ST72325xx
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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:
- Program executed from RAM, CPU running with RAM access.
- All I/O pins in input mode with a static value at VDD or VSS (no load)
- All peripherals in reset state.
- CSS and LVD disabled.
- 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 12.4.2) and the peripheral power
3. 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.
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, LVD disabled. To obtain the
total current consumption of the device, add the clock source consumption
(Section 12.4.2).
Symbol
Parameter
Conditions
Flash Devices
ROM Devices
Unit
Typ
Max 1)
Typ
Max 1)
IDD
Supply current in RUN mode 2)
fOSC=2MHz, fCPU=1MHz
fOSC=4MHz, fCPU=2MHz
fOSC=8MHz, fCPU=4MHz
fOSC=16MHz, fCPU=8MHz
1.3
2.0
3.6
7.1
3.0
5.0
8.0
15.0
0.5
1.2
2.2
4.8
1.0
2.0
4.0
8.0
mA
Supply current in SLOW mode
2)
fOSC=2MHz, fCPU=62.5kHz
fOSC=4MHz, fCPU=125kHz
fOSC=8MHz, fCPU=250kHz
fOSC=16MHz, fCPU=500kHz
600
700
800
1100
2700
3000
3600
4000
100
200
300
500
600
700
800
950
μA
Supply current in WAIT mode
2)
fOSC=2MHz, fCPU=1MHz
fOSC=4MHz, fCPU=2MHz
fOSC=8MHz, fCPU=4MHz
fOSC=16MHz, fCPU=8MHz
0.8
1.2
2.0
3.5
3.0
4.0
5.0
7.0
0.5
0.8
1.5
3.0
1.0
1.3
2.2
4.0
mA
Supply current in SLOW WAIT
mode 2)
fOSC=2MHz, fCPU=62.5kHz
fOSC=4MHz, fCPU=125kHz
fOSC=8MHz, fCPU=250kHz
fOSC=16MHz, fCPU=500kHz
580
650
770
1050
1200
1300
1800
2000
50
90
180
350
100
150
300
600
μA
Supply current in HALT mode
3)
-40°C
≤TA≤+85°C
<1
10
<1
10
μA
-40°C
≤TA≤+125°C
5
50
<1
50
IDD
Supply current in ACTIVE-
HALT mode 4)
fOSC=2MHz
fOSC=4MHz
fOSC=8MHz
fOSC =16MHz
450
465
530
650
No max.
guaran-
teed
15
30
60
120
25
50
100
200
μA