STM8L152M8T3 STMicroelectronics, STM8L152M8T3 Datasheet - Page 94

• Manufacturer Part Number: STM8L152M8T3
• Description: 8-bit Microcontrollers - MCU 8-bit Ultralow MCU LCD 80pin 64kb Flash
• Manufacturer: STMicroelectronics

Specifications of STM8L152M8T3

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: STM8
• Data Bus Width: 8 bit

Electrical parameters
9.3.6
9.3.7
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I/O current injection characteristics
As a general rule, current injection to the I/O pins, due to external voltage below V
above V
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 susceptibility 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, out of spec current
injection on adjacent pins or other functional failure (for example reset, oscillator frequency
deviation, LCD levels, etc.).
The test results are given in the following table.
Table 37. I/O current injection susceptibility
I/O port pin characteristics
General characteristics
Subject to general operating conditions for V
unused pins must be kept at a fixed voltage: using the output mode of the I/O for example or
an external pull-up or pull-down resistor.
Symbol
I
INJ
DD
(for standard pins) should be avoided during normal product operation. However,
Injected current on true open-drain pins
Injected current on all 5 V tolerant (FT) pins
Injected current on any other pin
Description
Doc ID 17943 Rev 5
DD
and T
A
unless otherwise specified. All
Functional susceptibility
Negative
injection
-5
-5
-5
STM8L15xx8, STM8L15xR6
injection
Positive
+0
+0
+5
SS
Unit
or
mA