廬
X40410, X40411, X40414, X40415
4kbit EEPROM
Data Sheet
March 28, 2005
FN8116.0
Dual Voltage Monitor with Integrated CPU
Supervisor
FEATURES
鈥?Dual voltage detection and reset assertion
鈥擲tandard reset threshold settings
See Selection table on page 2.
鈥擜djust low voltage reset threshold voltages
using special programming sequence
鈥擱eset signal valid to V
CC
= 1V
鈥擬onitor three voltages or detect power fail
鈥?Independent Core Voltage Monitor (V2MON)
鈥?Fault detection register
鈥?Selectable power-on reset timeout (0.05s,
0.2s, 0.4s, 0.8s)
鈥?Selectable watchdog timer interval (25ms,
200ms,1.4s, off)
鈥?Low power CMOS
鈥?5碌A typical standby current, watchdog on
鈥?碌A typical standby current, watchdog off
鈥?4Kbits of EEPROM
鈥?6 byte page write mode
鈥?ms write cycle time (typical)
鈥?Built-in inadvertent write protection
鈥擯ower-up/power-down protection circuitry
鈥擝lock lock protect none or 1/2 of EEPROM
鈥?400kHz 2-wire interface
鈥?2.7V to 5.5V power supply operation
BLOCK DIAGRAM
鈥?Available packages
鈥?-lead SOIC, TSSOP
鈥?Monitor Voltages: 5V to 0.9V
鈥?Memory Security
鈥?Independent Core Voltage Monitor
APPLICATIONS
鈥?Communication Equipment
鈥擱outers, Hubs, Switches
鈥擠isk Arrays, Network Storage
鈥?Industrial Systems
鈥擯rocess Control
鈥擨ntelligent Instrumentation
鈥?Computer Systems
鈥擟omputers
鈥擭etwork Servers
DESCRIPTION
The X40410/11/14/15 combines power-on reset con-
trol, watchdog timer, supply voltage supervision, and
secondary voltage supervision, and Block Lock
鈩?/div>
pro-
tect serial EEPROM in one package. This combination
lowers system cost, reduces board space require-
ments, and increases reliability.
Applying voltage to VCC activates the power-on reset
circuit which holds RESET/RESET active for a period of
time. This allows the power supply and system oscilla-
SDA
Data
Register
Command
Decode Test
& Control
Logic
Threshold
Reset Logic
Fault Detection
Register
Status
Register
EEPROM
Array
Watchdog Timer
and
Reset Logic
WDO
SCL
V
CC
(V1MON)
+
User Programmable
V
TRIP1
User Programmable
V
TRIP2
-
+
-
V
CC
or
V2MON
Power-on,
Low Voltage
Reset
Generation
RESET
X40410/14
RESET
X40411/15
V2MON
V2FAIL
*X40410/11= V2MON*
X40414/15 = V
CC
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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