X40430S14I-B Intersil, X40430S14I-B Datasheet

IC VOLT MON TRPL EEPROM 14-SOIC

X40430S14I-B

Manufacturer Part Number
X40430S14I-B
Description
IC VOLT MON TRPL EEPROM 14-SOIC
Manufacturer
Intersil
Type
Multi-Voltage Supervisorr
Datasheet

Specifications of X40430S14I-B

Number Of Voltages Monitored
3
Output
Open Drain, Push-Pull
Reset
Active High/Active Low
Reset Timeout
Adjustable/Selectable
Voltage - Threshold
1.7V, 2.6V, 4.4V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
X40430S14I-B
Manufacturer:
Intersil
Quantity:
96
Triple Voltage Monitor with Integrated
CPU Supervisor
FEATURES
• Monitoring voltages: 5V to 9V
• Independent core voltage monitor
• Triple voltage detection and reset assertion
• Fault detection register
• Selectable power-on reset timeout
• Selectable watchdog timer interval
• Debounced manual reset input
• Low power CMOS
• Memory security
• 4Kbits of EEPROM
• Built-in inadvertent write protection
• 400kHz 2-wire interface
• 2.7V to 5.5V power supply operation
• Available packages
• Pb-free plus anneal available (RoHS compliant)
APPLICATIONS
• Communication equipment
• Industrial systems
• Computer systems
—Standard reset threshold settings. See selec-
—Adjust low voltage reset threshold voltages
—Reset signal valid to V
—Monitor three separate voltages
(0.05s, 0.2s, 0.4s, 0.8s)
(25ms, 200ms, 1.4s or off)
—25µA typical standby current, watchdog on
—6µA typical standby current, watchdog off
—16 byte page write mode
—5ms write cycle time (typical)
—Power-up/power-down protection circuitry
—Block lock protect 0, or 1/2, of EEPROM
—14 Ld SOIC, TSSOP
—Routers, hubs, switches
—Disk arrays, network storage
—Process control
—Intelligent instrumentation
—Computers
—Network servers
tion table on page 2.
using special programming sequence
®
1
CC
= 1V
Data Sheet
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
X40430, X40431, X40434, X40435
DESCRIPTION
The X40430, X40431, X40434, X40435 combines
power-on reset control, watchdog timer, supply voltage
supervision, second and third voltage supervision,
manual reset, and Block Lock
in one package. This combination lowers system cost,
reduces board space requirements, and increases
reliability.
Applying voltage to V
circuit which holds RESET/RESET active for a period of
time. This allows the power supply and system oscilla-
tor to stabilize before the processor can execute code.
Low V
from low voltage conditions, resetting the system
when V
RESET/RESET is active until V
operating level and stabilizes. A second and third volt-
age 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 applica-
tions requiring higher precision.
A manual reset input provides debounce circuitry for
minimum reset component count.
The Watchdog Timer provides an independent protec-
tion mechanism for microcontrollers. When the micro-
controller 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.
The memory portion of the device is a CMOS Serial
EEPROM array with Intersil’s Block Lock protection.
The array is internally organized as x 8. The device
features a 2-wire interface and software protocol
allowing operation on an I
The device utilizes Intersil’s proprietary Direct Write
cell, providing a minimum endurance of 100,000
cycles and a minimum data retention of 100 years.
CC
All other trademarks mentioned are the property of their respective owners.
CC
May 24, 2006
detection circuitry protects the user’s system
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
falls below the minimum V
Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved
CC
activates the power-on reset
2
C bus.
4Kbit EEPROM
protect serial EEPROM
CC
returns to proper
FN8251.1
TRIP1
point.

Related parts for X40430S14I-B

X40430S14I-B Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005-2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. 4Kbit EEPROM FN8251.1 ™ ...

Page 2

BLOCK DIAGRAM V3MON V2MON Data SDA Register WP Command Decode Test & Control Logic SCL V CC (V1MON) *X40430, X40431= V2MON X40434, X40435 = V CC Expected System Device Voltages X40430, X40431 -A 5V 3.3V; 1.8V -B 5V; ...

Page 3

... PART NUMBER WITH RESET X40430S14-C X40430S C 1.7 to 3.6 X40430S14I-C X40430S IC X40430V14-C X4043 0VC X40430V14I-C X4043 0VIC X40430S14-B X40430S B 1.7 to 5.5 X40430S14Z-B X40430S ZB (Note) X40430S14I-B X40430S IB X40430S14IZ-B X40430S ZIB (Note) X40430V14-B X4043 0VB X40430V14Z-B X40430V ZB (Note) X40430V14I-B X4043 0VIB X40430V14IZ-B X40430V ZIB (Note) X40434S14-C X40434S C 1 ...

Page 4

... X40434V14Z-A X40434V ZA (Note) X40434V14I-A X40434V IA X40434V14IZ-A X40434VZIA (Note) X40430S14-A X40430S A 1.7 to 5.5 X40430S14Z-A X40430S ZA (Note) X40430S14I-A X40430S IA X40430S14IZ-A X40430S ZIA (Note) X40430V14-A X4043 0VA X40430V14Z-A X40430V ZA (Note) X40430V14I-A X4043 0VIA X40430V14IZ-AT1 X4043 0VZIA (Note) PART NUMBER WITH RESET X40431S14-C X40431S C 1.7 to 3.6 ...

