SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) /----------------------------------+---------------------------------\ | United States +1 408 438-8771 | United Kingdom +44 628 478011 | +----------------------------------+---------------------------------| | Germany +49 89 140-9331 | Singapore +65 227-2217 | \----------------------------------+---------------------------------/ (C)opyright 1993 ST-9235AG and ST-9235A TOP /- 44-pin I/O Connector (* see below) | o o ::::::::::::o::::::::1 o o =P=W=A===========#================== | | | pin-20 removed for keying ---------------/ | | | | | | Drive is Master, no Slave drive present ------------------ 0 0 Drive is Master, Seagate Slave drive present ------------- 1 0 Drive is Slave to another Seagate 2.5" Master ------------ 0 1 Reserved Position (Do Not Use) --------------------------- 1 1 * Drive uses +5vdc power supplied to the drive via the interface connector. The drive does NOT make use of a +12vdc power line. pin-41 +5vdc (Logic) pin-42 +5vdc (Motor) pin-43 Ground pin-44 Reserved ST-9235AG UNFORMATTED CAPACITY _____________________ FORMATTED CAPACITY (xx SECTORS) __________209.7 ACTUATOR TYPE ____________________________ROTARY VOICE COIL TRACKS ___________________________________ CYLINDERS ________________________________ HEADS ____________________________________6 DISCS (2.5 in) ___________________________3 MEDIA TYPE _______________________________THIN FILM HEAD TYPE ________________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (2,7) INTERNAL TRANSFER RATE (mbits/sec) _______up to 16 SPINDLE SPEED (RPM) ______________________3,449 AVERAGE LATENCY (mSEC) ___________________8.69 BUFFER ___________________________________64 Kbyte Multisegmented cache INTERFACE ________________________________AT SECTORS PER DRIVE ________________________409,760 TPI (TRACKS PER INCH) ____________________2,750 BPI (BITS PER INCH) ______________________45,500 FCI (FLUX DENSITY) _______________________30,300 AVERAGE ACCESS (ms) ______________________16 SINGLE TRACK SEEK (ms) ___________________5 MAX FULL SEEK (ms) _______________________27 MTBF (power-on hours) Office _____________150,000 SHOCK (G's): ST9235A operating/nonoperating _______10/150 ST9235AG operating/nonoperating _______100/150 SafeRite shock sensor POWER REQUIREMENTS: +5V START-UP (amps) __1.2 POWER MANAGEMENT (Watts): ACTIVE _______________1.8 IDLE _________________0.7 STANDBY ______________0.17 SLEEP ________________0.17 WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO IBM AT DRIVE TYPE ________________________* Physical: Height (inches/mm): 0.75/19.05 Width (inches/mm): 2.76/70.10 Depth (inches/mm): 4.01/101.85 Weight (ozs/kg): 7.25/0.21 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE. (see below) Possible translation: 985 cyl, 13 heads, 32 sectors = 209,797,120 Note: A "custom" or "user-definded" CMOS drivetype may ask for a numerical value for the Write Precompensation cylinder and for the Landing Zone cylinder. A basic rule-of-thumb for drive models that do not require the old Write Precomp technique or a Landing Zone because they are Auto-Parking is to add 1 to the cylinder value being used. As an example: If cylinders equaled 820, then both Write Precomp and Landing Zone would be entered as 821. Some BIOS will convert this to 65535 or -1, which are functionally equivalent to "none (not used)". PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION ZBR = Zone Bit Recording = Variable sectors per track Already low-level formatted at the factory. Since a User-definable or Custom translation geometry may be used, it is imperative that the values be written down and kept with your permanent records for retrieval in the event of CMOS battery failure. Seagate reserves the right to change, without notice, product offerings or specifications. (05/12/93)