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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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8.4  
Operation  
8.4.1  
FRC Increment Timing  
FRC increments on a pulse generated once for each period of the selected (internal or external)  
clock source. The clock source is selected by bits CKS0 and CKS1 in TCR.  
Internal Clock: The internal clock sources (øP/2, øP/8, øP/32) are created from the system clock  
(ø) by a prescaler. FRC increments on a pulse generated from the falling edge of the prescaler  
output. See figure 8.4.  
ø
Internal  
clock  
FRC clock  
pulse  
FRC  
N – 1  
N
N + 1  
Figure 8.4 Increment Timing for Internal Clock Source  
173  
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