SEAGATE 2250 - Manuals

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Manual SEAGATE 2250

Summary

Page 3 - ATA Interface Drives; Product Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 2250 (ST92255AG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 1680 (ST91685AG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

 1997 Seagate Technology, Inc. All rights reserved Publication Number: 36337-101, Rev. B, March 1997 Seagate, Seagate Technology and the Seagate logo are registeredtrademarks of Seagate Technology, Inc. Marathon and SafeRite aretrademarks of Seagate Technology. Other product names are registeredtra...

Page 5 - Contents; iii

Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specification summary table . . . . . . . . . . . . . . . . . . . 2 1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Default ...

Page 6 - iv

1.11.2 Electromagnetic Compatibility . . . . . . . . . . . . 15 1.11.3 FCC verification . . . . . . . . . . . . . . . . . . . . 15 2.0 Drive mounting and configuration . . . . . . . . . . . . . . 17 2.1 Handling and static-discharge precautions . . . . . . . . . 17 2.2 Jumper settings . . . . . . . ...

Page 7 - Figures

Figures Figure 1. Typical startup and operation current profile. . . . . . . . 9 Figure 2. Connector and master/slave jumper setup . . . . . . . . 18 Figure 3. Drive mounting dimensions—side and bottom view. . . . 20 Figure 4. Drive mounting dimensions—end view . . . . . . . . . . 21 Figure 5. ATA I...

Page 9 - Introduction

Introduction The Marathon  2250 (ST92255AG) and Marathon 1680 (ST91685AG) provide very high storage capacity in a small, 17-mm hard disc drive. Key Features: • Low power consumption • Compact, SFF-8200-compatible form-factor • High rotational speed for fast internal data transfer • Quiet operation ...

Page 10 - Specification summary table; Drive Specification

Specification summary table The specifications listed in this table are for quick reference. For detailson a specification measurement or definition, see the appropriate sectionof this manual. Drive Specification Marathon 2250 Marathon 1680 Guaranteed Mbytes (1 Mbyte=10 6 bytes) 2,250 1,680 Guarante...

Page 13 - Drive specifications; Formatted capacity; Note. DOS systems are not able to access more than 528 Mbytes unless:; Default logical geometry; CHS Mode; Supported CHS

1.0 Drive specifications Unless otherwise noted, all specifications are measured under ambientconditions, at 40°C, at sea level and nominal power. 1.1 Formatted capacity Marathon 2250 Marathon 1680 Guaranteed Kbytes 2,250,209 1,680,634 Guaranteed sectors(LBA mode) 4,394,940 3,282,490 Bytes per secto...

Page 15 - Physical characteristics; Note. Maximum length excludes I/O connector pins that may extend up; Seek time; Seek type

1.4 Physical characteristics Marathon 2250 Marathon 1680 Maximum height (inches)(mm) 0.676(17.2) 0.676(17.2) Maximum width (inches)(mm) 2.76(70.1) 2.76(70.1) Maximum length (inches)(mm) 3.955(100.45) 3.955(100.45) Typical weight (ounces)(grams) 7.19(204) 7.05(200) Note. Maximum length excludes I/O c...

Page 16 - Mode

1.6 Start times Power-on to Ready (sec) 3.5 typical, 7 max Standby to Ready (sec) 2 typical, 3 max Idle to Ready (sec) 0.4 max 1.7 Power specifications The drive receives DC power (+5V) through pin 41 and pin 42 of the ATinterface connector. 1.7.1 Power consumption Power requirements for the drive a...

Page 17 - Power recovery; tive (at low impedance) because power may enter the input buffers.; Conducted noise; The drive is expected to operate with a maximum of:; Figure 1. Typical startup and operation current profile

1.7.1.1 Typical current profile Figure 1 shows a projected drive startup and operation current profile forthe Marathon 2250 and the Marathon 1680. Note. The peaks in Figure 1 are the result of inductive kickback from the commutation of the spindle motor and, therefore, do not drawpower from the batt...

Page 22 - Drive acoustics

1.8.6.2 Nonoperating vibration The following table lists the maximum nonoperating vibration that thedrive may experience without incurring physical damage or degradationin performance. 5–22 Hz 0.2-inch displacement (peak-to-peak) 22–400 Hz 4 Gs acceleration (0 to peak) 400–22 Hz 4 Gs acceleration (0...

Page 23 - Agency certification

1.11 Agency certification 1.11.1 Safety certification The drive is recognized in accordance with UL 1950 and CSA C22.2(950-M89) and meets all applicable sections of IEC 380, IEC 435,IEC 950, VDE 0806/08.81 and EN 60950 as tested by TUV-Rheinland,North America. 1.11.2 Electromagnetic Compatibility Ha...

