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STM32G473MB Datasheet(PDF) 165 Page - STMicroelectronics

Part # STM32G473MB
Description  Arm® Cortex®-M4 32-bit MCUFPU, up to 512 KB Flash, 170 MHz / 213 DMIPS, 128 KB SRAM, rich analog, math accelerator
PDF  229 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32G473MB Datasheet(HTML) 165 Page - STMicroelectronics

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STM32G473xB STM32G473xC STM32G473xE
Electrical characteristics
194
5.3.26
Communication interfaces characteristics
I2C interface characteristics
The I2C interface meets the timings 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 I2C timings requirements are guaranteed by design when the I2C peripheral is properly
configured (refer to reference manual RM0440 "STM32G4 Series advanced Arm®-based
32-bit MCUs") and when the I2CCLK frequency is greater than the minimum shown in the
table below.
Table 80. IWDG min/max timeout period at 32 kHz (LSI)(1)(2)
1. Guaranteed by design - Not tested in production.
2. The exact timings still depend on the phasing of the APB interface clock versus the LSI clock so that there
is always a full RC period of uncertainty.
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
Table 81. WWDG min/max timeout value at 170 MHz (PCLK)(1)
1. Guaranteed by design - Not tested in production.
Prescaler
WDGTB
Min timeout value
Max timeout value
Unit
1
0
0.0241
1.542
ms
2
1
0.0482
3.084
4
2
0.0964
6.168
8
3
0.1928
12.336



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