STM32F103T8 STMicroelectronics, STM32F103T8 Datasheet - Page 59

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STM32F103T8

Manufacturer Part Number
STM32F103T8
Description
Mainstream Performance line, ARM Cortex-M3 MCU with 64 Kbytes Flash, 72 MHz CPU, motor control, USB and CAN
Manufacturer
STMicroelectronics
Datasheet

Specifications of STM32F103T8

Conversion Range
0 to 3.6 V
Peripherals Supported
timers, ADC, SPIs, I2Cs and USARTs
STM32F103x8, STM32F103xB
5.3.12
I/O current injection characteristics
As a general rule, current injection to the I/O pins, due to external voltage below V
above V
(for standard, 3 V-capable I/O pins) should be avoided during normal product
DD
operation. However, in order to give an indication of the robustness of the microcontroller in
cases when abnormal injection accidentally happens, susceptibility tests are performed on a
sample basis during device characterization.
Functional susceptibilty to I/O current injection
While a simple application is executed on the device, the device is stressed by injecting
current into the I/O pins programmed in floating input mode. While current is injected into the
I/O pin, one at a time, the device is checked for functional failures.
The failure is indicated by an out of range parameter: ADC error above a certain limit (>5
LSB TUE), out of spec current injection on adjacent pins or other functional failure (for
example reset, oscillator frequency deviation).
The test results are given in
I/O current injection susceptibility
Table 34.
Symbol
Injected current on OSC_IN32,
OSC_OUT32, PA4, PA5, PC13
I
INJ
Injected current on all FT pins
Injected current on any other pin
Table 34
Functional susceptibility
Description
Negative
injection
Doc ID 13587 Rev 13
Electrical characteristics
or
SS
Unit
Positive
injection
-0
+0
mA
-5
+0
-5
+5
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