Datasheet
STM32F405xx, STM32F407xx Electrical characteristics
Doc ID 022152 Rev 2 93/167
Figure 32 and Figure 33 show the main PLL output clock waveforms in center spread and
down spread modes, where:
F0 is f
PLL_OUT
nominal.
T
mode
is the modulation period.
md is the modulation depth.
Figure 32. PLL output clock waveforms in center spread mode
Figure 33. PLL output clock waveforms in down spread mode
5.3.12 Memory characteristics
Flash memory
The characteristics are given at T
A
= –40 to 105 °C unless otherwise specified.
The devices are shipped to customers with the Flash memory erased.
&REQUENCY0,,?/54
4IME
&
TMODE TMODE
MD
AI
MD
&REQUENCY0,,?/54
4IME
&
TMODE TMODE
MD
AI
Table 35. Flash memory characteristics
(1)
Symbol Parameter Conditions Min Max Unit
I
DD
Supply current
Read mode
f
HCLK
= 168 MHz with 5 wait states,
V
DD
= 3.3 V
-100mA
Write / Erase modes
f
HCLK
= 168 MHz, V
DD
= 3.3 V
-TBDmA