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Electrical characteristics ST72321xx-Auto
194/243 Doc ID 13829 Rev 1
19.4.3 On-chip peripherals
Measured on LQFP64 generic board T
A
= 25°C, f
CPU
=4MHz.
Table 113. On-chip peripherals current consumption
Symbol Parameter Conditions Typ Unit
I
DD(TIM)
16-bit timer supply current
(1)
1. Data based on a differential I
DD
measurement between reset configuration (timer counter running at
f
CPU
/4) and timer counter stopped (only TIMD bit set). Data valid for one timer.
V
DD
5.0V 50 µA
I
DD(ART)
ART PWM supply current
(2)
2. Data based on a differential I
DD
measurement between reset configuration (timer stopped) and timer
counter enabled (only TCE bit set).
V
DD
5.0V 75 µA
I
DD(SPI)
SPI supply current
(3)
3. Data based on a differential I
DD
measurement between reset configuration (SPI disabled) and a permanent
SPI master communication at maximum speed (data sent equal to 55h). This measurement includes the
pad toggling consumption.
V
DD
5.0V 400 µA
I
DD(SCI)
SCI supply current
(4)
4. Data based on a differential I
DD
measurement between SCI low power state (SCID = 1) and a permanent
SCI data transmit sequence.
I
DD(I2C)
I2C supply current
(5)
5. Data based on a differential I
DD
measurement between reset configuration (I2C disabled) and a permanent
I2C master communication at 100 kHz (data sent equal to 55h). This measurement includes the pad
toggling consumption (27k ohm external pull-up on clock and data lines).
V
DD
5.0V 175 µA
I
DD(ADC)
ADC supply current when converting
(6)
6. Data based on a differential I
DD
measurement between reset configuration and continuous A/D
conversions.
V
DD
5.0V 400 µA
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