DS34C87TM/NOPB

DS34C87TM/NOPB资料
	DS34C87TM/NOPB PDF Download

File Size : 116 KB Manufacturer:NSC Description:Data transfer to and from the timekeeping function is accomplished with a serial bit stream under control of chip enable ( CE ), output enable ( OE ), and write enable ( WE ). Initially, a read cycle to any memory location using the CE and OE control of the phantom clock starts the pattern-recognition sequence by moving a pointer to the first bit of the 64-bit comparison register. Next, 64 consecutive write cycles are executed using the CE and WE signals of the device. These 64 write cycles are used only to gain access to the phantom clock. Therefore, any address within the first 512kB of memory, (00h to 7FFFFh) is acceptable. However, the write cycles generated to gain access to the phantom clock are also writing data to a location in the memory. The preferred way to manage this requirement is to set aside just one address location in memory as a phantom clock scratch pad. When the first write cycle is executed, it is compared to bit 0 of the 64-bit comparison register. If a match is found, the pointer increments to the next location of the comparison register and awaits the next write cycle. If a match is not found, the pointer does not

	1PCS	100PCS	1K	10K
价格


型号：DS34C87TM/NOPB 厂家：NSC 封装：批号：0752 数量：278 说明：Bid Price


运费：所在地：新旧程度：

联系我们：

联系人：刘先生，罗小姐，刘小姐，刘先生，王先生

电话：0086-755-83576094,83576097,83576087,83576084,83979425

手机：0086-(0)13728684091

QQ：2355773149,2355773142,61991728

MSN：franlmk168@live.cn

传真：86-755-83576061

EMail：sales@xgf-ic.com, kupan_ic@126.com

公司地址： 深圳市龙岗区龙岗街道龙岗大道远洋新干线晶钻广场2栋B座2915房

订购须知：