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BU9897GUL-W PDF预览

BU9897GUL-W

更新时间： 2024-02-04 23:56:39
品牌 Logo 应用领域
罗姆 - ROHM 存储内存集成电路可编程只读存储器电动程控只读存储器电可擦编程只读存储器时钟
页数 文件大小 规格书
5页 183K
描述
Silicon Monolithic Integrated Circuit

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BU9897GUL-W 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：BGA
包装说明：VCSP-11针数：11
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.32.00.51风险等级：5.8
最大时钟频率 (fCLK)：0.4 MHzJESD-30 代码：R-PBGA-B11
JESD-609代码：e1长度：2.44 mm
内存密度：131072 bit内存集成电路类型：EEPROM
内存宽度：8功能数量：1
端子数量：11字数：16384 words
字数代码：16000工作模式：SYNCHRONOUS
最高工作温度：85 °C最低工作温度：-40 °C
组织：16KX8封装主体材料：PLASTIC/EPOXY
封装代码：VFBGA封装形状：RECTANGULAR
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH并行/串行：SERIAL
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：0.55 mm串行总线类型：I2C
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：1.7 V
标称供电电压 (Vsup)：2.5 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：1.99 mm
最长写入周期时间 (tWC)：0.000005 msBase Number Matches：1

BU9897GUL-W 数据手册

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◇NOTES FOR POWER SUPPLY  
Vcc rises through the low voltage region in which internal circuit of IC and the controller are unstable, so that device may not work  
properly due to an incomplete reset of internal circuit. To prevent this, the device has the feature of P.O.R. and LVCC. In the case of  
power up, keep the following conditions to ensure functions of P.O.R. and LVCC.  
1. It is necessary to be "SDA='H'" and "SCL='L' or 'H'".  
2. Follow the recommended conditions of tR, tOFF, Vbot for the function of P.O.R. during power up.  
◇RECOMMENDED CONDITIONS OF tR, tOFF, Vbot  
tR  
Vcc  
tOFF  
Fig.-2 Vcc RISING WAVEFORM  
Vbot  
0
3. Prevent SDA and SCL from being "High-Z".  
In case that condition 1. and/or 2. cannot be met,  
take following actions.  
Vcc  
tLOW  
SCL  
A） Unable to keep condition 1.  
( SDA is "LOW" during power up.)  
→Control SDA ,SCL to be "HIGH" as Fig.-3(a),  
3(b).  
B）Unable to keep condition 2.  
SDA  
After Vcc becomes stable  
After Vcc becomes stable  
tDH tSU:DAT  
Fig.-3（a） SCL='H' and SDA='L'  
tSU:DAT  
Fig.-3（b） SCL='L' and SDA='L'  
→After power becomes stable, execute  
C）Unable to keep both conditions 1 and 2.  
→Follow the instruction A first, then the instruction B.  
◇CAUTIONS ON USE  
(1) Absolute maximum ratings  
If the absolute maximum ratings such as impressed voltage and action temperature range and so forth are exceeded, LSI may  
be destructed. Do not impress voltage and temperature exceeding the absolute maximum ratings. In the case of fear exceeding  
the absolute maximum ratings, take physical safety countermeasures such as fuses, and see to it that conditions exceeding  
the absolute maximum ratings should not be impressed to LSI.  
(2) GND electric potential  
Set the voltage of GND terminal lowest at any action condition. Make sure that each terminal voltage is not lower than that of  
GND terminal.  
(3) Thermal design  
In consideration of permissible loss in actual use condition, carry out heat design with sufficient margin.  
(4) Terminal to terminal shortcircuit and wrong packaging  
When to package LSI onto a board, pay sufficient attention to LSI direction and displacement. Wrong packaging may destruct  
LSI. And in the case of shortcircuit between LSI terminals and terminals and power source, terminal and GND owing to  
foreign matter, LSI may be destructed.  
(5) Use in a strong electromagnetic field may cause malfunction, therefore, evaluated design sufficiently.  
REV. B  
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