=============================================================================== 7425AV IDE DRIVE =============================================================================== KEY FEATURES: * 12ms average seek * 32K on-board buffer * 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 * 3551 RPM Rotational speed * Energy Star compliant * Multi-Word DMA Mode 1 SPECIFICATIONS: Formatted capacity: ........................ 426,997,760 Bytes Bytes per sector:........................... 512 Integrated Controller/Interface: ........... AT Actuator type: ............................. Rotory Voice Coil Data Surfaces: ............................. 2 Data Heads: ................................ 2 Servo: ..................................... Embedded Tracks per surface (user): ................. 3,709 Track Density (tpi): ....................... 3,200 maximum Flux Density (kfci): ....................... 55.40 maximum Encoding Method: ........................... RLL 1,7 Data Zones per Surface: .................... 10 Buffer Size: ............................... 64K Interleave: ................................ 1:1 PERFORMANCE: Seek performance (including settling time and servo overhead)* Seek times* (ms) Track to track: ....................... 3 Average: .............................. 12 ** Maximum: .............................. 31 Average latency (ms): ...................... 8.45 Spindle speed (+-0.1%): .................... 3551 RPM Controller overhead: ....................... 0.5 ms Data transfer rate (Mbytes per sec) To/From Media (MB/sec): .................. 2.87 - 5.36 To/from Host (without I/O CHRDY): ........ PIO Mode 3, 11.11MBs, 180ns To/from Host (with I/O CHRDY): ........... 13.33MBs, 150ns DMA Transfers (sustained) ................ Mode 0 DMA Transfers (burst) .................... Mode 1 Start time (0 - Drive Ready) Average .................................. <=9 sec Maximum .................................. <=20 sec Stop Time/Power Down: Average .................................. <=3.5 sec Maximum .................................. <=5 sec Power Requirements - Single Disk (Average) Mode +12VDC +-8% +5VDC +-5% Power/Duration ---- ----------- ---------- -------------- Spin-up 705mA 345mA 10.10W 1 sec max. Read/Write 169mA 325mA 3.65W Active 178mA 321mA 3.74W Idle 139mA 319mA 3.26W Standby 1mA 91mA 0.47W Sleep 1mA 63mA 0.33W Maximum power supply ripple allowed: 100mV peak to peak, 0-2MHz Power Mode Definitions: Spin-up The drive is spining up following initial application of power and has yet not reached full speed. Maximum current draw lasts 1 second. Read/Write Data is being read or written to the drive. Active The drive is spinning and most circuitry is powered on. The drive is capable of responding to read commands in the shortest possible time. Read/Write heads are positioned over the data area. Idle The drive is spinning., the actuator is parked and powered off, and all other circuitry is powered on. The drive is capable of responding to read commands within 40ms. Standby The spin motor is not spinning. The drive will leave this mode upon receipt of a command that requires disk access. The time-out value for this mode is programmable. The buffer is active to accept write data. A program called GREENDRV.ZIP is available on the Maxtor BBS (303-678-2222), that will allow you to program this delayed standby mode. Sleep This is the lowest power state. The interface becomes inactive. A software or hareware reset is required to return the drve to Standby. 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 20C/Hr max Non-operating/Storage .................. -40C to 71C Humidity *** Operating .............................. 5% to 95% non-condensing Non-operating/Storage .................. 5% to 95% non-condensing Thermal Shock Low Temperature (-20C to +25C) .......... MIL-STD-810E Method 503.3 High Temperature & Humidity ............. MIL-STD-810E Method 503.3 (+35C, 80%RH to +25C, 50%RH) Altitude (relative to sea level) Operating .............................. -200 to 10,000 feet Non-operating .......................... MIL-STD-810E Method 503.3 Reliability and Maintenance: MTBF ....................................... >300,000 hours Preventative Maintenance ................... None Component design life ...................... 5 years (minimum) Data reliability............................ <10 per 10^12 bits read Start/Stop Cycles........................... > 20,000 Shock & Vibration (typical) Operating Shock ........................ 15 Gs Non-Operating Shock .................... 70Gs Operating Vibration (without non-recoverable errors) 10Hz ............................... .004 GxG/Hz 40Hz.................................. .004 GxG/Hz 500Hz.................................. .00004 GxG/hz Non-operating Vibration (without non-recoverable errors) 10Hz.................................. .0015 GxG/Hz 40Hz.................................. .0015 GxG/Hz 500Hz.................................. .000015 GxG/hz 20-300 Hz ............................ 1.0 G peak Acoustic Noise Sound power (per ISO 7779) ............. 3.5 belA * At nominal DC input voltages ** The average of 10,000 random seek times (measured on independent test equipment) constitutes the average seek time specification. *** Operating and non-operating specs meet MIL-STD-810E. Method 507.3 Table 507.3-I High humidity diurnal category. Natural, High Humidity, Cyclic (Cycle 3) ============================================================================== 7425AV JUMPER DESIGNATION |J24|J23|J20| +=====================================+===+===+===+ | Cable Select | | | | | Disabled* | O | | | | Enabled | J | | | +=====================================+===+===+===+ | Write Cache | | | | | Enabled* | | O | | | Disabled | | J | | +=====================================+===+===+===+ | Master/Slave | | | | | Only drive in single drive system* | | | J | | Master in dual drive system* | | | J | | Slave in dual drive system | | | O | +=====================================+===+===+===+ J=Jumpered O=Open *=Default Note: Jumper J21 is factory reserved. +=====+ +==================+ +==+ +=============+ +==+ +=========+ | +==+ +=====+ +==+ +=====+ +==+ ++ | +=====+ +=+++ | + /====================================>|#::::| * | | #=======/=========+ +=====+ * | | | J21 J23 | + * | | | +===+===+===+ | * | | | | * @@@ | | * | | | | * | | *J1 | | | +=+===+===+=+ | * | | | J20 J22 J24 | * | | +=================+ * | | + * | | * | | * | | + 1+==++ | +===++ | + 1# | | # | | # J2 | | +==+ +=====+ +==+ +====+ +==+ # | +====+ +=================+ +===+ +================+ +==+ +=====+====+ CMOS Configuration: Cyls Hds Write Landing Sec/Trk PreComp Zone ---------------------------------- 1000 16 0 0 52 Yields: 425 Million Bytes 7850AV & 7425AV are trademarks of Maxtor Corporation. AT is a registered trademark of IBM Corporation. Specifications subject to change without notice. Copyright 1994, 1994 Maxtor Corporation. Rev A 12/10/94 Anderson ==============================================================================