Emc Characteristics; Table 32. Flash Memory Endurance And Data Retention; Table 33. Ems Characteristics - STMicroelectronics STM32L151CB Manual

STM32L151xx, STM32L152xx
Table 32.
Symbol
(2)
N
CYC
(2)
t
RET
1. Based on characterization not tested in production.
2. Characterization is done according to JEDEC JESD22-A117.
6.3.9

EMC characteristics

Susceptibility tests are performed on a sample basis during device characterization.
Functional EMS (electromagnetic susceptibility)
While a simple application is executed on the device (toggling 2 LEDs through I/O ports). the
device is stressed by two electromagnetic events until a failure occurs. The failure is
indicated by the LEDs:
●
Electrostatic discharge (ESD) (positive and negative) is applied to all device pins until
a functional disturbance occurs. This test is compliant with the IEC 61000-4-2 standard.
●
FTB: A Burst of Fast Transient voltage (positive and negative) is applied to V
V
SS
compliant with the IEC 61000-4-4 standard.
A device reset allows normal operations to be resumed.
The test results are given in
defined in application note AN1709.
Table 33.
Symbol
V
FESD
V
EFTB
Flash memory endurance and data retention
Parameter
Cycling (erase / write )
Program memory
Cycling (erase / write )
EEPROM data memory
Data retention (program memory) after
10 kcycles at T = 85 °C
A
Data retention (EEPROM data memory)
after 300 kcycles at T
A
Data retention (program memory) after
10 kcycles at T = 105 °C
A
Data retention (EEPROM data memory)
after 300 kcycles at T
A
through a 100 pF capacitor, until a functional disturbance occurs. This test is
Table
EMS characteristics
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
pins to induce a functional disturbance
Doc ID 17659 Rev 6
Conditions
= -40°C to
T
A
105 °C
T
RET
= 85 °C
T
RET
= 105 °C
33. They are based on the EMS levels and classes
V
f
HCLK
conforms to IEC 61000-4-2
V
and V f
DD SS HCLK
conforms to IEC 61000-4-4
Electrical characteristics
Value
(1)
Min Typ Max
10
300
30
= +85 °C
30
10
= +105 °C
10
Conditions
= 3.3 V, LQFP100, T
DD A
= 32 MHz
= 3.3 V, LQFP100, T
DD A
= 32 MHz
Unit
kcycles
years
and
DD
Level/
Class
= +25 °C,
2B
= +25 °C,
4A
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