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X40030, X40031,

NO T R E C

OMMEND

NO R E C

OMMEND FOR NEW DESIG

E D RE P L

contact o

ACE M E N S

ur Techn

1 -8 8 8 -IN

TERSIL o ical Support Cen

r www.in

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

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

= 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

Block Diagram

V3MON

V3 MONITOR

LOGIC

V2MON

TRIP3

V2MON*

TRIP2

V2FAIL

V3FAIL

V2 MONITOR

LOGIC

SDA

DATA

COMMAND

DECODE TEST

AND CONTROL

LOGIC

FAULT DETECTION

STATUS

WATCHDOG

AND

RESET LOGIC

WDO

POWER-ON,

MANUAL RESET

LOW VOLTAGE

RESET

GENERATION

RESET

X40030/34

RESET

X40031/35

LOWLINE

SCL

(V1MON)

MONITOR

LOGIC

TRIP1

FN8114 Rev 2.00

August 25, 2008

Page 2 of 23

X40030, X40031, X40034, X40035

Ordering Information

PART NUMBER

(Note 1)

PART

MARKING

MONITORED

RANGE

TRIP1

RANGE

TRIP2

RANGE

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

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

14 Ld SOIC (150 mil)

MDP0027

14 Ld TSSOP (4.4mm) MDP0044

14 Ld SOIC (150 mil)

MDP0027

14 Ld TSSOP (4.4mm) MDP0044

14 Ld SOIC (150 mil)

(Pb-free)

14 Ld SOIC (150 mil)

(Pb-free)

MDP0027

14 Ld TSSOP (4.4mm) MDP0044

14 Ld SOIC (150 mil)

(Pb-free)

14 Ld SOIC (150 mil)

(Pb-free)

MDP0027

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

-40 to +85

0 to +70

14 Ld SOIC (150 mil)

MDP0027

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

RANGE

1.0 to 3.6

1.3 to 5.5

TRIP1

RANGE

4.6V ±50mV

TRIP2

RANGE

1.0V ±50mV

1.3V ±50mV

TRIP3

RANGE

2.9V ±50mV

3.1V ±50mV

2.9V ±50mV

TEMP.

RANGE (°C)

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

0 to +70

-40 to +85

PACKAGE

PKG.

DWG. #

14 Ld TSSOP (4.4mm) MDP0044

14 Ld SOIC (150 mil)

MDP0027

14 Ld TSSOP (4.4mm) MDP0044

14 Ld SOIC (150 mil)

(Pb-free)

14 Ld SOIC (150 mil)

(Pb-free)

MDP0027

14 Ld TSSOP (4.4mm) MDP0044

14 Ld SOIC (150 mil)

(Pb-free)

14 Ld SOIC (150 mil)

(Pb-free)

MDP0027

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

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*

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

0.95 to 1.05

TRIP3

(V)

1.70 to 4.75

1.65 to 1.75

1.70 to 4.75

3.05 to 3.15

2.85 to 2.95

RESET = X40030

RESET = X40031

RESET = X40030

RESET = X40031

POR

(SYSTEM)

Voltage monitor requires V

to operate. Others are independent of V

FN8114 Rev 2.00

August 25, 2008

Page 5 of 23