ST72324BL datasheet(113/151 Pages) STMICROELECTRONICS

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ST72F324L, ST72324BL

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12.4 SUPPLY CURRENT CHARACTERISTICS

The following 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 for which the clock is stopped).

12.4.1 CURRENT CONSUMPTION

Notes:

1. Data based on characterization results, tested in production at VDD max. and fCPU max.

2. Measurements are done in the following conditions:

- Progam executed from RAM, CPU running with RAM access. The increase in consumption when executing from Flash

is 50%.

- All I/O pins in input mode with a static value at VDD or VSS (no load)

- All peripherals in reset state.

- Clock input (OSC1) driven by external square wave.

- In SLOW and SLOW WAIT mode, fCPU is based on fOSC divided by 32.

To obtain the total current consumption of the device, add the clock source (Section 12.5.3) and the peripheral power

consumption (Section 12.4.3).

3. All I/O pins in push-pull 0 mode (when applicable) with a static value at VDD or VSS (no load). Data based on charac-

terization results, tested in production at VDD max. and fCPU max.

4. Data based on characterisation results, not tested in production. All I/O pins in push-pull 0 mode (when applicable) with

a static value at VDD or VSS (no load); clock input (OSC1) driven by external square wave. To obtain the total current

consumption of the device, add the clock source consumption (Section 12.5.3).

Symbol

Parameter

Conditions

Flash Devices

ROM Devices

Unit

Typ

Max 1)

Typ

Max 1)

IDD

Supply current in RUN mode

fOSC=2MHz, fCPU=1MHz

fOSC=4MHz, fCPU=2MHz

fOSC=8MHz, fCPU=4MHz

fOSC=16MHz, fCPU=8MHz

0.9

1.4

2.5

4.7

1.35

2.1

3.8

7.0

0.23

0.45

0.88

1.8

0.5

1.0

2.0

4.0

Supply current in SLOW

mode 2)

fOSC=2MHz, fCPU=62.5kHz

fOSC=4MHz, fCPU=125kHz

fOSC=8MHz, fCPU=250kHz

fOSC=16MHz, fCPU=500kHz

350

400

500

700

500

600

750

1000

170

180

350

µA

Supply current in WAIT

mode 2)

fOSC=2MHz, fCPU=1MHz

fOSC=4MHz, fCPU=2MHz

fOSC=8MHz, fCPU=4MHz

fOSC=16MHz, fCPU=8MHz

0.7

1.0

1.8

3.2

1.0

1.5

2.7

4.8

0.12

0.22

0.42

0.83

0.25

0.5

Supply current in SLOW

WAIT mode 2)

fOSC=2MHz, fCPU=62.5kHz

fOSC=4MHz, fCPU=125kHz

fOSC=8MHz, fCPU=250kHz

fOSC=16MHz, fCPU=500kHz

330

370

440

570

500

550

650

900

100

125

250

µA

Supply current in HALT

mode 3)

µA

Supply current in ACTIVE-

HALT mode 4)

fOSC = 16 MHz

350

Not

guaran-

teed

100

µA

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