STM32F103C4 datasheet(7/90 Pages) STMICROELECTRONICS

Part #	STM32F103C4

Description	Low-density performance line, ARM-based 32-bit MCU with 16 or32 KB Flash, USB

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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7 / 90 page

STM32F103x4, STM32F103x6

List of figures

Doc ID 15060 Rev 6

7/90

List of figures

Figure 1.

STM32F103xx performance line block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 2.

Clock tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 3.

STM32F103xx performance line LQFP64 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 4.

STM32F103xx performance line TFBGA64 ballout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 5.

STM32F103xx performance line LQFP48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 6.

STM32F103xx performance line UFQFPN48 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 7.

STM32F103xx performance line VFQFPN36 pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 8.

Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 9.

Pin loading conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 10.

Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 11.

Power supply scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 12.

Current consumption measurement scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 13.

Typical current consumption in Run mode versus frequency (at 3.6 V) -

code with data processing running from RAM, peripherals enabled. . . . . . . . . . . . . . . . . . 37

Figure 14.

Typical current consumption in Run mode versus frequency (at 3.6 V) -

code with data processing running from RAM, peripherals disabled . . . . . . . . . . . . . . . . . 37

Figure 15.

Typical current consumption on VBAT with RTC on versus temperature at different

VBAT values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 16.

Typical current consumption in Stop mode with regulator in Run mode versus

temperature at VDD = 3.3 V and 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 17.

Typical current consumption in Stop mode with regulator in Low-power mode versus

temperature at VDD = 3.3 V and 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 18.

Typical current consumption in Standby mode versus temperature at

VDD = 3.3 V and 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 19.

High-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 20.

Low-speed external clock source AC timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 21.

Typical application with an 8 MHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 22.

Typical application with a 32.768 kHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Figure 23.

Standard I/O input characteristics - CMOS port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 24.

Standard I/O input characteristics - TTL port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 25.

5 V tolerant I/O input characteristics - CMOS port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 26.

5 V tolerant I/O input characteristics - TTL port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 27.

I/O AC characteristics definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 28.

Recommended NRST pin protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Figure 29.

I2C bus AC waveforms and measurement circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Figure 30.

SPI timing diagram - slave mode and CPHA = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 31.

SPI timing diagram - slave mode and CPHA = 1(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 32.

SPI timing diagram - master mode(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figure 33.

USB timings: definition of data signal rise and fall time . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 34.

ADC accuracy characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 35.

Typical connection diagram using the ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Figure 36.

Power supply and reference decoupling (VREF+ not connected to VDDA). . . . . . . . . . . . . . 73

Figure 37.

Power supply and reference decoupling(VREF+ connected to VDDA) . . . . . . . . . . . . . . . . . 74

Figure 38.

VFQFPN36 6 x 6 mm, 0.5 mm pitch, package outline(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 39.

Recommended footprint (dimensions in mm)(1)(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 40.

UFQFPN48 7 x 7 mm, 0.5 mm pitch, package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Figure 41.

Recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 42.

LQFP64, 10 x 10 mm, 64-pin low-profile quad flat package outline . . . . . . . . . . . . . . . . . . 79

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