X40030, X40031,
NO T R E C
OMMEND
ED
NO R E C
OMMEND FOR NEW DESIG
N
E D RE P L
contact o
ACE M E N S
ur Techn
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1 -8 8 8 -IN
TERSIL o ical Support Cen
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tersil.com r at
/tsc
X40034, X40035
DATASHEET
FN8114
Rev 2.00
August 25, 2008
Triple Voltage Monitor with Integrated CPU Supervisor
The X40030, X40031, X40034, X40035 combine power-on
reset control, watchdog timer, supply voltage supervision,
second and third voltage supervision, and manual reset, in one
package. This combination lowers system cost, reduces board
space requirements, and increases reliability.
Applying voltage to V
CC
activates the power-on reset circuit,
which holds RESET/RESET active for a period of time. This
allows the power supply and system oscillator to stabilize
before the processor can execute code.
Low VCC detection circuitry protects the user’s system from
low voltage conditions, resetting the system when VCC falls
below the minimum VTRIP1 point. RESET/RESET is active
until VCC returns to proper operating level and stabilizes. A
second and third voltage monitor circuit tracks the unregulated
supply to provide a power fail warning or monitors different
power supply voltage. Three common low voltage
combinations are available, however, Intersil’s unique circuits
allows the threshold for either voltage monitor to be
reprogrammed to meet specific system level requirements or to
fine-tune the threshold for applications requiring higher
precision.
Features
• Triple voltage detection and reset assertion
- Standard reset threshold settings; see Table 1 on
page 5.
- Adjust low voltage reset threshold voltages using
special programming sequence
- Reset signal valid to V
CC
= 1V
- Monitor three separate voltages
• Fault detection register
• Selectable power-on reset time-out (0.05s, 0.2s, 0.4s,
0.8s)
• Selectable watchdog timer interval (25ms, 200ms, 1.4s or
off)
• Debounced manual reset input
• Low power CMOS
- 25µA typical standby current, watchdog on
- 6µA typical standby current, watchdog off
• 400kHz 2-wire interface
• 2.7V to 5.5V power supply operation
• Available in 14 Ld SOIC and 14 Ld TSSOP packages
• Monitor voltages: 5V to 0.9V
• Independent core voltage monitor
• Pb-free available (RoHS compliant)
Applications
• Communication equipment
- Routers, hubs, switches
- Disk arrays, network storage
• Industrial systems
- Process control
- Intelligent instrumentation
• Computer systems
- Computers
- Network servers
FN8114 Rev 2.00
August 25, 2008
Page 1 of 23
X40030, X40031, X40034, X40035
Ordering Information
PART NUMBER
(Note 1)
PART
MARKING
MONITORED
V
CC
RANGE
V
TRIP1
RANGE
V
TRIP2
RANGE
V
TRIP3
RANGE
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
PART NUMBER WITH RESET
X40034S14-A
X40034S14-B
X40034S14-C
X40034S14I-A
X40034S14I-B
X40034S14I-C
X40034V14-A
X40034V14-B
X40034V14-C
X40034V14I-A
X40034V14I-B
X40034V14I-C
X40030S14-C
X40030S14I-C
X40030V14-C
X40030V14I-C
X40030S14-B
X40030S14Z-B
(Note 2)
X40030S14I-B
X40030S14IZ-B
(Note 2)
X40030V14-B
X40030V14I-B
X40030S14-A
X40030S14Z-A
(Note 2)
X40030S14I-A
X40030S14IZ-A
(Note 2)
X40030V14-A
X40030V14I-A
X40034S A
X40034S B
X40034S C
X40034S IA
X40034S IB
X40034S IC
X4003 4VA
X4003 4VB
X4003 4VC
X4003 4VIA
X4003 4VIB
X4003 4VIC
X40030S C
X40030S IC
X4003 0VC
X4003 0VIC
X40030S B
X40030S ZB
X40030S IB
X40030S ZIB
X4003 0VB
X4003 0VIB
X40030S A
X40030S ZA
X40030S IA
X40030S ZIA
X4003 0VA
X4003 0VIA
4.6V ±50mV
2.9V ±50mV
1.7 to 5.5
4.4V ±50mV
2.6V ±50mV
1.8V ±50mV
1.0 to 3.6
1.7 to 3.6
2.9V ±50mV
1.0V ±50mV
2.2V ±50mV
2.6V ±50mV
1.0 to 3.6
1.3 to 5.5
1.0V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
1.0 to 3.6
1.3 to 5.5
1.0V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
1.0 to 3.6
1.3 to 5.5
1.0V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
1.3 to 5.5
4.6V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
0 to +70
0 to +70
0 to +70
-40 to +85
-40 to +85
-40 to +85
0 to +70
0 to +70
0 to +70
-40 to +85
-40 to +85
-40 to +85
0 to +70
-40 to +85
0 to +70
-40 to +85
0 to +70
0 to +70
-40 to +85
-40 to +85
0 to +70
-40 to +85
0 to +70
0 to +70
-40 to +85
-40 to +85
0 to +70
-40 to +85
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
MDP0027
MDP0027
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
MDP0027
MDP0027
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
PART NUMBER WITH RESET
X40035S14-A
X40035S14-B
X40035S14-C
X40035S14I-A
X40035S14I-B
X40035S14I-C
X40035V14-A
X40035V14-B
X40035S A
X40035S B
X40035S C
X40035S IA
X40035S IB
X40035S IC
X4003 5VA
X4003 5VB
1.0 to 3.6
1.3 to 5.5
1.0V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
1.0 to 3.6
1.3 to 5.5
1.0V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
1.3 to 5.5
4.6V ±50mV
1.3V ±50mV
3.1V ±50mV
2.9V ±50mV
0 to +70
0 to +70
0 to +70
-40 to +85
-40 to +85
-40 to +85
0 to +70
0 to +70
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
FN8114 Rev 2.00
August 25, 2008
Page 3 of 23
X40030, X40031, X40034, X40035
Ordering Information
(Continued)
PART NUMBER
(Note 1)
X40035V14-C
X40035V14I-A
X40035V14I-B
X40035V14I-C
X40031S14-C
X40031S14I-C
X40031V14-C
X40031V14I-C
X40031S14-B
X40031S14Z-B
(Note 2)
X40031S14I-B
X40031S14IZ-B
(Note 2)
X40031V14-B
X40031V14I-B
X40031S14-A
X40031S14Z-A
(Note 2)
X40031S14I-A
X40031S14IZ-A
(Note 2)
X40031V14-A
X40031V14I-A
NOTES:
1. Add “T1” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-
020.