Page 5

... NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are 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. ...

Page 6

PIN CONFIGURATION X40430, X40434 14 Ld SOIC, TSSOP V2FAIL 1 V2MON 2 LOWLINE RESET PIN DESCRIPTION Pin Name 1 V2FAIL V2 Voltage Fail Output. This open drain output goes LOW when ...

Page 7

PRINCIPLES OF OPERATION Power-on Reset Applying power to the X40430, X40431, X40434, X40435 activates a Power-on Reset Circuit that pulls the RESET/RESET pins active. This signal provides several benefits. – It prevents the system microprocessor from starting to operate with ...

Page 8

Figure 2. Two Uses of Multiple Voltage Monitoring X40431 RESET 6-10V CC V2FAIL 3.3V V2MON 1M V3MON (1.7V) V3FAIL 390K Notice: No external components required to monitor three voltages. Figure 3. V Set/Reset Conditions TRIPX ...

Page 9

Setting a V Voltage ( TRIPx There are two procedures used to set the threshold voltages (V ), depending if the threshold voltage TRIPx to be stored is higher or lower than the present value. For ...

Page 10

Figure 5. Sample V Reset Circuit TRIP V2FAIL V TRIP1 Adj. V TRIP2 Adj. Figure 6. V Set/Reset Sequence ( TRIPX New V applied = X Old V applied + | Error | X Error < ...

Page 11

Once set, WEL remains set until either it is reset to 0 (by writing a “0” to the WEL bit and zeroes to the other bits of the control register) or until the part powers up again. Writes to the ...

Page 12

Figure 7. Valid Data Changes on the SDA Bus SCL SDA At power-up, the FDR is defaulted to all “0”. The sys- tem needs to initialize this register to all “1” before the actual monitoring can take place. In the ...

Page 13

Serial Acknowledge Acknowledge is a software convention used to indi- cate successful data transfer. The transmitting device, either master or slave, will release the bus after trans- mitting eight bits. During the ninth clock cycle, the receiver will pull the ...

Page 14

Page Write The device is capable of a page write operation initiated in the same manner as the byte write opera- tion; but instead of terminating the write cycle after the first data byte is transferred, the master ...

Page 15

Current Address Read Internally the device contains an address counter that maintains the address of the last word read incre- mented by one. Therefore, if the last read was to address n, the next read operation would access data from ...

Page 16

SERIAL DEVICE ADDRESSING Memory Address Map CR, Control Register, CR7: CR0 Address: 1FF hex FDR, Fault DetectionRegister, FDR7: FDR0 Address: 0FF hex General Purpose Memory Organization, A8:A0 Address: 000h to 1FFh General Purpose Memory Array Configuration Memory Address A8:A0 000h ...

Page 17

Figure 16. Random Address Read Sequence S t Signals from a the Master r t SDA Bus Signals from the Slave Figure 17. Sequential Read Sequence Slave Signals from Address the Master SDA Bus ...

Page 18

ABSOLUTE MAXIMUM RATINGS Temperature under bias .................... -65°C to +135°C Storage temperature ......................... -65°C to +150°C Voltage on any pin with respect to V ...................................... -1.0V to +7V SS D.C. output current ............................................... 5mA Lead temperature (soldering, 10s) .................... 300°C ...

Page 19

D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified) Symbol Parameter V Supply CC ( Trip Point Voltage Range CC TRIP1 Second Supply Monitor I V2MON Current V2 (5) V V2MON Trip Point Voltage Range TRIP2 ...

Page 20

EQUIVALENT A.C. OUTPUT LOAD CIRCUIT FOR 4.6kΩ 2.06kΩ RESET SDA WDO 30pF 30pF A.C. TEST CONDITIONS V Input pulse levels Input rise and fall times 10ns V Input and output timing levels Output ...

Page 21

TIMING DIAGRAMS Bus Timing t F SCL t SU:STA t HD:STA SDA IN SDA OUT WP Pin Timing START SCL SDA IN t SU:WP WP Write Cycle Timing SCL SDA th 8 Bit of Last Byte Nonvolatile Write Cycle Timing ...

Page 22

Power Fail Timings TRIPX [ ] V CC V2MON or V3MON [ ] LOWLINE or V2FAIL or V3FAIL RESET/RESET/MR Timings V TRIP1 PURST t R RESET V RVALID RESET MR ...

Page 23

LOW VOLTAGE AND WATCHDOG TIMINGS PARAMETERS (@25°C, V Symbol t Pulse width for MR in1 t Watchdog Timer Period: WDO WD1 = 0, WD0 = 0 WD1 = 0, WD0 = 1 WD1 = 1, WD0 = 0 WD1 = ...

Page 24

V Set/Reset Conditions TRIPX (V TRIPX t TSU WDO t VPS SCL 0 SDA A0h Start Programming Specifications: V TRIP1 TRIP2 TRIP3 Parameter t WDO Program Voltage Setup time VPS t WDO Program Voltage Hold ...

Page 25

Small Outline Package Family (SO PIN #1 I.D. MARK 0.010 SEATING PLANE 0.004 C 0.010 MDP0027 SMALL OUTLINE PACKAGE FAMILY (SO) SYMBOL SO-8 SO-14 ...

Page 26

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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