ST72321J Datasheet, PDF (143/179 Pages) STMicroelectronics – 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, 5 TIMERS, SPI, SCI, I2C INTERFACE

ST72321J
SUPPLY CURRENT CHARACTERISTICS (Cont’d)
12.4.7 On-Chip Peripherals
Measured on S72F521R9T3 on TQFP64 generic board T_A = 25°C f_CPU=4MHz.
Symbol
I_DD(TIM)
I_DD(ART)
I_DD(SPI)
I_DD(I2C)
I_DD(ADC)
Parameter
16-bit Timer supply current ¹⁾
ART PWM supply current²⁾
SPI supply current ³⁾
I2C supply current ⁴⁾
ADC supply current when converting ⁶⁾
Conditions
V_DD=5.0V
V_DD=5.0V
V_DD=5.0V
V_DD=5.0V
V_DD=5.0V
Typ Unit
50
µA
75
400
µA
175
400
µA
Notes:
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.
2. Data based on a differential I_DD measurement between reset configuration (timer stopped) and timer counter enabled
(only TCE bit set).
3. Data based on a differential I_DD 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 I_DD 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).
6. Data based on a differential I_DD measurement between reset configuration and continuous A/D conversions.
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