=============================================================================== 7546A IDE DRIVE =============================================================================== KEY FEATURES: * 12ms average seek * 256K on-board multi-segmented cache * 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 * 4500 RPM Rotational speed * Energy Stary compliant * Multi-Word DMA Mode 1 * Certified Windows NT Compatible * SPECIFICATIONS: Formatted capacity (w/o OS limitation): .... 547,061,760 Bytes Formatted capacity (w/ OS limitation): ..... 528,482,304 Bytes Bytes per sector:........................... 512 Integrated Controller/Interface: ........... AT Actuator type: ............................. Voice Coil Number of Disks: ........................... 2 Data Surfaces: ............................. 4 Data Heads: ................................ 4 Servo: ..................................... Embedded Tracks per surface (user): ................. 2,771 Tracks per surface (total): ................ 2,793 Sectors per surface (user): ................ 1,075,756 Sectors per surface (total): ............... 1,095,752 Track Density (average): ................... 3,050 tpi Flux Density (average): .................... 51.4 kfci Data Zones per Surface: .................... 8 Sectors per track: Zone 1 .................... 114 Zone 2 .................... 112 Zone 3 .................... 108 Zone 4 .................... 102 Zone 5 .................... 96 Zone 6 .................... 88 Zone 7 .................... 80 Zone 8 .................... 72 PERFORMANCE (Typical): Seek times* (ms) Track to track: ....................... 1.5 Average: .............................. 12 ** Maximum: .............................. 28 Average latency (ms): ...................... 6.66 Spindle speed (+-0.1%): .................... 4,500 RPM Controller overhead: ....................... 0.4 ms Data transfer rate (Mbytes per sec) To/From Media (MB/sec): .................. 3.5 - 5.6 To/from Interface (AT Peak Burst): ....... 11.1 Start time (0 - Drive Ready). .............. 6 sec Avg. Start Time (from sleep mode): .............. 6 sec Avg. Stop Time/Power Down: ...................... 3 sec Avg. Power Requirements (Average): Mode +12VDC +-8% +5VDC +-5% Power/Duration ---- ----------- ---------- -------------- Spin-up 1500mA 100mA 18.5W/3 sec max. Seek 333mA 200mA 5.0W Read/Write 220mA 200mA 3.7W Idle 210mA 200mA 3.7W Park 150mA 100mA 2.3W Standby/Sleep 40mA 50mA 0.7W Physical: Height: 1.00" ( 25.4 mm) Length: 5.75" (146.1 mm) Width: 4.00" (101.6 mm) Weight: 1.2 lbs. (0.5 kg) Environmental: Temperature (Degrees C) Operating (stabilized).................. 5C to 50C Non-operating .......................... -40C to 71C Thermal Gradient ....................... 20 C per hr Humidity *** Operating .............................. 5% to 95% non-condensing Non-operating .......................... 5% to 95% non-condensing Maximum wet bulb ....................... 27.6 Maximum Gradient / hr .................. 20% Altitude (relative to sea level) Operating .............................. -200 to 10,000 feet Non-operating .......................... MIL-STD-810E Reliability and Maintenance: MTBF ....................................... >300,000 hours Preventative Maintenance ................... None Component design life ...................... 5 years (minimum) Data reliability............................ <10 per 10^13 bits read Seek Error Rate ............................ <=10^7 Shock & Vibration (typical) Operating Shock ........................ 10 Gs, 11ms (no errors) Non-Operating Shock .................... 70Gs Operating Vibration (without non-recoverable errors) 5-20Hz ............................... .049" 20-300Hz ............................. 1.5G Non-operating Vibration (without non-recoverable errors) 5-20 Hz ............................... .05" 20-300 Hz ............................. 1.0 G peak Acoustic Noise Sound power (per ISO 7779) ............. 3.9 belA Sound pressure ......................... 32.2 dBA * 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) ============================================================================== 7345A JUMPER DESIGNATION |J24|J23|J22|J20|J19|J18|J16| +=====================================+===+===+===+===+===+===+===* | Cable Select | | | | | | | | | Disabled* | O | | | | | | | | Enabled | J | | | | | | | +=====================================+===+===+===+===+===+===+===* | Write Cache | | | | | | | | | Enabled* | | O | | | | | | | Disabled | | J | | | | | | +=====================================+===+===+===+===+===+===+===* | Default Parameters (for auto-detect)| | | | | | | | | 1060 X 16 X 63* | | | O | | | | | | 1024 X 16 X 63 | | | J | | | | | +=====================================+===+===+===+===+===+===+===* | Master/Slave | | | | | | | | | Only drive in single drive system* | | | | J | | | | | Master in dual drive system* | | | | J | | | | | Slave in dual drive system | | | | O | | | | +=====================================+===+===+===+===+===+===+===* | Deffered Spin up | | | | | | | | | Spin drive on power up* | | | | | O | | | | Defer spin until 1st read/write | | | | | J | | | +=====================================+===+===+===+===+===+===+===* | Low Power Spin Mode | | | | | | | | | Disabled* | | | | | | O | | | Enabled | | | | | | J | | +=====================================+===+===+===+===+===+===+===* | I/O Channel Ready | | | | | | | | | Disabled | | | | | | | O | | Enabled* | | | | | | | J | +=====================================+===+===+===+===+===+===+===+ J=Jumpered O=Open *=Default Note: Jumpers J25 and J17 factory reserved. Do not use. The jumper located on the ground pins of J22 & J23 is a spare. +=====+ +==================+ +==+ +=============+ +==+ +=========+ | +==+ +=====+ +==+ +=====+ +==+ ++ | +====+ +=+++ | + /==========================================>|::::| * | | #=======/========+ +====+ * | | | J24 J22 | + +==+ * | | | +===+===+=+ | |,,| * | | | | @@@ | | /============================>|::| * | | | | | | #=======/=======+ |;;| *J1 | | | +=+===+===+ | | +=====+ | +==+ * | | | J25 J23 | | J20+ @@@ | | * | | +================+ | | +J19+| * | | | J18+ | | + * | | | | +J17 | * | | | J16+ @@@ | | * | | + | +=====+ | +==++ | +===============+ +===++ | + # | | # | | # J3 | | +==+ +=====+ +==+ +====+ +==+ # | +====+ +=================+ +===+ +================+ +==+ +=====+====+ CMOS Configuration: Cyls Hds Write Landing Sec/Trk PreComp Zone ---------------------------------- (w OS limitation) 1024 16 0 0 63 Yields: 528 Million Bytes (Approx. 504 Mega-Bytes) (w/o OS limitation) 1060 16 0 0 63 Yields: 547 Million Bytes (Approx. 521.7 Mega-Bytes) 7546A are trademarks of Maxtor Corporation. AT is a registered trademark of IBM Corporation. Specifications subject to change without notice. Copyright 1994 Maxtor Corporation. Rev C 4/26/94 Anderson ==============================================================================