STM32F102R4 STMicroelectronics, STM32F102R4 Datasheet - Page 20

• Manufacturer Part Number: STM32F102R4
• Description: Mainstream USB Access line, ARM Cortex-M3 MCU with 16 Kbytes Flash, 48 MHz CPU, USB, FS
• Manufacturer: STMicroelectronics

Specifications of STM32F102R4

• Core: ARM 32-bit Cortex™-M3 CPU
• Peripherals Supported: timers, ADC, SPIs, I2Cs and USARTs
• Conversion Range: 0 to 3.6 V
• Systick Timer: 24-bit downcounter

Pinouts and pin description
Table 4.
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21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
-
-
-
-
-
-
-
-
Pins
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
low-density STM32F102xx pin definitions (continued)
Pin name
V
V
V
V
PB10
PB11
PB12
PB13
PB14
PB15
PC10
PC11
PC12
PA10
PA11
PA12
PA13
PA14
PA15
PC6
PC7
PC8
PC9
PD2
PB3
PB4
PB5
PA8
PA9
DD_1
DD_2
SS_1
SS_2
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
S
S
S
S
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
Doc ID 15057 Rev 3
JTMS-SWDIO
JTCK/SWCLK
(after reset)
function
JNTRST
V
V
V
V
PC10
PC11
PC12
JTDO
PB10
PB11
PB12
PB13
PB14
PB15
Main
PA10
PA11
PA12
JTDI
PC6
PC7
PC8
PC9
PD2
PB5
PA8
PA9
DD_1
DD_2
SS_1
SS_2
(3)
USART1_CTS/USBDM
USART1_RTS/USBDP
USART1_CK/MCO
USART1_RX
USART1_TX
I2C_SMBA
Default
Alternate functions
STM32F102x4, STM32F102x6
(8)
(8)
(8)
(8)
(8)
TIM2_CH1_ETR/
TIM2_CH2/ PB3/
TIM3_CH1 / PB4
PA15 /SPI_NSS
TRACESWO/
(3) (4)
TIM3_CH2 /
TIM2_CH3
TIM2_CH4
TIM3_CH1
TIM3_CH2
TIM3_CH3
TIM3_CH4
SPI_MISO
SPI_MOSI
SPI_SCK
Remap
PA13
PA14