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TS3V340RGYR

TS3V340RGYR资料
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File Size : 116 KB Manufacturer:TI Description:The RAMified Timekeeper provides full functional capability when VCC is greater than 4.5 volts and write-protects the register contents at 4.25 volts typical. Data is maintained in the absence of VCC without any additional support circuitry. The DS1386 constantly monitors VCC. Should the supply voltage decay, the RAMified Timekeeper will automatically write-protect itself and all inputs to the registers become dont care. The two interrupts INTA and INTB (INTB) and the internal clock and timers continue to run regardless of the level of VCC. However, it is important to insure that the pull-up resistors used with the interrupt pins are never pulled up to a value that is greater than VCC + 0.3V. As VCC falls below approximately 3.0 volts, a power switching circuit turns the internal lithium energy source on to maintain the clock and timer data and functionality. It is also required to insure that during this time (battery backup mode), the voltage present at INTA and INTB (INTB) never exceeds 3.0V. During power-up, when VCC rises above approximately 3.0 volts, the power switching circuit connects external VCC and disconnects the internal lithium energy source. Normal operation can resume after VCC exceeds 4.5 volts for a period of 200 ms.

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型号：TS3V340RGYR 厂家：TI 封装：QFN 批号：07+G4 数量：1383 说明：QQ：104735486 611606076


运费：运费到付10.00元（快递）20.00元（顺风）所在地：深圳新旧程度：