STM32F102R4 STMicroelectronics, STM32F102R4 Datasheet - Page 51

• 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

STM32F102x4, STM32F102x6
5.3.14
5.3.15
TIM timer characteristics
The parameters given in
Refer to
function characteristics (output compare, input capture, external clock, PWM output).
Table 37.
1. TIMx is used as a general term to refer to the TIM2, TIM3 and TIM4 timers.
Communications interfaces
I
Unless otherwise specified, the parameters given in
performed under ambient temperature, f
summarized in
The STM32F102xx low-density USB access line I
standard I
SCL are mapped to are not “true” open-drain. When configured as open-drain, the PMOS
connected between the I/O pin and V
The I
characteristics
and SCL) .
t
2
MAX_COUNT
t
C interface characteristics
COUNTER
Symbol
t
Res
res(TIM)
f
EXT
2
C characteristics are described in
TIM
Section 5.3.12: I/O port characteristics
2
C communication protocol with the following restrictions: t he I/O pins SDA and
TIMx
Timer resolution time
Timer external clock
frequency on CH1 to CH4
Timer resolution
16-bit counter clock period
when internal clock is
selected
Maximum possible count
for more details on the input/output alternate function characteristics (SDA
Table
(1)
characteristics
Parameter
8.
Table 37
Doc ID 15057 Rev 3
are guaranteed by design.
DD
f
f
TIMxCLK
f
f
TIMxCLK
TIMxCLK
TIMxCLK
PCLK1
Table
is disabled, but is still present.
Conditions
frequency and V
38. Refer also to
= 48 MHz
= 48 MHz
= 48 MHz 0.0208
= 48 MHz
for details on the input/output alternate
2
C interface meets the requirements of the
Table 38
20.84
Min
1
0
0
1
are derived from tests
DD
Section 5.3.12: I/O port
Electrical characteristics
supply voltage conditions
65536 × 65536
f
TIMxCLK
65536
89.48
1365
Max
24
16
/2
t
t
t
TIMxCLK
TIMxCLK
TIMxCLK
MHz
MHz
Unit
ns
bit
µs
s
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