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FAQ

Can system clock source be selected from an external crystal (HXT) in MS51 series?  Issue Date:2021-11-09

Yes, an external 4~24 MHz high speed crystal (HXT) can be connected to the MS51 series via HXTIN and HXTOUT and be set as system clock source. However, due to the limitation of the pin arrangement, only some of parts in MS51 series support to connect an HXT via HXTIN and HXTOUT. Users can see the table below for reference.

For more details, please refer to the HXT section for crystal and the External Clock Input section for oscillator in MS51 Datasheet.

 

MS51 Series

Package

Crystal

Oscillator

MS51BA9AE

MSOP10

X

X

MS51DA9AE

TSSOP14

X

X

MS51FC0AE

TSSOP20

V

V

MS51XC0BE

QFN20

V

V

MS51FB9AE

TSSOP20

X

V

MS51XB9AE

QFN20

X

V

MS51EC0AE

TSSOP28

V

V

MS51TC0AE

QFN33

V

V

MS51PC0AE

LQFP32

V

V

MS51EB0AE

TSSOP28

V

V

Products: 마이크로컨트롤러(MCU) ,8비트 8051 MCU ,산업용 8051 시리즈
Applications:
Function: Peripherals,Clock Control,HXT,LXT
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