sc3200 Advanced Micro Devices, sc3200 Datasheet - Page 372

• Manufacturer Part Number: sc3200
• Description: Geode-tm Sc3200 Processor
• Manufacturer: Advanced Micro Devices

9.1.5.3
The SC3200’s current is highly dependent on two func-
tional characteristics, DCLK (DOT clock) and SDRAM fre-
quency. Table 9-5 shows how these factors are controlled
when measuring the typical average and absolute maxi-
mum processor current parameters.
Note 1. See Table 9-3 on page 370 for nominal and maximum voltages.
Note 2. A DCLK frequency of 50 MHz is derived by setting the display mode to 800x600x8 bpp at 75 Hz, using a display
Note 3. A DCLK frequency of 135 MHz is derived by setting the display mode to 1280x1024x8 bpp at 75 Hz, using a display
Note 1. f
372
CPU Current Measurement
Typical Average
Absolute Maximum
Symbol
I
I
I
I
CC3ON
COREON
SBON
SBLON
image of vertical stripes (4-pixel wide) alternating between black and white with power management disabled.
image of vertical stripes (1-pixel wide) alternating between black and white with power management disabled.
CLK
Definition of System Conditions for
Measuring On Parameters
Table 9-5. System Conditions Used to Measure SC3200 Current During On State
ratings refer to internal clock frequency.
Parameter (Note 1)
f
(Nominal); CPU state = On
f
(Nominal); CPU state = On
f
1.8V (Nominal); CPU state = On
f
1.8V (Nominal); CPU state = On
SB Current @ V
CPU state = On
SBL Current @ V
CPU state = On
SBL Current @ V
CPU state = On
CLK
CLK
CLK
CLK
= 233 MHz, I/O Current @ V
= 266 MHz, I/O Current @ V
= 233 MHz, Core Current @ V
= 266 MHz, Core Current @ V
Revision 5.1
SB
SBL
SBL
= 3.3V (Nominal);
Table 9-6. DC Characteristics for On State
= 1.8V (Nominal);
= 2.0V (Nominal);
(Note 1_
Nominal
V
Max
CORE
IO
IO
CORE
CORE
= 3.3V
= 3.3V
=
=
9.1.5.4
Table 9-6 and Table 9-7 show the DC current measure-
ments of the SC3200.
(Note 1)
Nominal
Typ Avg
Max
V
260
270
820
900
10
10
IO
1
System Conditions
DC Current Measurements
Abs Max
1090
AMD Geode™ SC3200 Processor Data Book
300
310
990
135 MHz (Note 3)
20
20
50 MHz (Note 2)
2
Frequency
DCLK
Unit
mA
mA
mA
mA
Electrical Specifications
Comments
I
I
CC
CC
Frequency
SDRAM
Nominal
for V
for V
Max
IO
CORE