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TPS3305 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS3305
Description  DUAL PROCESSOR SUPERVISORS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS3305 Datasheet(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
SENSE1
SENSE2
WDI
GND
V
DD
MR
RESET
RESET
DORDGNPACKAGE
(TOPVIEW)
5V
External
Reset
Source
V
DD
V
I/O
V
CORE
V
IN
V
IN
V
OUT
V
OUT
MR
RESET
RESET
WDI
WDO
GND
GND
GND
GND
SENSE1
SENSE2
TPS3305-18
TPS73233
TPS73618
3.3V
1.8V
DSP
TPS3305
SLVS198C – DECEMBER 1998 – REVISED MARCH 2008
www.ti.com
DUAL PROCESSOR SUPERVISORS
2
• Dual Supervisory Circuits for DSP- and
The TPS3305 family is a series of micropower supply
Processor-Based Systems
voltage supervisors designed for circuit initialization.
Its dual monitor topology is well-suited to use in DSP
• Power-On Reset Generator with Fixed Delay
and processor-based systems, which often require
Time of 200ms; no External Capacitor Needed
two supply voltages, core and I/O.
• Watchdog Timer Retriggers the RESET Output
RESET is asserted when the voltage at either
at SENSEn
≥ VIT+
SENSEn pin falls below its threshold voltage, VIT.
• Temperature-Compensated Voltage Reference
When both SENSEn pins are again above their
• Maximum Supply Current of 40µA
respective threshold voltages, RESET is held low for
the factory-programmed delay time (200ms typ).
• Supply Voltage Range: 2.7V to 6V
RESET is also asserted if the watchdog input (WDI)
• Defined RESET Output From V
DD ≥ 1.1V
is not toggled for more than 1.6s typ.
• MSOP-8 and SO-8 Packages
The TPS3305-xx devices are available in either 8-pin
• Temperature Range: –40°C to +85°C
MSOP or SO packages, and are specified for
operation over a temperature range of –40
°C to
+85
°C.
• Processor Supply Monitoring
• Industrial Equipment
• Automotive Systems
• Portable/Battery-Powered Equipment
• Wireless Communication Systems
• Notebook/Desktop Computers
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 1998–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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