Datasheet

DocID027107 Rev 6 81/202
STM32F446xC/E Electrical characteristics
175
6.3.6 Over-drive switching characteristics
When the over-drive mode switches from enabled to disabled or disabled to enabled, the
system clock is stalled during the internal voltage set-up.
The over-drive switching characteristics are given in Table 22. They are sbject to general
operating conditions for T
A
.
6.3.7 Supply current characteristics
The current consumption is a function of several parameters and factors such as the
operating voltage, ambient temperature, I/O pin loading, device software configuration,
operating frequencies, I/O pin switching rate, program location in memory and executed
binary code.
The current consumption is measured as described in Figure 19: Current consumption
measurement scheme.
All the run-mode current consumption measurements given in this section are performed
with a reduced code that gives a consumption equivalent to CoreMark code.
I
RUSH
(1)
InRush current on
voltage regulator power-
on (POR or wakeup
from Standby)
- - 160 200 mA
E
RUSH
(1)
InRush energy on
voltage regulator power-
on (POR or wakeup
from Standby)
V
DD
= 1.7 V, T
A
= 105 °C,
I
RUSH
= 171 mA for 31 µs
--5.4µC
1. Guaranteed based on test during characterization.
2. The reset temporization is measured from the power-on (POR reset or wakeup from V
BAT
) to the instant
when first instruction is read by the user application code.
Table 21. reset and power control block characteristics (continued)
Symbol Parameter Conditions Min Typ Max Unit
Table 22. Over-drive switching characteristics
(1)
1. Guaranteed based on test during characterization.
Symbol Parameter Conditions Min Typ Max Unit
Tod_swen
Over_drive switch
enable time
HSI - 45 -
µs
HSE max for 4 MHz
and min for 26 MHz
45 - 100
External HSE
50 MHz
- 40 -
Tod_swdis
Over_drive switch
disable time
HSI - 20 -
HSE max for 4 MHz
and min for 26 MHz.
20 - 80
External HSE
50 MHz
- 15 -
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.