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TPS3305 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS3305 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 18 page 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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