STM32F051C4(2012) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F051C4
(Rev.:2012)

Low- and medium-density advanced ARM™-based 32-bit MCU with 16 to 64 Kbytes Flash, timers, ADC, DAC and comm. interfaces

STMicroelectronics 

STM32F051x

Functional overview

Several prescalers allow the application to configure the frequency of the AHB and the APB

domains. The maximum frequency of the AHB and the APB domains is 48 MHz.

Figure 2. Clock tree

(3)

393#,+

&,)4&#,+

TO&LASHPROGRAMMINGINTERFACE

TO)#

TO)3

/3#?/54

/3#?).

/3#?).

/3#?/54

-#/

-(Z (3)

(3)2#



0,,32#

0,,-5,

37

(3)

0,,

XX

0,,#,+

!(!"("

PRESCALER

X

(3%







#33

393#,+

,3%



TO#%#

(#,+



!0"

PRESCALER



TO!("BUSCORE

MEMORYAND$-!

TOCORTEX3YSTEMTIMER

&(#,+#ORTEXFREERUNNINGCLOCK

0#,+

TO!0"PERIPHERALS

)F!0"PRESCALER

 XELSEX

TO4)-



-(Z

(3%/3#

-(Z (3)

(3)2#

!$#

0RESCALER



TO!$#

-(ZMAX



,3%/3# ,3%

 K(Z

24##,+

24#3%,;=

TO24#

0#,+

393#,+

(3)

,3%

TO53!24

,3)2#

,3)

K(Z

-AINCLOCK 

OUTPUT

-#/

0,,#,+

(3)

(3)

(3%

393#,+

TO)7$'

-36

3.7

General-purpose inputs/outputs (GPIOs)

Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as

input (with or without pull-up or pull-down) or as peripheral alternate function. Most of the

GPIO pins are shared with digital or analog alternate functions.

Doc ID 022265 Rev 3

15/105

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