STM32F446MC Datasheet, PDF (79/201 Pages) STMicroelectronics – 8- to 14-bit parallel camera interface up to 54 Mbytes

STM32F446xC/E
Electrical characteristics
Figure 20. External capacitor C_EXT
&
6.3.3
6.3.4
(65
5_/HDN
069
1. Legend: ESR is the equivalent series resistance.
Table 18. VCAP_1/VCAP_2 operating conditions⁽¹⁾
Symbol
Parameter
Conditions
C_EXT
Capacitance of external capacitor
2.2 µF
ESR
ESR of external capacitor
<2Ω
C_EXT
Capacitance of external capacitor with a
single V_CAP pin available
4.7 µF
ESR
ESR of external capacitor with a single
V_CAP pin available
<1Ω
1.
When bypassing the
replaced by two 100
voltage regulator, the two
nF decoupling capacitors.
2.2
µF
V_CAP
capacitors
are
not
required
and
should
be
Operating conditions at power-up / power-down (regulator ON)
Subject to general operating conditions for T_A.
Table 19. Operating conditions at power-up/power-down (regulator ON)
Symbol
Parameter
Min
Max
t_VDD
V_DD rise time rate
V_DD fall time rate
20
20
∞
∞
Operating conditions at power-up / power-down (regulator OFF)
Subject to general operating conditions for T_A.
Table 20. Operating conditions at power-up / power-down (regulator OFF)⁽¹⁾
Symbol
Parameter
Conditions
Min Max Unit
t_VDD
t_VCAP
V_DD rise time rate
V_DD fall time rate
V_{CAP_1} and V_{CAP_2} rise time rate
V_{CAP_1} and V_{CAP_2} fall time rate
Power-up
Power-down
Power-up
Power-down
20
∞
20
∞
µs/V
20
∞
20
∞
1.
To reset
1.08 V.
the
internal
logic
at
power-down,
a
reset
must
be
applied
on
pin
PA0
when
V_DD
reach
below
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