SH79F166AP044PR datasheet(31/113 Pages) ETC1

Part #	SH79F166AP044PR

Description	Enhanced 8051 microcontroller with 10-bit ADC

PDF	113 Pages

Scroll/Zoom	100%

Manufacturer	ETC1 [List of Unclassifed Manufacturers]

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31 / 113 page

SH79F166A

7.5.5 振荡器类型

(1) OP_OSC = 0000，0011：内部RC振荡器，XTAL和XTALX引脚与I/O共用

XTALX1

XTALX2

XTAL1

XTAL2

(2) OP_OSC = 1010：从XTAL输入32.768kHz晶体谐振器，内部RC振荡器可以使能，XTALX引脚与I/O共用

XTALX1

XTALX2

XTAL1

XTAL2

32.768kHz

(3) OP_OSC = 1101：从XTAL输入32.768kHz晶体谐振器，从XTALX输入2M - 12M晶体谐振器/陶瓷谐振器*

XTALX1

XTALX2

XTAL1

XTAL2

32.768kHz

Crystal/

Ceramic

(4) OP_OSC = 1110：从XTAL输入2M - 12M晶体谐振器/陶瓷谐振器*，XTALX引脚与I/O共用

XTALX1

XTALX2

XTAL1

XTAL2

Crystal/

Ceramic

(5) OP_OSC = 0110：内部128KHz RC振荡器，从XTAL输入2M - 12M晶体谐振器/陶瓷谐振器*，XTALX引脚与I/O共用

XTALX1

XTALX2

XTAL1

XTAL2

Crystal/

Ceramic

*：如果环境湿度较大，使用高频振荡器时，建议外加510K反馈电阻。

SH79F166AP044PR Datasheet(PDF) 31 Page - List of Unclassifed Manufacturers