Datasheet > 68HC05JB3

68HC05JB3

更新时间： 2022-11-24 21:41:41

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		微控制器
页数	文件大小	规格书
134页	1231K
描述
8-bit microcontroller units (MCUs)

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68HC05JB3 数据手册

Freescale Semiconductor, Inc.

GENERAL RELEASE SPECIFICATION

November 5, 1998

A.5.2 Programming Sequence

The EPROM programming sequence is:

1. Set the ELAT bit

2. Write the data to the address to be programmed

3. Set the PGM bit

4. Delay for a time t

PGMR

5. Clear the PGM bit

6. Clear the ELAT bit

The last two steps must be performed with separate CPU writes.

CAUTION

It is important to remember that an external programming voltage must be applied

to the V pin while programming, but it should be equal to V

during normal

operations.

Figure A-2 shows the ﬂow required to successfully program the EPROM.

MOTOROLA

A-4

MC68HC05JB3

REV 1

For More Information On This Product,

Go to: www.freescale.com

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