Seagate 810 manual Recording and interface technology, Physical dimensions

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6Marathon 810 (ST9816AG) Product Manual, August 1995

1.3 Recording and interface technology

Interface	ATA
Recording method	RLL (1,7)
Recording density (bits/inch)	90,000
Flux density (flux change/inch)	67,500
Track density (tracks/inch)	3,807
Areal density (Mbits/inch2)	342
Spindle speed (RPM)	4,500
( ± 0.5%)
Internal data-transfer rate	44
(Mbits per sec max—ZBR)
I/O data-transfer rate	16.6 (PIO mode 4 with IORDY)
(Mbytes per sec max)	16.6 (multiword DMA mode 2)
Interleave	1:1
Cache buffer (Kbytes)	120

1.4 Physical dimensions

Height (max) inches	0.754
(mm)	(19.15)
Width (max) inches	2.76
(mm)	(70.10)
Depth (max) inches	4.010
(mm)	(101.85)
Weight (typical) ounces	7.4
(kg)	(0.21)

Note. Maximum depth excludes I/O connector pins, which may extend up to 0.010 inches beyond the edge of the head/disc assembly.

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Contents Marathon ATA Interface Drive Page Marathon 810 ST9816AG ATA Interface Drive Page Contents Appendix. Compatibility notes Drive mounting and configurationATA interface Figures Page Introduction Specification summary table Drive Specification ST9816AGRead/Write power and current typical Page Formatted capacity Drive specificationsDefault logical geometry Supported translation geometriesPhysical dimensions Recording and interface technologySeek time Power specificationsPower consumption Startup timesTypical watts RMS Typical amps RMS Mode At nominal voltage Typical current profileConducted noise Power recoveryPower-management modes Voltage toleranceRelative humidity Environmental tolerances Ambient temperatureTemperature gradient Operating shock AltitudeShock Nonoperating shockDrive acoustics Mode TypicalNonoperating vibration ReliabilityAgency certification Safety certification FCC verificationMarathon 810 ST9816AG Product Manual, August Jumper settings Master/slave configuration Drive mounting and configurationHandling and static-discharge precautions Connector and master/slave jumper setup for the ST9816AG Drive mounting Remote LED configurationJumper For pins Configuration Mounting dimensions for the ST9816AG ATA interface connector Dimensions are in inches mmPage ATA interface ATA interface signals and connector pinsAT bus signal levels O pins and associated ATA signals supported by the ST9816AG ATA Interface commands Supported ATA commands NOPSeagate-specific commands Command Supported by Command name Code ST9816AGATA-standard power-management commands Identify Drive command Word Description ST9816AGXxxx H Word Bit Description if bit is set to Set Features command ECC testing Appendix. Compatibility notes