ST72324BL datasheet(115/151 Pages) STMICROELECTRONICS

115 / 151 page

ST72F324L, ST72324BL

115/151

SUPPLY CURRENT CHARACTERISTICS (Cont’d)

12.4.2 Supply and Clock Managers

The previous current consumption specified for the ST7 functional operating modes over temperature

range does not take into account the clock source current consumption. To get the total device consump-

tion, the two current values must be added (except for HALT mode).

Notes:

1. Data based on characterization results, not tested in production.

2. Data based on characterization results done with the external components specified in Section 12.5.3 , not tested in

production.

3. As the oscillator is based on a current source, the consumption does not depend on the voltage.

12.4.3 On-Chip Peripherals

TA = 25°C fCPU=4MHz.

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 (SPI disabled) and a permanent SPI master

communication at maximum speed (data sent equal to 55h). This measurement includes the pad toggling consump-

tion.

3. Data based on a differential IDD measurement between reset configuration and continuous A/D conversions.

Symbol

Parameter

Conditions

Typ

Max 1)

Unit

IDD(RCINT) Supply current of internal RC oscillator

625

µA

IDD(RES)

Supply current of resonator oscillator 2) & 3)

see Section

12.5.3 on page

117

IDD(PLL)

PLL supply current

180

µA

Symbol

Parameter

Conditions

Typ

Unit

IDD(TIM)

16-bit Timer supply current 1)

VDD=3.3V

µA

IDD(SPI)

SPI supply current 2)

250

IDD(ADC)

ADC supply current when converting 3)

300

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