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型號(hào)：	HD6433047
廠商：	Hitachi,Ltd.
英文描述：	CONN HEADER .100 SNGL STR 36POS
中文描述：	日立單片機(jī)
文件頁(yè)數(shù)：	633/867頁(yè)
文件大小：	2771K
代理商：	HD6433047

18.10 Flash Memory Programming and Erasing Precautions

(1) Program with the specified voltages and timing.

The programming voltage (V

) of the flash memory is 12.0 V.

If the PROM programmer is set to Hitachi HN28F101 specifications, V

will be 12.0 V. Applied

voltages in excess of the rating can permanently damage the device. Insure, in particular, that

peak overshoot at the Vpp and MD2 pins does not exceed the maximum rating of 13 V. Also, be

very careful about PROM programmer overshoot.

(2) Before programming, check that the chip is correctly mounted in the PROM programmer.

Overcurrent damage to the device can result if the index marks on the PROM programmer socket,

socket adapter, and chip are not correctly aligned.

(3) Don’t touch the socket adapter or chip while programming. Touching either of these can

cause contact faults and write errors.

(4) Precautions in turning the programming voltage (V

) on and off:

(a) Apply the programming voltage (V

) after the rise of V

, when the microcontroller is in a

stable condition. Shut off V

, again while the microcontroller is in a stable condition.

is turned on or off while V

is not within its rated voltage range (V

= 2.7 to 5.5 V),

since microcontroller operation is unstable and flash memory protection is not functioning, the

flash memory may be programmed or erased by mistake. This can occur even if V

same danger of incorrect programming or erasing exists when V

is within its rated voltage

= 2.7 to 5.5 V) if the clock oscillator has not stabilized, if the clock oscillator has

stopped (except in standby), or if a program runaway has occurred. After V

power-up, do not

until the clock oscillator has had time to settle (t

= 20 ms min) and the

microcontroller is safely in the reset state, or the reset has been cleared.

These power-on and power-off timing requirements should also be satisfied in the event of a

power failure and recovery from a power failure. If these requirements are not satisfied, the flash

memory may not only be unintentionally programmed or erased; it may be permanently damaged.

相關(guān)PDF資料	PDF描述
HD6433048	Hitachi Single-Chip Microcomputer
HD64F3642A	H8/3644 Series Hardware Manual
HD6473644	H8/3644 Series Hardware Manual
HD64F3643	H8/3644 Series Hardware Manual
HD64F3644	H8/3644 Series Hardware Manual

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
HD6433047F	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433047SA18FV	制造商:Renesas Electronics Corporation 功能描述:
HD6433047TF	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433047VF	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller
HD6433047VTF	制造商:未知廠家制造商全稱:未知廠家功能描述:32-Bit Microcontroller

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