ST72F321J ST Microelectronics, ST72F321J Datasheet - Page 140

• Manufacturer Part Number: ST72F321J
• Description: 8-BIT MCU
• Manufacturer: ST Microelectronics

www.DataSheet4U.com
DataSheet
ST72321J
SUPPLY CURRENT CHARACTERISTICS (Cont’d)
12.4.2 WAIT and SLOW WAIT Modes (Flash devices)
Figure 72. Typical I
Notes:
1. Data based on characterization results, tested in production at V
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 V
- All peripherals in reset state.
- CSS and LVD disabled.
- Clock input (OSC1) driven by external square wave.
- In SLOW and SLOW WAIT mode, f
140/179
Symbol
To obtain the total current consumption of the device, add the clock source
peripheral power consumption
I
DD
6
5
4
3
2
1
0
4
U
3.2
.com
Supply current in WAIT mode
(see
Supply current in SLOW WAIT mode
(see
Figure
Figure
3.6
8MHz
4MHz
2MHz
1MHz
72)
73)
DD
4
Parameter
in WAIT vs. f
Vdd (V)
4.4
(Section
CPU
4.8
2)
is based on f
12.4.7).
CPU
www.DataSheet4U.com
5.2
2)
DD
5.5
or V
OSC
SS
divided by 32.
f
f
f
f
f
f
f
f
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
(no load)
Figure 73. Typical I
1.20
1.00
0.80
0.60
0.40
0.20
0.00
=2MHz, f
=4MHz, f
=8MHz, f
=16MHz, f
=2MHz, f
=4MHz, f
=8MHz, f
=16MHz, f
Conditions
DD
max. and f
3.2
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
500kHz
250kHz
125kHz
62.5kHz
(Section 12.5.3
=1MHz
=2MHz
=4MHz
=62.5kHz
=125kHz
=250kHz
3.6
=8MHz
=500kHz
CPU
4
max.
DD
Vdd (V)
in SLOW-WAIT vs. f
4.4
and
0.58
0.65
0.77
1.05
Typ
1.0
1.5
2.5
4.5
Section
www.DataSheet
www.DataSheet
www.DataSheet
www.DataSheet4U
4.8
Max
3.0
4.0
5.0
7.0
1.2
1.3
1.8
2.0
12.5.4) and the
5.2
1)
5.5
Unit
mA
mA
CPU
4U
4U.com
4U
.com
.com
.com