STM32F101X6_08 STMICROELECTRONICS [STMicroelectronics], STM32F101X6_08 Datasheet - Page 22

• Manufacturer Part Number: STM32F101X6_08
• Description: Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Pin descriptions
Table 3.
1. I = input, O = output, S = supply, HiZ= high impedance.
2. FT= 5 V tolerant.
3. Function availability depends on the chosen device. For devices having reduced peripheral counts, it is always the lower
4. PC13, PC14 and PC15 are supplied through the power switch, and so their use in output mode is limited: they can be used
5. Main function after the first backup domain power-up. Later on, it depends on the contents of the Backup registers even
6. Available only on devices with a Flash memory density equal or higher than 64 Kbytes.
7. The pins number 2 and 3 in the VFQFPN36 package, and 5 and 6 in the LQFP48 and LQFP64 packages are configured as
8. This alternate function can be remapped by software to some other port pins (if available on the used package). For more
22/74
39
40
41
42
43
44
45
46
47
48
-
-
-
-
-
-
number of peripherals that is included. For example, if a device has only one SPI, two USARTs and two timers, they will be
called SPI1, USART1 & USART2 and TIM2 & TIM 3, respectively. Refer to
only in output 2 MHz mode with a maximum load of 30 pF and only one pin can be put in output mode at a time.
after reset (because these registers are not reset by the main reset). For details on how to manage these IOs, refer to the
Battery backup domain and BKP register description sections in the STM32F10xxx reference manual, available from the
STMicroelectronics website: www.st.com.
OSC_IN/OSC_OUT after reset, however the functionality of PD0 and PD1 can be remapped by software on these pins. For
the LQFP100 package, PD0 and PD1 are available by default, so there is no need for remapping. For more details, refer to
the Alternate function I/O and debug configuration section in the STM32F10xxx reference manual.
The use of PD0 and PD1 in output mode is limited as they can only be used at 50 MHz in output mode.
details, refer to the Alternate function I/O and debug configuration section in the STM32F10xxx reference manual, available
from the STMicroelectronics website: www.st.com.
55
56
57
58
59
60
61
62
63
64
-
-
-
-
-
-
Pins
100
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
Pin definitions (continued)
30
31
32
33
34
35
36
1
-
-
-
-
-
-
-
-
PB4/JNTRST
PB3/JTDO
Pin name
BOOT0
V
V
PD4
PD5
PD6
PD7
PB6
PB7
PB8
PB9
PE0
PE1
PB5
DD_3
SS_3
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
I
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
FT
(after reset)
function
JNTRST
BOOT0
V
JTDO
V
Main
PD4
PD5
PD6
PD7
PB5
PB6
PB7
PB8
PB9
PE0
PE1
DD_3
SS_3
(3)
Table 2 on page
PB3/TRACESWO
TIM4_CH1
TIM4_CH2
TIM4_CH3
TIM4_CH4
I2C1_SCL
I2C1_SDA
TIM4_ETR
I2C1_SMBAl
Default
Alternate functions
PB4
8.
(6) (8)
(6) (8)
(6) (8)
(6) (8)
(8)
(8)
(6)
/
/
STM32F101xx
USART2_RTS
USART2_RX
USART2_CK
USART2_TX
USART1_TX
USART1_RX
TIM2_CH2 /
TIM3_CH1 /
TIM3_CH2 /
SPI1_MISO
SPI1_MOSI
SPI1_SCK
I2C1_SCL
I2C1_SDA
Remap
(3)