
RST1
VCC2
100kΩ
MAX6351 MAX6356
MAX6353 MAX6357
MAX6354 MAX6359
MAX6360
GND
Figure 4. Ensuring a Valid Reset Low to VCC1 and VCC2 = 0
BUFFERED RESET TO OTHER SYSTEM COMPONENTS
VCC2 VCC1
VCC1
VCC2
RST
RST2
RST1
µP
4.7kΩ
RESET
MAX6351–MAX6360
GND
GND
VTH
VCC
WDI
tWDI-NORMAL
1.6s MAX
Figure 5. Interfacing to μPs with Bidirectional Reset I/O
tWDI-STARTUP
25.6s MAX
1.6s
MAX
RESET
140ms
Figure 3. Normal Watchdog Startup Sequence
www.maximintegrated.com
Maxim Integrated │ 8
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Pin Configurations
TOP VIEW
RST1 1
GND 2
MAX6351
MR 3
6
VCC1
RST* 1
5
RST2
GND 2
4
VCC2
MR 3
GND 2
MAX6355
MAX6356
MAX6357
MR 3
VCC1
MAX6352
MAX6353
MAX6354
*MAX6352: OPEN-DRAIN OUTPUT
*MAX6353: PUSH-PULL OUTPUT (VCC1)
*MAX6354: PUSH-PULL OUTPUT (VCC2)
4
VCC2
6
VCC1
5
WDI
4
VCC2
5 SOT23
6 SOT23
RST* 1
5
6
VCC1
RST* 1
5
RSTIN *MAX6355: OPEN-DRAIN OUTPUT
*MAX6356: PUSH-PULL OUTPUT (VCC1)
*MAX6357: PUSH-PULL OUTPUT (VCC2)
GND 2
4
VCC2
MAX6358
MAX6359
MAX6360
MR 3
6 SOT23
*MAX6358: OPEN-DRAIN OUTPUT
*MAX6359: PUSH-PULL OUTPUT (VCC1)
*MAX6360: PUSH-PULL OUTPUT (VCC2)
6 SOT23
Selector Guide
PART
PIN
COUNT
NUMBER OF
SUPPLIES
MONITORED
MAX6351
6
2
MAX6352
5
2
MAX6353
5
2
ü
MAX6354
5
2
MAX6355
6
3
MAX6356
6
MAX6357
6
MAX6358
RST2
OPEN-DRAIN
RESET
WATCHDOG
TIMER
MANUAL
RESET
ü
ü
—
—
ü
—
—
ü
—
ü
—
—
—
ü
—
ü
—
—
ü
—
—
ü
—
ü
3
ü
—
—
—
ü
3
—
ü
—
—
ü
6
2
—
—
ü
ü
ü
MAX6359
6
2
ü
—
—
ü
ü
MAX6360
6
2
—
ü
—
ü
ü
www.maximintegrated.com
RST1
Maxim Integrated │ 9
MAX6351–MAX6360
Chip Information
PROCESS: BiCMOS
www.maximintegrated.com
Dual/Triple-Voltage
μP Supervisory Circuits
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
5 SOT23
U5-1
21-0057
90-0174
6 SOT23
U6-1
21-0058
90-0175
Maxim Integrated │ 10
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Revision History
REVISION
NUMBER
REVISION
DATE
7
5/14
PAGES
CHANGED
DESCRIPTION
Changed the minimum value for the WDI input voltage spec in the Electrical
Characteristics table on page 3; rebranded data sheet
1–11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2014 Maxim Integrated Products, Inc. │ 11