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AL10053N2DL 参数 Datasheet PDF下载

AL10053N2DL图片预览
型号: AL10053N2DL
PDF下载: 下载PDF文件 查看货源
内容描述: 薄膜片式电感器 [THIN FILM CHIP INDUCTOR]
分类和应用: 电感器
文件页数/大小: 66 页 / 368 K
品牌: ABC [ ABC Taiwan Electronics Corp ]
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AL103 Revision 1.0  
If the reset pin is held low, the AL103’s EEPROM interface will go into a high impedance state.  
This feature is very useful for reprogramming the EEPROM during installation or reconfiguration.  
The EEPROM can be reprogrammed by an external parallel port. For reprogramming using a  
parallel port, a signal is used to hold the RESET pin low. The EEPROM interface will then be in the  
high-impedance state. An external device can then program the EEPROM through the EEDIO and  
the EECLK pins. The EEPROM address should be set to 000.  
3.14.2 Start and Stop Bit  
The write cycle is started by a start bit and ended by a stop bit. A start bit is a transition from high to  
low of EEDIO when EEC is high. The operation terminates when EEDIO goes from low to high  
when EEC is high. Following a start condition, the writing device must output the address of the  
EEPROM. The most significant four bit of the EEPROM address is the device type identifier which  
has an address of 1010. The EEPROM device address should be set to 000.  
EECLK  
EEDIO  
Data or  
Address  
Valid  
START  
BIT  
Data  
Change  
STOP BIT  
Figure 5  
EEPROM Start and Stop Bit  
3.14.3 Write Cycle Operation  
The EECLK is an output from the AL103 while EEDIO is a bi-directional signal. When accessing  
the EEPROM, the reset pin has to be held low or initialization of the AL103 must be finished before  
a writing operation can begin. A typical write operation is shown in Figure 6.  
Device  
Address  
Start  
Stop  
A
A
A
S
S
8-Bit Data n  
8-Bit Word Address  
Acknowledge  
Acknowledge  
Acknowledge  
Figure 6  
EEPROM Write Cycle  
9/00  
Reference Only / Allayer Communications  
30  
 
 
 
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