ST72521M/R/AR
SUPPLY CURRENT CHARACTERISTICS (Cont’d)
12.4.7 On-Chip Peripherals
Measured on S72F521R9T3 on TQFP64 generic board TA = 25°C fCPU=4MHz.
Symbol
IDD(TIM)
IDD(ART)
IDD(SPI)
IDD(I2C)
IDD(CAN)
IDD(ADC)
Parameter
16-bit Timer supply current 1)
ART PWM supply current2)
SPI supply current 3)
I2C supply current 4)
CAN supply current 5)
ADC supply current when converting 6)
Conditions
VDD=5.0V
VDD=5.0V
VDD=5.0V
VDD=5.0V
VDD=5.0V
VDD=5.0V
Typ Unit
50
µA
75
400
µA
175
400
µA
400
µA
Notes:
1. Data based on a differential IDD measurement between reset configuration (timer counter running at fCPU/4) and timer
counter stopped (only TIMD bit set). Data valid for one timer.
2. Data based on a differential IDD measurement between reset configuration (timer stopped) and timer counter enabled
(only TCE bit set).
3. Data based on a differential IDD measurement between reset configuration (SPI disabled) and a permanent SPI master
communicationat maximum speed (data sent equal to 55h).This measurement includes the pad toggling consumption.
4. Data based on a differential IDD measurement between reset configuration (I2C disabled) and a permanent I2C master
communication at 100kHz (data sent equal to 55h). This measurement include the pad toggling consumption (27kOhm
external pull-up on clock and data lines).
5. Data based on a differential IDD measurement between reset configuration (CAN disabled) and a permanent CAN data
transmit sequence with RX and TX connected together. This measurement include the pad toggling consumption.
6. Data based on a differential IDD measurement between reset configuration and continuous A/D conversions.
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