Page 25 - Drive mounting and configuration; Handling and static-discharge precautions

2.0 Drive mounting and configuration 2.1 Handling and static-discharge precautions After unpacking, but before installation, the drive may be exposed topotential handling and ESD hazards. You must observe standard static-discharge precautions. A grounded wrist-strap is recommended. Handle the drive ...

Page 26 - Configuration; Figure 2. Connector and master/slave jumper setup

Jumperfor pinsA and B Jumperfor pins C and D Configuration Off Off Drive is master; slave drive may be detectedusing DASP– signal. CSEL is ignored. Off On Drive is master; slave drive is present. CSELis ignored. DASP– is ignored. On Off Drive is slave (a master drive should bepresent also). CSEL is ...

Page 27 - Note. Per SFF 8004 specifications, the I/O connector pins may extend; up to 0.015 inches beyond the edge of the head/disc assembly.; Caution. To avoid damaging the drive, use M3X0.5 metric mounting

2.3 Remote LED configuration The drive indicates activity to the host through the DASP– line (pin 39)on the ATA interface. This line may be connected to a drive statusindicator driving an LED at 5V. The line has a 30 mA nominal currentlimit; however, most external LEDs are sufficiently bright at 15 ...

Page 28 - Figure 3. Drive mounting dimensions—side and bottom view

A26 thread, 4PLCmin A38 full threadcenter within A27 ofposition specified A7 A29 A28 A23 A21 ± A22 A6 (to end of HDA) A30 A31 A24 A25 A4 ± A5 (width at mounting holes) A32 thread, 4PLCmin A41 full threadcenter within A33 ofposition specified S1 (to tips of I/O connector pins) A8 z x y A37 Z4 A37 Z3 ...

Page 29 - Mounting dimension specifications; Description; Figure 4. Drive mounting dimensions—end view

Mounting dimension specifications Dim. Description inches mm A1 Drive height 0.668 16.97 A2 + tolerance on drive height 0.008 0.20 A3 – tolerance on drive height 0.008 0.20 A4 Drive width at mounting holes 2.750 69.85 A5 + and – tolerance on drive width at mounting holes 0.009 0.23 A6 Maximum drive ...

Page 31 - ATA interface connector; x. For applications that involve flexible cables or

2.5 ATA interface connector The drive connector is a 44-conductor connector with 2 rows of 22 malepins on 0.079-inch (2 mm) centers (see Figure 4 on page 21 and Figure5). The mating cable connector is a 44-conductor, nonshielded connectorwith 2 rows of 22 female contacts on 0.079-inch (2 mm) centers...

Page 33 - ATA interface signals and connector pins; Working Draft of the Proposed American National; AT bus signal levels; Logic Low

3.0 ATA Attachment-3 Interface (ATA-3) The drives in this manual comply with the ATA-3 Standard, proposed bythe X3T10 committee, a Technical Committee of Accredited StandardsCommittee X3, of the American National Standards Institute (ANSI). The X3T10 committee has been renamed to X3T13 to reflect it...

Page 34 - Figure 6. I/O pins and supported ATA signals

Reset– Ground DD7DD8DD6DD9DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DD0 DD15 Ground (removed) DMARQ Ground DIOW– Ground DIOR– Ground IORDY CSEL DMACK– Ground INTRQ IOCS16– DA1 PDIAG– DA0DA2 CS1FX–CS3FX– DASP– Ground PowerPower Ground Reserved Pins 28, 34 and 39 are used for master-slave communica...

Page 35 - Command name

3.2 ATA Interface commands 3.2.1 Supported ATA commands The following table lists supported ATA-standard and Seagate-specificdrive commands. For a detailed description of the ATA commands, referto the Draft Proposed ATA-3 Standard. See Section 3.2.4 on page 33 for details and subcommands used in the...

Page 37 - Identify Drive command; The Identify Drive command (command code EC; Word; Not used by this drive

The following commands contain drive-specific features that may not bedescribed in the Draft Proposed ATA-3 Standard. 3.2.2 Identify Drive command The Identify Drive command (command code EC H ) transfers information about the drive to the host following power-up. The data is organized asa single 51...

Page 40 - Set Features command

3.2.3 Set Features command This command controls the implementation of various features that thedrive supports. When the drive receives this command, it sets BSY,checks the contents of the Features register, clears BSY and generatesan interrupt. If the value in the register does not represent a feat...

Page 43 - Drive-Security commands; the master password to complete an Erase Unit command.

3.2.5 Drive-Security commands The drive-security commands provide a password-based security sys-tem to prevent unauthorized access to a disc drive. During manufacturing, the master password, SEAGATE, is set for thedrive, and the lock function is disabled. The system manufacturer ordealer may set a n...

Page 45 - Appendix. Compatibility notes

Appendix. Compatibility notes ECC testingWhen a Marathon 2250 or Marathon 1680 performs hardware-basedECC error correction on-the-fly, the drive does not report an ECC error.This allows ECC correction without degrading drive performance. Someolder drive diagnostic programs test ECC features by creat...