首页 > 推广型号列表 > NL27WZ14DFT2

NL27WZ14DFT2

NL27WZ14DFT2资料
	NL27WZ14DFT2 PDF Download

File Size : 116 KB Manufacturer:ON 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 NL27WZ14DFT2 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 functionality. It is also required to insure that during this time (battery backup mode), the voltage present at INTA and INTB (INTB) never exceeds VBAT. 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.

	1PCS	100PCS	1K	10K
价格


型号：NL27WZ14DFT2 厂家：ON 封装：SOP 批号：09+ 数量：30000 说明：全新原装正品现货，专业供应


运费：所在地：新旧程度：

联系我们：

联系人：李利媛

电话：0755/83019596,83247541,83247486

手机：13480648723

QQ：1104562168,1178139673,1113496577,2881934444,2881943289,2881943290

MSN：ao-liteng01@hotmail.com,ao-liteng02@hotmail.com,ao-liteng03@hotmail.com,ao-liteng04@hotmail.com

传真：0755-83016216

EMail：aoliteng1@163.com

公司地址： 广东省深圳市福田区振兴西路新欣大厦B座518室

订购须知：

友情链接： 百度维库电子网 51电子网 IC兄弟网