HD6473434F16 参数 Datasheet PDF下载

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 ]

Notes on Use of RAM Emulation Function

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Notes on Applying, Releasing, and Shutting Off the Programming Voltage (V_PP)

Care is necessary to avoid errors in programming and erasing when applying, releasing, and

shutting off V_PP, just as in the on-board programming modes. In particular, even if the

emulation function is being used, make sure that the watchdog timer is set when the P or E bit

of the flash memory control register (FLMCR) has been set, to prevent errors in programming

and erasing due to program runaway while V_PPis applied.

For details see section 19.7, Flash Memory Programming and Erasing Precautions (5).

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