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HD6473434F16 参数 Datasheet PDF下载

HD6473434F16图片预览
型号: HD6473434F16
PDF下载: 下载PDF文件 查看货源
内容描述: 12伏不能应用于S -掩模模型(单电源规格) ,因为这可能会永久损坏设备。 [12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.]
分类和应用: 外围集成电路微控制器可编程只读存储器时钟
文件页数/大小: 752 页 / 2557 K
品牌: HITACHI [ HITACHI SEMICONDUCTOR ]
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13.3.7 Noise Canceler  
The logic levels at the SCL and SDA pins are routed through noise cancelers before being latched  
internally. Figure 13.11 shows a block diagram of the noise canceler.  
The noise canceler consists of two cascaded latches and a match detector. The SCL (or SDA)  
input signal is sampled on the system clock, but is not passed forward to the next circuit unless the  
outputs of both latches agree. If they do not agree, the previous value is held.  
Sampling clock  
C
C
SCL or  
SDA input  
signal  
Internal  
SCL or  
SDA  
D
Q
D
Q
Match  
detector  
Latch  
Latch  
signal  
t
Sampling  
clock  
t: System clock  
Figure 13.11 Block Diagram of Noise Canceler  
306  
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