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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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18.1.1 Block Diagram  
Figure 18.1 is a block diagram of the on-chip ROM.  
Internal data bus (upper 8 bits)  
Internal data bus (lower 8 bits)  
H'0000  
H'0002  
H'0001  
H'0003  
On-chip ROM  
H'F77E  
H'F77F  
Even address  
Odd address  
Figure 18.1 Block Diagram of On-Chip ROM (H8/3437 Single-Chip Mode)  
18.2  
Writer Mode (H8/3437, H8/3434)  
18.2.1 Writer Mode Setup  
In writer mode the PROM versions of the H8/3437 and H8/3434 suspend the usual microcomputer  
functions to allow the on-chip PROM to be programmed. The programming method is the same as  
for the HN27C101.  
To select writer mode, apply the signal inputs listed in table 18.2.  
Table 18.2 Selection of Writer Mode  
Pin  
Input  
Low  
Low  
Low  
High  
Mode pin MD1  
Mode pin MD0  
STBY pin  
Pins P63 and P64  
364  
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