STM32F030C8P6TR(2013) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STM32F030C8P6TR
(Rev.:2013)

Value-line ARM®-based 32-bit MCU with up to 256-KB Flash, timers, ADC, communication interfaces, 2.4-3.6 V operation

STMicroelectronics 

Electrical characteristics

STM32F030x4 STM32F030x6 STM32F030x8

6.3.7

External clock source characteristics

High-speed external user clock generated from an external source

In bypass mode the HSE oscillator is switched off and the input pin is a standard GPIO.

The external clock signal has to respect the I/O characteristics in Section 6.3.14. However,

the recommended clock input waveform is shown in Figure 12: High-speed external clock

source AC timing diagram.

Symbol

Table 29. High-speed external user clock characteristics

Parameter(1)

Conditions Min Typ Max Unit

fHSE_ext

User external clock source

frequency

VHSEH

VHSEL

tw(HSEH)

tw(HSEL)

tr(HSE)

tf(HSE)

OSC_IN input pin high level voltage

OSC_IN input pin low level voltage

OSC_IN high or low time

OSC_IN rise or fall time

1. Guaranteed by design, not tested in production.

1

8

32 MHz

0.7VDD -

VDD

V

VSS

- 0.3VDD

15

-

-

ns

-

-

20

Figure 12. High-speed external clock source AC timing diagram

VHSEH

VHSEL

90%

10%

tr(HSE)

tW(HSEH)

tf(HSE)

THSE

tW(HSEL)

t

MS19214V2

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