STM32F102RB STMicroelectronics, STM32F102RB Datasheet - Page 20

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STM32F102RB

Manufacturer Part Number
STM32F102RB
Description
Mainstream USB Access line, ARM Cortex-M3 MCU with 128 Kbytes Flash, 48 MHz CPU, USB FS
Manufacturer
STMicroelectronics
Datasheet

Specifications of STM32F102RB

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

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Pinouts and pin description
Table 4.
20/69
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
-
-
-
-
-
-
-
-
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
Medium-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
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
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 15056 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
PA8
PA9
DD_1
DD_2
SS_1
SS_2
(3)
I2C2_SDA/ USART3_RX
I2C2_SCL/ USART3_TX
SPI2_NSS / I2C2_SMBA/
USART1_CTS/USBDM
USART1_RTS/USBDP
USART1_CK/MCO
USART3_CK
USART1_RX
USART1_TX
USART3_CTS
USART3_RTS
SPI2_SCK
SPI2_MISO/
SPI2_MOSI
TIM3_ETR
Default
Alternate functions
STM32F102x8, STM32F102xB
(8)
(8)
(8)
(8)
/
(8)
(8)
TIM2_CH1_ETR/
PA15 /SPI1_NSS
TIM2_CH2/ PB3/
TIM3_CH1 / PB4
TRACESWO/
(3) (4)
USART3_RX
USART3_CK
USART3_TX
SPI1_MISO
TIM2_CH3
TIM2_CH4
TIM3_CH1
TIM3_CH2
TIM3_CH3
TIM3_CH4
SPI1_SCK
Remap
PA13
PA14

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