===============================================================================
                             7171A\AT IDE DRIVE
===============================================================================

KEY FEATURES:

  * 14ms average seek               * 64K on-board cache w/concurrent xfer
  * Low power consumption           * Zone density recording 
  * 1:1 interleave                  * Dual drive master/slave support 
  * Rotary voice coil               * Automatic actuator lock 
  * Single-sided surface mount PCBA * Automatic error detection/correction
  * MTBF >300,00 POH @ 35C          * High Shock resistance (70 G's)

SPECIFICATIONS:

Formatted capacity: ........................ 172,547,072 Million Bytes
Bytes per sector:........................... 512
Integrated Controller/Interface: ........... AT 
Actuator type: ............................. Rotary Voice Coil
Number of Disks: ........................... 1
Data Surfaces: ............................. 2
Data Heads: ................................ 2
Servo: ..................................... Embedded
Tracks per surface (user): ................. 2,219
Tracks per surface (total): ................ 2,233
Sectors per surface (user): ................ 337,006
Sectors per surface (total): ............... 343,370
Track Density (average): ................... 2,762 tpi
Flux Density (average): .................... 38.0 kfci Max
Recording Density .......................... 50.6 kbpi Max
Data Zones per Surface: .................... 7

Sectors per track:
        Zone 1 ....................  96
        Zone 2 ....................  84
        Zone 3 ....................  80
        Zone 4 ....................  72
        Zone 5 ....................  67
        Zone 6 ....................  60
        Zone 7 ....................  57

PERFORMANCE (Typical):

Seek times* (ms)
     Track to track: ....................... 3
     Average: .............................. <=14
     Maximum: .............................. 27

Average latency (ms): ...................... 8.45
Spindle speed (+-0.1%): .................... 3,551 RPM
Controller overhead: ....................... 0.4 ms

Data transfer rate (Mbytes per sec)

  To/From Media (MB/sec): 
     Zone 1 ................................ 3.75
     Zone 2 ................................ 3.40
     Zone 3 ................................ 3.20
     Zone 4 ................................ 2.83
     Zone 5 ................................ 2.71
     Zone 6 ................................ 2.42
     Zone 7 ................................ 2.31

  To/From buffer (MB/sec): ................. 9.0
  To/from Interface (AT Peak Burst): ....... 8.0

Start time (0 - Drive Ready)
    Average ................................ <=6 Sec
    Maximum ................................ <=10 Sec

Stop Time/Power Down:
    Average ................................ <=3 Sec
    Maximum ................................ <=5 Sec

Power Requirements (Average):

    Mode         +12VDC +-8%  +5VDC +-5%  Power/Duration
    ----         -----------  ----------  --------------
    Spin-up        800mA peak  450mA peak  <10ms
    Read/Write*    135mA       460mA       3.95W
    Active*        130mA       435mA       3.75W
    Standby/Sleep* 2.5mA       325mA       1.65W

    *=Total RMS
    Maximum power supply ripple allowed: 100mV p-p, 0-20MHz

Physical:

    Height:  1.00"  ( 25.4 mm)
    Length:  5.75"  (146.1 mm)
    Width:   4.00"  (101.6 mm)
    Weight:  1.2 lb.  (0.5 kg)

Environmental:

Temperature (Degrees C)
    Operating (stabilized).................. 5C to 55C
    Thermal Gradient ....................... 20 C per hr
    Non-operating  
	Low temperature (-40C) per MIL-STD-810E, Method
	502.3, High Temperature per MIL-STD-810E, Method
	501.3, Climatic Catagory; Hot-induced Conditions

Humidity
    Operating  
	Per MIL-STD-810E, Method 507.3, 
        Test Procedure I, Natural Cycle 3

    Non-operating/Storage
        Per MIL-STD-810E, Method 507.3,
        Test Procedure IIb, Induced Cycle 5

Thermal Shock
    Low Temperature (-20C to +25C)
        Per MIL-STD-810E, Method 503.3, 
        Storage, Test Procedure I.<=10.0 minutes
        to specified operating performance

    High temperature and high humidity
    (+35C, 80%RH to +25C, 50%RH)
        Per MIL-STD-810E, Method 503.3, 
        Storage, Test Procedure I.<=10.0 minutes
        to specified operating performance


Altitude (relative to sea level)
    Operating .............................. -200 to 10,000 feet
    Non-operating .......................... 
        Per MIL-STD-810E, Method 500.3, 
        Low pressure (altitude) Test Procedure I. 
        Storage; Test Condition 2, Transport 
        aircraft cargo compartment pressure
    
Reliability and Maintenance:

MTBF ....................................... >300,000 power on hours (POH)
Start/Stop Cycles .......................... >=40,000
AFR ........................................ <=1.0%
Component design life ...................... 5 years (minimum)
Quality acceptance rate .................... 99.8% (2,000 DPPM)
Preventative Maintenance ................... None

Error Rates:

Non-recoverable data errors ................ <10 per 10^13 bits read

Shock & Vibration 
  (Shock measured at half-sine pulse)

  Non-operating (transportation) shock
        Per MIL-STD-810E, Method 516.4, 
        Test Procedure VI, Bench Handling
	(stand along configuration)

