Seagate ST320410ACE, ST340810ACE, ST360020ACE, ST380020ACE 1.7.1.1 Typical current profile

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U Series CE Family Product Manual, Rev. A 9

1.7.1.1 Typical current profile

Figure 1. Typical startup and operation current profile

Power Mode Typical Watts Typical Amps Means

5V 12V

Spinup — 0.75 2.5

Seek (Random,

no read/write)

Performance mode 7.5 0.83 0.279

Operating (read/write)

Performance mode 7.5 0.94 0.233

Idle 5.0 0.63 0.154

Standby 1.2 0.2 0.017

Sleep 0.9 0.15 0.0125

2.0

1.5

1.0

0.5

-0.5

-1.0

-1.5

-2.0

Current (amps)

1234567

Time (seconds)

Contents

Main Page Page Page Contents Page Page Page Introduction 2 U Series CE Family Product Manual, Rev. A Specification summary table U Series CE Family Product Manual, Rev. A 3 4 U Series CE Family Product Manual, Rev. A 1.0 Drive specifications this drive n n1, 1.2 Physical organization 1.3 Recording and interface technology 1.4 Physical characteristics 1.5 Seek time 1.6 Start/stop times Page 1.7.1.1 Typical current profile Page 1.8.2 Temperature gradient 1.8 Environmental tolerances 1.8.1 Ambient temperature Page 1.8.6.1 Operating vibration 1.8.6.2 Nonoperating vibration 1.9 Drive acoustics 1.10 Electromagnetic immunity 1.11 Reliability 1.12 Agency certification 1.12.1 Safety certification 1.12.2 Electromagnetic compatibility 1.12.3 FCC verification How to Identify and Resolve Radio-Television Interference Prob- lems 2.0 Configuring and mounting the drive 2.2 Jumper settings 2.2.1 Master/slave configuration only Cable select Drive is slave Circuit Board 2.2.2 Cable-select option 2.2.3 Alternate capacity jumper grey black blue 2.1 Drive mounting 3.0 ATA interface 3.1 ATA interface signals and connector pins 22 U Series CE Family Product Manual, Rev. A Figure 4. I/O pins and supported ATA signals 3.1.1 Supported ATA commands Draft ATA-Rev 6 Standard. 3.1.2 Identify Drive command Draft ATA-Rev 6 Standard. x.xx Page Page Page 3.1.3 Set Features command (default). (default) (default). 3.1.4 S.M.A.R.T. commands Draft ATA-Rev 6 Standard.