SC3200 datasheet(372/447 Pages) AMD

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372

AMD Geode™ SC3200 Processor Data Book

Electrical Specifications

Revision 5.1

9.1.5.3

Definition of System Conditions for

Measuring On Parameters

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.

9.1.5.4

DC Current Measurements

Table 9-6 and Table 9-7 show the DC current measure-

ments of the SC3200.

Table 9-5. System Conditions Used to Measure SC3200 Current During On State

CPU Current Measurement

System Conditions

VCORE

(Note 1_

VIO

(Note 1)

DCLK

Frequency

SDRAM

Frequency

Typical Average

Nominal

50 MHz (Note 2)

Nominal

Absolute Maximum

Max

135 MHz (Note 3)

Max

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

image of vertical stripes (4-pixel wide) alternating between black and white with power management disabled.

Note 3. A DCLK frequency of 135 MHz is derived by setting the display mode to 1280x1024x8 bpp at 75 Hz, using a display

image of vertical stripes (1-pixel wide) alternating between black and white with power management disabled.

Table 9-6. DC Characteristics for On State

Symbol

Parameter (Note 1)

Typ Avg

Abs Max

Unit

Comments

ICC3ON

fCLK = 233 MHz, I/O Current @ VIO = 3.3V

(Nominal); CPU state = On

260

300

ICC for VIO

fCLK = 266 MHz, I/O Current @ VIO = 3.3V

(Nominal); CPU state = On

270

310

ICOREON

fCLK = 233 MHz, Core Current @ VCORE =

1.8V (Nominal); CPU state = On

820

990

ICC for VCORE

fCLK = 266 MHz, Core Current @ VCORE =

1.8V (Nominal); CPU state = On

900

1090

ISBON

SB Current @ VSB = 3.3V (Nominal);

CPU state = On

ISBLON

SBL Current @ VSBL = 1.8V (Nominal);

CPU state = On

SBL Current @ VSBL = 2.0V (Nominal);

CPU state = On

Note 1. fCLK ratings refer to internal clock frequency.

SC3200 Datasheet(PDF) 372 Page - Advanced Micro Devices

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