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STM32G030F6 Datasheet(PDF) 73 Page - STMicroelectronics

Part # STM32G030F6
Description  Arm® Cortex®-M0 32-bit MCU, up to 64 KB Flash, 8 KB RAM, 2x USART, timers, ADC, comm. I/Fs, 2.0-3.6V
PDF  94 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32G030F6 Datasheet(HTML) 73 Page - STMicroelectronics

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DS12991 Rev 1
73/94
STM32G030x6/x8
Electrical characteristics
80
5.3.21
Characteristics of communication interfaces
I2C-bus interface characteristics
The I2C-bus interface meets timing requirements of the I2C-bus specification and user
manual rev. 03 for:
•
Standard-mode (Sm): with a bit rate up to 100 kbit/s
•
Fast-mode (Fm): with a bit rate up to 400 kbit/s
•
Fast-mode Plus (Fm+): with a bit rate up to 1 Mbit/s.
The timings are guaranteed by design as long as the I2C peripheral is properly configured
(refer to the reference manual RM0454) and when the I2CCLK frequency is greater than the
minimum shown in the following table.
The SDA and SCL I/O requirements are met with the following restrictions: the SDA and
SCL I/O pins are not “true” open-drain. When configured as open-drain, the PMOS
connected between the I/O pin and VDDIO1 is disabled, but is still present. Only FT_f I/O pins
support Fm+ low-level output current maximum requirement. Refer to Section 5.3.14: I/O
port characteristics for the I2C I/Os characteristics.
Table 61. IWDG min/max timeout period at 32 kHz LSI clock(1)
Prescaler divider
PR[2:0] bits
Min timeout RL[11:0]= 0x000
Max timeout RL[11:0]= 0xFFF
Unit
/4
0
0.125
512
ms
/8
1
0.250
1024
/16
2
0.500
2048
/32
3
1.0
4096
/64
4
2.0
8192
/128
5
4.0
16384
/256
6 or 7
8.0
32768
1. The exact timings further depend on the phase of the APB interface clock versus the LSI clock, which causes an
uncertainty of one RC period.
Table 62. Minimum I2CCLK frequency
Symbol
Parameter
Condition
Typ
Unit
fI2CCLK(min)
Minimum I2CCLK
frequency for correct
operation of I2C
peripheral
Standard-mode
2
MHz
Fast-mode
Analog filter enabled
9
DNF = 0
Analog filter disabled
9
DNF = 1
Fast-mode
Plus
Analog filter enabled
18
DNF = 0
Analog filter disabled
16
DNF = 1



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