Datasheet

DocID029041 Rev 6 131/255
STM32F765xx STM32F767xx STM32F768Ax STM32F769xx Electrical characteristics
220
On-chip peripheral current consumption
The MCU is placed under the following conditions:
• At startup, all I/O pins are in analog input configuration.
• All peripherals are disabled unless otherwise mentioned.
• I/O compensation cell enabled.
• The ART/L1-cache is ON.
• Scale 1 mode selected, internal digital voltage V12 = 1.32 V.
• HCLK is the system clock. f
PCLK1
= f
HCLK
/4, and f
PCLK2
= f
HCLK
/2.
The given value is calculated by measuring the difference of current consumption
– with all peripherals clocked off
– with only one peripheral clocked on
–f
HCLK
= 216 MHz (Scale 1 + over-drive ON), f
HCLK
= 168 MHz (Scale 2),
f
HCLK
= 144 MHz (Scale 3)
• Ambient operating temperature is 25 °C and V
DD
=3.3 V.
I
DDIO
I/O switching
Current
C
EXT
= 22 pF
C = C
INT
+ C
S
+ C
EXT
20.30.1
mA
81.00.5
25 3.5 1.6
50 5.9 4.2
60 10.0 4.4
84 19.12 5.8
90 19.6 -
C
EXT
= 33 pF
C = C
INT
+ C
S
+ C
EXT
20.30.2
81.30.7
25 3.5 2.3
50 10.26 5.19
60 16.53 -
1. CINT + C
S,
PCB board capacitance including the pad pin is estimated to15 pF.
Table 39. Switching output I/O current consumption
(1)
(continued)
Symbol Parameter Conditions
I/O toggling
frequency (fsw)
MHz
Typ
V
DD
= 3.3 V
Typ
V
DD
= 1.8 V
Unit
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