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STM32F103RBH7TR 데이터시트(Datasheet) 55 Page - STMicroelectronics

부품명 STM32F103RBH7TR
상세내용  Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
PDF  92 Pages
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제조사  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32F103x8, STM32F103xB
Electrical characteristics
Doc ID 13587 Rev 11
55/92
Designing hardened software to avoid noise problems
EMC characterization and optimization are performed at component level with a typical
application environment and simplified MCU software. It should be noted that good EMC
performance is highly dependent on the user application and the software in particular.
Therefore it is recommended that the user applies EMC software optimization and
prequalification tests in relation with the EMC level requested for his application.
Software recommendations
The software flowchart must include the management of runaway conditions such as:
Corrupted program counter
Unexpected reset
Critical Data corruption (control registers...)
Prequalification trials
Most of the common failures (unexpected reset and program counter corruption) can be
reproduced by manually forcing a low state on the NRST pin or the Oscillator pins for 1
second.
To complete these trials, ESD stress can be applied directly on the device, over the range of
specification values. When unexpected behavior is detected, the software can be hardened
to prevent unrecoverable errors occurring (see application note AN1015).
Electromagnetic Interference (EMI)
The electromagnetic field emitted by the device are monitored while a simple application is
executed (toggling 2 LEDs through the I/O ports). This emission test is compliant with
IEC 61967-2 standard which specifies the test board and the pin loading.
Table 30.
EMS characteristics
Symbol
Parameter
Conditions
Level/
Class
VFESD
Voltage limits to be applied on any I/O pin to
induce a functional disturbance
VDD 3.3 V, TA +25 °C,
fHCLK 72 MHz
conforms to IEC 61000-4-2
2B
VEFTB
Fast transient voltage burst limits to be
applied through 100 pF on VDD and VSS
pins to induce a functional disturbance
VDD3.3 V, TA +25 °C,
fHCLK 72 MHz
conforms to IEC 61000-4-4
4A
Table 31.
EMI characteristics
Symbol
Parameter
Conditions
Monitored
frequency band
Max vs. [fHSE/fHCLK]
Unit
8/48 MHz 8/72 MHz
SEMI
Peak level
VDD 3.3 V, TA 25 °C,
LQFP100 package
compliant with
IEC 61967-2
0.1 to 30 MHz
12
12
dBµV
30 to 130 MHz
22
19
130 MHz to 1GHz
23
29
SAE EMI Level
4
4
-




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