PART
MARKING
X4003 5VC
X4003 5VIA
X4003 5VIB
X4003 5VIC
X40031S C
X40031S IC
X4003 1VC
X4003 1VIC
X40031S B
X40031S ZB
X40031S IB
X40031S ZIB
X4003 1VB
X4003 1VIB
X40031S A
X40031S ZA
X40031S IA
X40031S ZIA
X4003 1VA
X4003 1VIA
4.6V ±50mV
2.9V ±50mV
1.7 to 5.5
4.4V ±50mV
2.6V ±50mV
1.8V ±50mV
1.0 to 3.6
1.7 to 3.6
2.9V ±50mV
1.0V ±50mV
2.2V ±50mV
2.6V ±50mV
MONITORED
V
CC
RANGE
1.0 to 3.6
1.3 to 5.5
V
TRIP1
RANGE
4.6V ±50mV
V
TRIP2
RANGE
1.0V ±50mV
1.3V ±50mV
V
TRIP3
RANGE
2.9V ±50mV
3.1V ±50mV
2.9V ±50mV
TEMP.
RANGE (°C)
0 to +70
-40 to +85
-40 to +85
-40 to +85
0 to +70
-40 to +85
0 to +70
-40 to +85
0 to +70
0 to +70
-40 to +85
-40 to +85
0 to +70
-40 to +85
0 to +70
0 to +70
-40 to +85
-40 to +85
0 to +70
-40 to +85
PACKAGE
PKG.
DWG. #
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
MDP0027
MDP0027
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
14 Ld SOIC (150 mil)
14 Ld SOIC (150 mil)
(Pb-free)
MDP0027
MDP0027
MDP0027
MDP0027
14 Ld TSSOP (4.4mm) MDP0044
14 Ld TSSOP (4.4mm) MDP0044
FN8114 Rev 2.00
August 25, 2008
Page 4 of 23
X40030, X40031, X40034, X40035
A manual reset input provides debounce circuitry for minimum
reset component count.
The Watchdog Timer provides an independent protection
mechanism for microcontrollers. When the microcontroller fails
to restart a timer within a selectable time out interval, the
device activates the WDO signal. The user selects the interval
from three preset values. Once selected, the interval does not
change, even after cycling the power.
TABLE 1. SELECTION TABLE
DEVICE
X40030, X40031
X40030A, X40031A
X40030B, X40031B
X40030C, X40031C
X40034, X40035
X40034A, X40035A
X40034B, X40035B
X40034C, X40035C
5V; 3.3V; 1.5V
5V; 3V or 3.3V; 1.5V
5V; 3V or 3.3V; 1.2V
5V; 3V or 3.3V; 1.8V
5V; 3V; 1.8V
3.3V; 2.5V; 1.8V
EXPECTED SYSTEM
VOLTAGES
V
TRIP1
(V)
2.0 to 4.75*
4.55 to 4.65*
4.35 to 4.45*
2.95 to 3.05*
2.0 to 4.75*
4.55 to 4.65*
4.55 to 4.65*
4.55 to 4.65*
V
TRIP2
(V)
1.70 to 4.75
2.85 to 2.95
2.55 to 2.65
2.15 to 2.25
0.90 to 3.50
1.25 to 1.35
1.25 to 1.35
0.95 to 1.05
V
TRIP3
(V)
1.70 to 4.75
1.65 to 1.75
1.65 to 1.75
1.65 to 1.75
1.70 to 4.75
3.05 to 3.15
2.85 to 2.95
2.85 to 2.95
RESET = X40030
RESET = X40031
RESET = X40030
RESET = X40031
POR
(SYSTEM)
*
Voltage monitor requires V
CC
to operate. Others are independent of V
CC
FN8114 Rev 2.00
August 25, 2008
Page 5 of 23
Microcontroller MCU
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