=============================================================================== MAXTOR 25128A 2.5-Inch IDE DRIVE =============================================================================== 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: ................................. 128,235,520 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): ................... 2,550 tpi Bytes per Block: ........................... 512 Data Zones: ................................ 4 Sectors per track: ......................... 30-60 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 ......................... 1.19-2.29 To/from buffer (AT) ................... 8.0 Start time / power up (0-3,551 RPM) Typical ............................... 5 sec Stop time / power down Typical ............................... 3 sec Start/stop cycles .......................... 40,000 typical Interleave: ................................ 1:1 Buffer Size: ............................... 32K Interface: ................................. AT Recording Method: .......................... 1,7 RLL Recording Density (Kbpi) ................... 39-46 Flux Density (Kfci) ........................ 29-34 Power Requirements (Typical): Mode +5VDC 5% 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 .............................. 5#C to 55#C Non-operating .......................... -40#C to 60#C Thermal gradient ....................... 20#C 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) constitutes the average seek time specification. ======================================================================== +==============+=+=====================+=+============+ # +=+ +=+ =+==# # =+==# # #==============+ =+==# # # +=====+ # =+==# # # # 0 0 #J304 # +===+ =+==# # # # 0 0 #J305 # # # %==# # # # 0 0 #J306 # +===+ =+==# # # # *** #J308 # +==+ =+==# # # # 0 0 #J309 # #::# =+==# # # # 0 0 #J307 =====>#;;# =+==# # # +=====+ # #::# # # # +==============+ +==+ =+==# # +=+ +=+ =+==# +==============+=+=====================+=+============+ J306 J307 J308 J309 =======================================+====+====+====+====+ Master/Slave # # # # # Only Drive in single drive system* # # # J # # Master in dual drive system # # # J # # Slave in dual drive system # # # O # # =======================================+====+====+====+====* Reserved for factory # # # # # Normal operation* # # O # # O # Factory operation # # J # # J # =======================================+====+====+====+====* Idle Mode Latch # # # # # Option Disabled* # O # # # # Option Enabled # J # # # # ========================================+====+====+====+====+ *=Default J=Jumped O=Open J304 & J305 reserved for future use CMOS Configuration: Cyls Hds Write Landing Sec/Trk PreComp Zone 122.3MB Capacity --------------------------------- (128 Million Bytes) 981 10 0 0 17 2585A and 25128A are trademarks of Maxtor Corporation. AT is a registered trademark of IBM Corporation. Specifications subject to change without notice. Copyright 1992 Maxtor Corporation. ==============================================================================