 |
|||||||
|
|||||||
|
|
|||||||
|
|||||||
|
|
| ds2502资料 | |
|
ds2502 |
|
file size : 116 kb
manufacturer:dalls description:when chip enable is at v ih the supply current is reduced to the ttl standby supply current, i cc2. to further reduce the supply current to the cmos standby supply current, icc3, chip enable should be held within v cc 0.2v. for standby current levels see table 11, dc characteristics. during program or erase operations the memory will continue to use the program/erase supply current, icc4, for program or erase operations un- til the operation completes. automatic standby. if cmos levels (vcc 0.2v) are used to drive the bus and the bus is inactive for 150ns or more the memory enters automatic standby where the internal supply current is re- duced to the cmos standby supply current, icc3. the data inputs/outputs will still output data if a bus read operation is in progress. special bus operations additional bus operations can be performed to read the electronic signature and also to apply and remove block protection. these bus opera- tions are intended for use by programming equip- ment and are not usually used in applications. they require vid to be applied to some pins. electronic signature. the memory has two codes, the manufacturer code and the device code, that can be read to identify the memory. these codes can be read by applying the signals listed in table 5, bus operations. block protection and blocks unprotection. each block can be separately protected against acci- dental program or erase. protected blocks can be unprotected to allow data to be changed. there are two methods available for protecting and unprotecting the blocks, one for use on pro- gramming equipment and the other for in-system use. for further information refer to application note an1122, applying protection and unprotec- tion to m29 series flash. |
|
| 1pcs | 100pcs | 1k | 10k | ||
|
型 号：ds2502 厂 家：dalls 封 装：sop8 批 号：0617 数 量：2000 说 明：优势库存现货 |
|||||
|
运 费： 所在地： 新旧程度： |
|||||
| 联系人：林浩/林妮 |
| 电 话：0755-82532799/82532766/83989559 |
| 手 机：13510168121/13725556003 |
| qq：496982847/351622092 |
| msn：linearic@hotmail.com |
| 传 真：0755-82532766 |
| email：maxim_zi@126.com |
| 公司地址： 深圳市福田区佳和大厦b座1802室 门市部：华强广场 q2a114展销柜 |
凯发vip的版权所有：深圳市浩兴电子有限公司凯发vip的版权所有 凯发vip的技术支持：维库电子市场网
访问统计：
建议使用分辨率:1024*768 凯发在线网站的友情链接
后台管理