        Per MIL-STD-810E, Method 516.4, 
        Test Procedure III, Fragility
	(stand along configuration)

    Critical Velocity ...................... 65 Gs at 68 in/sec
    Critical Acceleration .................. 100 Gs 
        (Constant Velosity at 160 in/sec)
    Half sine pulse shocks
        10 hits per axis, 30 total, no data loss
        allowed: 70 Gs, 11ms (no erreors)

 Operating Shock .......................... 10Gs, 11ms (no errors)
    
    Non-operating, random vibration 
        Per MIL-STD-810E, Method 514.4, 
        Basic transportation, Vertical Axis PSD
        profile, 10-500 Hz, 60 minuts/axis

    Operating, random vibration 
        Per MIL-STD-810E, Method 514.4, 
        Basic transportation, Vertical Axis PSD
        profile, 10 minuts/axis

        10 Hz at 0.0004 G^2/Hz
        40 Hz at 0.0004 G^2/Hz
        500 Hz at 0.00004 G^2/Hz

    Operating, swept sine vibration (1 octave/minute)

        5 - 20 Hz ......................... 0.049" (double amplitude)
        20 - 300 Hz ....................... 1.5 Gs peak amplitude

Acoustic Noise:

    Sound power (per ISO 7779) ............. 3.9 belA
    Sound pressure ......................... 32.2 dBA
     (1 meter perpendicular to top cover)

EMC/EMI:

    Radiated electromagnetic field emissions
        3db minimum belo FCC and VDE Class B 
        limits (stand alone test configuration)

    Radiated magnetic field emissions
        Minimum of VDE Class B and MIL-STD-461/462,
        Method RE01 (Stand alone test configuration)

    Radiated electromagnetic field immunity
        <= 4 volts/meter rms (50kHz to 1,000 MHz,
        stand alone test configuration)

    Radiated magnetic field immunity
        Per MIL-STD-461/462, Method RD01 (15 Hz 
        to 100 kHz, stand alone test configuration)

*   At nominal DC input voltages
**  The average of 10,000 random seek times (measured on independent
    test equipment) constitutes the average seek time specification.

==============================================================================

         7171A JUMPER DESIGNATION         J24J23J22J20J19J18J17J16
    +-------------------------------------+---+---+---+---+---+---+---+---
     Cable Select                                                
      Disabled*                           O                      
      Enabled                             J                      
    +-------------------------------------+---+---+---+---+---+---+---+---
     Write Cache                                                 
      Enabled*                               O                   
      Disabled                               J                   
    +-------------------------------------+---+---+---+---+---+---+---+---
     Conner Compatibility Jumper                                 
      Disabled*                                 O                
      Enabled                                   J                
    +-------------------------------------+---+---+---+---+---+---+---+---
     Master/Slave                                                
      Only drive in single drive system*           J             
      Master in dual drive system                  J             
      Slave in dual drive system                   O             
    +-------------------------------------+---+---+---+---+---+---+---+---
     Spare Jumper                                                
      Present*                                        J          
      Not Present                                     O          
    +-------------------------------------+---+---+---+---+---+---+---+---
     Low Power Spin Mode                                         
      Disabled*                                          O       
      Enabled                                            J       
    +-------------------------------------+---+---+---+---+---+---+---+---
     ECC                                                         
      11-Bit*                                               O    
      4-Bit emulation                                       J    
    +-------------------------------------+---+---+---+---+---+---+---+---
     I/O Channel Ready                                           
      Disabled*                                                O 
      Enabled                                                  J 
    +---------------------------------------------------------------------+
      J=Jumpered O=Open *=Default  Note: Jumper J25 factory reserved. 
      Jumper J19 may be used to store shunt if used in slave mode.


+-----+  +------------------+     +--+  +-------------+     +--+  +---------+
     +--+                  +-----+  +--+             +-----+  +--+         ++
                                                            +----+       +---+
 +              +------------------------------------------>::::          
        +----------------+                                  +----+          
             J24 J22                                         +   +--+     
          +---+---+-+                                            ,,     
           * * * *               +---------------------------->::     
           * * * *       +---------------+                     ::  J1 
          +-+---+---+          +-----+                         +--+     
           J25 J23          J20+ ===                                   
        +----------------+        === +J19                               
                              J18+ * *       +                           
                                  * * +J17                               
                              J16+ * *                                   
       +                         +-----+                               +---+
                             +---------------+                          +----+
                                                                   +        
                                                                            
                                                                         J3 
    +--+                 +-----+   +--+                +----+  +--+         
+----+  +-----------------+     +---+  +----------------+    +--+  +----------+

                            CMOS Configuration:     

                    Cyls   Hds  Write  Landing Sec/Trk
                                PreComp  Zone
                    ----------------------------------
                    866    15     0       0       26

            Yields: 172.5 Million Bytes (Approx. 164.5 MegaBytes)


              7171A & 7171S are trademarks of Maxtor Corporation.
               AT is a registered trademark of IBM Corporation.
               Specifications subject to change without notice.
                      Copyright 1994 Maxtor Corporation.
                        Rev B    11/4/95    Anderson
==============================================================================

