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X40410 Datasheet, PDF (1/24 Pages) Intersil Corporation – Dual Voltage Monitor with Intergrated CPU Supervisor | |||
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Data Sheet
X40410, X40411, X40414, X40415
4kbit EEPROM
March 28, 2005
FN8116.0
Dual Voltage Monitor with Integrated CPU
Supervisor
FEATURES
⢠Dual voltage detection and reset assertion
âStandard reset threshold settings
See Selection table on page 2.
âAdjust low voltage reset threshold voltages
using special programming sequence
âReset signal valid to VCC = 1V
âMonitor three voltages or detect power fail
⢠Independent Core Voltage Monitor (V2MON)
⢠Fault detection register
⢠Selectable power-on reset timeout (0.05s,
0.2s, 0.4s, 0.8s)
⢠Selectable watchdog timer interval (25ms,
200ms,1.4s, off)
⢠Low power CMOS
â25µA typical standby current, watchdog on
â6µA typical standby current, watchdog off
⢠4Kbits of EEPROM
â16 byte page write mode
â5ms write cycle time (typical)
⢠Built-in inadvertent write protection
âPower-up/power-down protection circuitry
âBlock lock protect none or 1/2 of EEPROM
⢠400kHz 2-wire interface
⢠2.7V to 5.5V power supply operation
BLOCK DIAGRAM
⢠Available packages
â8-lead SOIC, TSSOP
⢠Monitor Voltages: 5V to 0.9V
⢠Memory Security
⢠Independent Core Voltage Monitor
APPLICATIONS
⢠Communication Equipment
âRouters, Hubs, Switches
âDisk Arrays, Network Storage
⢠Industrial Systems
âProcess Control
âIntelligent Instrumentation
⢠Computer Systems
â Computers
âNetwork 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⢠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
SCL
VCC
(V1MON)
V2MON
Data
Register
Command
Decode Test
& Control
Logic
Threshold
Reset Logic
Fault Detection
Register
Status
Register
EEPROM
Array
Watchdog Timer
and
Reset Logic
User Programmable
VTRIP1
User Programmable
VTRIP2
+
-
VCC or
+ V2MON
Power-on,
Low Voltage
Reset
Generation
-
*X40410/11= V2MON*
X40414/15 = VCC
WDO
RESET
X40410/14
RESET
X40411/15
V2FAIL
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | 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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