ST72324BJ2 datasheet(141/188 Pages) STMICROELECTRONICS

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ST72324B

Electrical characteristics

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12.5

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

obtain the total device consumption, the two current values must be added (except for Halt

mode for which the clock is stopped).

12.5.1

ROM current consumption

Table 88.

ROM current consumption

Symbol

Parameter

Conditions

32K ROM

devices

16K/8K ROM

devices

Unit

Typ

Max(1)

Typ

Max(1)

IDD

Supply current in Run mode(2)

fOSC = 2 MHz, fCPU =1MHz

fOSC = 4 MHz, fCPU =2MHz

fOSC = 8 MHz, fCPU =4MHz

fOSC =16MHz, fCPU =8MHz

0.55

1.10

2.20

4.38

0.87

1.75

3.5

7.0

0.46

0.93

1.9

3.7

0.69

1.4

2.7

5.5

Supply current in Slow mode(2)

fOSC = 2 MHz, fCPU =62.5kHz

fOSC = 4 MHz, fCPU = 125 kHz

fOSC = 8 MHz, fCPU = 250 kHz

fOSC =16MHz, fCPU = 500 kHz

100

194

380

175

350

700

150

310

120

250

500

µA

Supply current in Wait mode(2)

fOSC = 2 MHz, fCPU =1MHz

fOSC = 4 MHz, fCPU =2MHz

fOSC = 8 MHz, fCPU =4MHz

fOSC =16MHz, fCPU =8MHz

0.31

0.61

1.22

2.44

0.5

1.0

2.0

4.0

0.22

0.45

0.91

1.82

0.37

0.75

1.5

Supply current in Slow Wait

mode(2)

fOSC = 2 MHz, fCPU =62.5kHz

fOSC = 4 MHz, fCPU = 125 kHz

fOSC = 8 MHz, fCPU = 250 kHz

fOSC =16MHz, fCPU = 500 kHz

133

260

125

250

500

190

180

350

µA

Supply current in Halt mode(3)

-40°C < TA < +85°C

-40°C < TA < +125°C

Supply current in Active Halt

mode(4)

fOSC =2MHz

fOSC =4MHz

fOSC =8MHz

fOSC =16MHz

107

200

150

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

Measurements are done in the following conditions:

- Program 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

- LVD disabled.

- Clock input (OSC1) driven by external square wave

- In Slow and Slow Wait modes, fCPU is based on fOSC divided by 32

To obtain the total current consumption of the device, add the clock source (Section 12.6.3) and the peripheral power

consumption (Section 12.5.4).

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

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

Data based on characterization 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, LVD disabled. To obtain the total

current consumption of the device, add the clock source consumption (Section 12.6.3).

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