STM32F031G6T7(2015) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F031G6T7
(Rev.:2015)

ARM®-based 32-bit MCU with up to 32 Kbyte Flash, 9 timers, ADC and communication interfaces, 2.0 - 3.6 V

STMicroelectronics 

Electrical characteristics

STM32F031x4 STM32F031x6

Figure 16. Typical application with an 8 MHz crystal

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1. REXT value depends on the crystal characteristics.

069

Low-speed external clock generated from a crystal resonator

The low-speed external (LSE) clock can be supplied with a 32.768 kHz crystal resonator

oscillator. All the information given in this paragraph are based on design simulation results

obtained with typical external components specified in Table 34. In the application, the

resonator and the load capacitors have to be placed as close as possible to the oscillator

pins in order to minimize output distortion and startup stabilization time. Refer to the crystal

resonator manufacturer for more details on the resonator characteristics (frequency,

package, accuracy).

Symbol

Table 34. LSE oscillator characteristics (fLSE = 32.768 kHz)

Parameter

Conditions(1)

Min(2) Typ Max(2) Unit

IDD

LSE current consumption

LSEDRV[1:0]=00

lower driving capability

LSEDRV[1:0]= 01

medium low driving capability

LSEDRV[1:0] = 10

medium high driving capability

LSEDRV[1:0]=11

higher driving capability

-

0.5 0.9

-

-

1

µA

-

-

1.3

-

-

1.6

56/106

DocID025743 Rev 4

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