Datasheet

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STM32F401xD STM32F401xE Electrical characteristics
114
Table 47. Flash memory endurance and data retention
6.3.13 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
DD
and V
SS
through a 100 pF capacitor, until a functional disturbance occurs. This test is compliant
with the IEC 61000-4-4 standard.
A device reset allows normal operations to be resumed.
The test results are given in Table 48. They are based on the EMS levels and classes
defined in application note AN1709.
V
prog
Programming voltage 2.7 - 3.6 V
V
PP
V
PP
voltage range 7 - 9 V
I
PP
Minimum current sunk on
the V
PP
pin
10 - - mA
t
VPP
(3)
Cumulative time during
which V
PP
is applied
- - 1 hour
1. Guaranteed by design, not tested in production.
2. The maximum programming time is measured after 100K erase operations.
3. V
PP
should only be connected during programming/erasing.
Symbol Parameter Conditions
Value
Unit
Min
(1)
1. Guaranteed by characterization, not tested in production.
N
END
Endurance
T
A
= –40 to +85 °C (6 suffix versions)
T
A
= –40 to +105 °C (7 suffix versions)
10
kcycles
t
RET
Data retention
1 kcycle
(2)
at T
A
= 85 °C
2. Cycling performed over the whole temperature range.
30
Years1 kcycle
(2)
at T
A
= 105 °C 10
10 kcycles
(2)
at T
A
= 55 °C 20
Table 46. Flash memory programming with V
PP
voltage (continued)
Symbol Parameter Conditions Min
(1)
Typ Max
(1)
Unit
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