STM32F215VGT6 查看數據表（PDF） - STMicroelectronics

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STM32F215VGT6

ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM, crypto, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

STMicroelectronics 

STM32F21xxx

Electrical characteristics

Table 48. Characteristics of TIMx connected to the APB2 domain(1)

Symbol

Parameter

Conditions

Min

Max

Unit

tres(TIM) Timer resolution time

AHB/APB2

prescaler distinct

from 1, fTIMxCLK =

120 MHz

AHB/APB2

prescaler = 1,

fTIMxCLK = 60 MHz

1

8.3

1

16.7

-

tTIMxCLK

-

ns

-

tTIMxCLK

-

ns

fEXT

Timer external clock

frequency on CH1 to CH4

0

fTIMxCLK/2

MHz

0

60

MHz

ResTIM

tCOUNTER

Timer resolution

-

16-bit counter clock period fTIMxCLK = 120 MHz 1

when internal clock is

APB2 = 60 MHz

selected

0.0083

16

65536

546

bit

tTIMxCLK

µs

tMAX_COUNT Maximum possible count

-

65536 × 65536 tTIMxCLK

-

35.79

s

1. TIMx is used as a general term to refer to the TIM1, TIM8, TIM9, TIM10, and TIM11 timers.

5.3.19

Communications interfaces

I2C interface characteristics

Unless otherwise specified, the parameters given in Table 49 are derived from tests

performed under the ambient temperature, fPCLK1 frequency and VDD supply voltage

conditions summarized in Table 11.

STM32F215xx and STM32F217xx I2C interface meets the requirements of the standard I2C

communication protocol with the following restrictions: the I/O pins SDA and SCL are

mapped to are not “true” open-drain. When configured as open-drain, the PMOS connected

between the I/O pin and VDD is disabled, but is still present.

The I2C characteristics are described in Table 49. Refer also to Section 5.3.16: I/O port

characteristics for more details on the input/output alternate function characteristics (SDA

and SCL).

Doc ID 17050 Rev 8

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