
8
ELECTRICAL CHARACTERISTICS
S1C33205 PRODUCT PART
EPSON
A-71
A-1
A-8
8.4 Current Consumption
1) 3.3 V power source
(Unless otherwise specified: VDDE=2.7V to 5.5V, VDD=2.7V to 3.6V, VSS=0V, Ta=-40°C to +85°C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Operating current
IDD1
When CPU is operating
20MHz
–
27
35
mA
1
25MHz
–
33
45
33MHz
–
44
60
50MHz
–
65
85
IDD2
HALT mode
20MHz
–
13
16
mA
2
25MHz
–
16
22
33MHz
–
20
30
50MHz
–
29
40
IDD3
HALT2 mode
20MHz
–
6
8
mA
3
25MHz
–
7
10
33MHz
–
9
12
50MHz
–
12
15
IDD4
SLEEP mode
–
1
30
A
4
Clock timer operating current
IDDCT
When clock timer only is operating
OSC1 oscillation: 32kHz
–7–
A
5
(Unless otherwise specified: VDDE=VDD=3.3V±0.3V, VSS=0V, Ta=-40°C to +85°C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Operating current when the
IDDsd
When the ld instruction is
20MHz
–
31
45
mA
SDRAM controller is active
executed
25MHz
–
38
50
IDDnop
When the nop instruction
20MHz
–
23
35
mA
is executed
25MHz
–
29
40
–
Difference value in 20MHz operation1
–8
10
mA
Difference value in 25MHz operation1
–9
10
1 The difference value of current consumption means the current value increased in the CPU and SDRAM
controller blocks when the ld instruction is executed.
2) 2.0 V power source
(Unless otherwise specified: VDDE=VDD=2.0V±0.2V, VSS=0V, Ta=-40°C to +85°C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Operating current
IDD1
When CPU is operating, 20MHz
–
14
18
mA
1
IDD2
HALT mode, 20MHz
–
7
10
mA
2
IDD3
HALT2 mode, 20MHz
–
2.5
4
mA
3
IDD4
SLEEP mode
–
1
30
A
4
Clock timer operating current
IDDCT
When clock timer only is operating
OSC1 oscillation: 32kHz
–
1.5
–
A
5
3) Analog power current
(Unless otherwise specified: VSS=0V, Ta=-40°C to +85°C)
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
A/D converter operating current
AIDD1
VDD=3.6V, VDDE=AVDDE=5.0V±0.5V
–
800
1400
A
6
VDD=VDDE=AVDDE=2.7V to 3.6V
–
500
800
Current consumption measurement condition: VIH=VDD, VIL=0V, output pins are open, VDDE current is not included
note) No.
OSC3
OSC1
CPU
Clock timer
Other peripheral circuits
1On
Off
Normal operation
1
Stop
2On
Off
HALT mode
Stop
3On
Off
HALT2 mode
Stop
4
Off
SLEEP mode
Stop
5
Off
On
HALT mode
Run
Stop
6On
Off
HALT mode
Stop
A/D converter only operated,
conversion clock frequency=2MHz
1: The values of current consumption while the CPU is operating were measured when a test program that
consists of 55% load instructions, 23% arithmetic operation instructions, 1% mac instruction, 12% branch
instructions and 9% ext instruction is being executed in the built-in ROM continuously.