STM8S005C6T6 STMicroelectronics, STM8S005C6T6 Datasheet - Page 90
STM8S005C6T6
Manufacturer Part Number
STM8S005C6T6
Description
8-bit Microcontrollers - MCU 8-bit MCU Value Line 16 MHz 32kb Flash
Manufacturer
STMicroelectronics
Datasheet
1.STM8S005C6T6.pdf
(103 pages)
Specifications of STM8S005C6T6
Product Category
8-bit Microcontrollers - MCU
Rohs
yes
Core
STM8
Data Bus Width
8 bit
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Electrical characteristics
9.3.12.1
9.3.12.2
90/103
Symbol
V FESD
V EFTB
Parameter
Voltage limits to be applied on
any I/O pin to induce a
functional disturbance
Fast transient voltage burst
limits to be applied through 100
pF on V DD and V SS pins to
induce a functional disturbance
Functional EMS (electromagnetic susceptibility)
While executing a simple application (toggling 2 LEDs through I/O ports), the product is
stressed by two electromagnetic events until a failure occurs (indicated by the LEDs).
•
•
A device reset allows normal operations to be resumed. The test results are given in the table
below based on the EMS levels and classes defined in application note AN1709 (EMC design
guide for STMicrocontrollers).
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:
•
•
•
Prequalification trials
Most of the common failures (unexpected reset and program counter corruption) can be
recovered by applying 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 (Software techniques
for improving microcontroller EMC performance).
FESD: Functional electrostatic discharge (positive and negative) is applied on all pins of
the device until a functional disturbance occurs. This test conforms with the IEC 61000-4-2
standard.
FTB: A burst of fast transient voltage (positive and negative) is applied to V
through a 100 pF capacitor, until a functional disturbance occurs. This test conforms with
the IEC 61000-4-4 standard.
Corrupted program counter
Unexpected reset
Critical data corruption (control registers...)
Conditions
V DD = 5 V, T A = 25 °C, f MASTER = 16 MHz,
conforming to IEC 1000-4-2
V DD = 5 V, T A = 25 °C ,f MASTER = 16 MHz,conforming
to IEC 1000-4-4
Table 46: EMS data
DocID022186 Rev 3
STM8S005K6 STM8S005C6
DD
Level/ class
2/B
4/A
and V
(1)
(1)
SS