Specifications
ST72104Gx, ST72215Gx, ST72216Gx, ST72254Gx
102/141
13.4 SUPPLY CURRENT CHARACTERISTICS
The following current consumption specified for
the ST7 functional operating modes over tempera
-
ture range does not take into account the clock
source current consumption. To get the total de
-
vice consumption, the two current values must be
added (except for HALT mode for which the clock
is stopped).
13.4.1 RUN and SLOW Modes
Figure 59. Typical I
DD
in RUN vs. f
CPU
Figure 60. Typical I
DD
in SLOW vs. f
CPU
Notes:
1. Typical data are based on TA=25°C, V
DD
=5V (4.5V≤V
DD
≤5.5V range) and VDD=3.4V (3.2V≤V
DD
≤3.6V range).
2. Data based on characterization results, tested in production at V
DD
max. and f
CPU
max.
3. CPU running with memory access, all I/O pins in input mode with a static value at V
DD
or V
SS
(no load), all peripherals
in reset state; clock input (OSC1) driven by external square wave, CSS and LVD disabled.
4. SLOW mode selected with f
CPU
based on f
OSC
divided by 32. All I/O pins in input mode with a static value at V
DD
or
V
SS
(no load), all peripherals in reset state; clock input (OSC1) driven by external square wave, CSS and LVD disabled.
Symbol Parameter Conditions Max Unit
∆I
DD(∆Ta)
Supply current variation vs. temperature Constant V
DD
and f
CPU
10 %
Symbol Parameter Conditions Typ
1)
Max
2)
Unit
I
DD
Supply current in RUN mode
3)
(see Figure 59)
4.5V≤V
DD
≤5.5V
f
OSC
=1MHz, f
CPU
=500kHz
f
OSC
=4MHz, f
CPU
=2MHz
f
OSC
=16MHz, f
CPU
=8MHz
500
1500
5600
900
2500
9000
µA
Supply current in SLOW mode
4)
(see Figure 60)
f
OSC
=1MHz, f
CPU
=31.25kHz
f
OSC
=4MHz, f
CPU
=125kHz
f
OSC
=16MHz, f
CPU
=500kHz
150
250
670
450
550
1250
Supply current in RUN mode
3)
(see Figure 59)
3.2V≤V
DD
≤3.6V
f
OSC
=1MHz, f
CPU
=500kHz
f
OSC
=4MHz, f
CPU
=2MHz
f
OSC
=16MHz, f
CPU
=8MHz
300
970
3600
550
1350
4500
Supply current in SLOW mode
4)
(see Figure 60)
f
OSC
=1MHz, f
CPU
=31.25kHz
f
OSC
=4MHz, f
CPU
=125kHz
f
OSC
=16MHz, f
CPU
=500kHz
100
170
420
250
300
700
3 .2 3 .5 4 4 .5 5 5 .5
VDD [V]
0
1
2
3
4
5
6
7
IDD [mA]
8MHz
4MHz
2MHz
500kHz
3 .2 3 .5 4 4 .5 5 5 .5
VDD [V]
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
IDD [mA]
500kHz
250kHz
125kHz
31.25kHz