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                      MAXTOR "APACHE" 2585A IDE DRIVE
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KEY FEATURES:

  * 15ms average seek               * 32K on-board cache  
  * Ultra-low power consumption     * >250,000 hour MTBF
  * 1:1 interleave                  * Automatic actuator lock 
  * Single-sided surface mount PCBA * 100 Gs shock resistance
  * Embedded AT controller          * High data transfer rate
  * Automatic error detection & correction

SPECIFICATIONS:

Formatted: ................................. 85,417,984 bytes
Embedded Controller: ....................... AT 
Actuator type: ............................. Rotary Voice Coil
Number of Disks: ........................... 2
Data Surfaces: ............................. 4
Data Heads: ................................ 4
Servo: ..................................... Embedded
Tracks per surface: ........................ 1,092
Track Density (average): ................... 1,993 tpi
Bytes per Block: ........................... 512
Data Zones: ................................ 4
Sectors per track: ......................... 24-48

PERFORMANCE (Typical):

Seek times* (ms)
     Track to track: ....................... 3
     Average: .............................. 15 
     Maximum: .............................. 27

Average latency (ms) ....................... 8.4
Rotation speed ............................. 3,551 RPM
Controller overhead ........................ 1 ms

Data transfer rate (Mbytes per sec)
     To/from media ......................... 0.95-1.81
     To/from buffer (AT) ................... 8.0
Start time / power up (0-3,551 RPM)
     Typical ............................... ó5 sec
Stop time / power down
     Typical ............................... ó3 sec
Start/stop cycles .......................... 40,000 typical
Interleave: ................................ 1:1
Buffer Size: ............................... 32K
Interface: ................................. AT 
Recording Method: .......................... 1,7 RLL
Recording Density (Kbpi) ................... 31-39
Flux Density (Kfci) ........................ 23-29

Power Requirments (Typical):

    Mode             +5VDC ñ5%         Power
    Spin-up           970mA Avg Peak
    R/W               440mA            2.2W
    Idle              220mA            1.1W
    Standby / Sleep    40mA            0.2W

Physical:

    Height:  0.69" (17.5 mm)
    Length:  4.00" (101.6 mm)
    Width:   2.75" (69.84 mm)
    Weight:  0.374 lbs.(170 gm)

Environmental:

Temperature 
    Operating .............................. 5øC to 55øC
    Non-operating .......................... -40øC to 60øC
    Thermal gradient ....................... 20øC per hour max
Humidity
    Operating .............................. 5% to 90% non-condensing
    Non-operating .......................... 5% to 90% non-condensing
Altitude (relative to sea level)
    Operating .............................. -200 to 10,000 feet
    Non-operating .......................... 40,000 feet max
    
Reliability and Maintenance:

MTBF ....................................... >250,000 hours 
                                             (POH, predicted at 35 degrees C)
Preventative Maintenance ................... None
Component design life ...................... 5 years (minimum)
Data reliability
     Hard read errors ...................... <10 non-recoverable 
                                              per 10 to the 14th bits read
Shock & Vibration (typical)
          Shock measured at half-sine pulse. Vibration 
          measured at swept sine, 1 octave per minute
    Operating shock ........................ 100 Gs, 11ms 1/2 sine wave
    Non-operating shock .................... 10 Gs, 11ms  1/2 sine wave 
    Non-operating Vibration 
     5-20 Hz ............................... .245" (double amplitude)
     20-500 Hz ............................. 5 Gs peak amplitude
    Operating Vibration
     5-20 Hz ............................... .049" (double amplitude)
     20-300 Hz ............................. 1 Gs peak amplitude
Acoustic Noise
    34 dBA at 1 meter (typical) in idle (spinning) on-track mode.

*  The average of 10,000 random seek times (measured on independent
   test equipment) consitutes the average seek time specification.

   2585A and 25128a are trademarks of Maxtor Corporation.
   Specifications subject to change without notice.

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