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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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Bit 4—Reserved: This bit cannot be modified and is always read as 1.  
Bit 3: Reset or NMI Select (RST/NMI): Selects either an internal reset or the NMI function at  
watchdog timer overflow.  
Bit 3: RST/NMI  
Description  
0
1
NMI function enabled  
Reset function enabled  
(Initial value)  
Bits 2–0—Clock Select (CKS2–CKS0): These bits select one of eight clock sources obtained by  
dividing the system clock (ø).  
The overflow interval is the time from when the watchdog timer counter begins counting from  
H'00 until an overflow occurs. In interval timer mode, OVF interrupts are requested at this  
interval.  
Bit 2:  
CKS2  
Bit 1:  
CKS1  
Bit 0:  
CKS0  
Clock Source Overflow Interval (øP = 10 MHz)  
0
0
1
0
1
0
1
0
1
0
1
0
1
øP/2  
51.2 µs  
819.2 µs  
1.6 ms  
(Initial value)  
øP/32  
øP/64  
øP/128  
øP/256  
øP/512  
øP/2048  
øP/4096  
3.3 ms  
1
6.6 ms  
13.1 ms  
52.4 ms  
104.9 ms  
225  
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