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-9235NG /- 40-pin I/O Connector (* see below) TOP | | 1 o o o o =P=W=A= :::::::::::.:::::::1 ==o o o o | pin-17 removed for keying ----------------/ Pin assignments for the Seagate 2.5" drive SCSI interface connector (signal) (pin) (signal) /----------\ pin Reserved (NC) | 1 2 | Reserved (ND) ID1 ID2 ID4 Reserved (NC) | 3 4 | Reserved (ND) ID /----------- ID1- | 5 6 | ID2- 0 | H H H ID4- | 7 8 | LED 1 | L H H \----------/ 2 | H L H /----------\ 3 | L L H +5v | 1 2 | +5v 4 | H H L +5v Ret | 3 4 | +5v Ret 5 | L H L Ground | 5 6 | DB0- 6 | H L L Ground | 7 8 | DB1- 7 | L L L Ground | 9 10| DB2- Ground | 11 12| DB3- H = high Ground | 13 14| DB4- L = low Ground | 15 16| DB5- Connector Key | nopin 18| DB6- Ground | 19 20| DB7- Ground | 21 22| Parity- Ground | 23 24| TRMPWR ATN- | 25 26| BSY- Ground | 27 28| ACK- RST- | 29 30| MSG- Ground | 31 32| SEL- I/O- | 33 34| C/D- Ground | 35 36| REQ- +5v Ret | 37 38| +5v Ret +5v | 39 40| +5v \----------/ ST-9235N UNFORMATTED CAPACITY _____________________ FORMATTED CAPACITY (xx SECTORS) __________209.8 ACTUATOR TYPE ____________________________ROTARY VOICE COIL TRACKS ___________________________________ LOGICAL CYLINDERS ________________________985 LOGICAL HEADS ____________________________13 LOGICAL SECTORS PER TRACK ________________32 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 ___________________________________128 Kbyte INTERFACE ________________________________SCSI BYTES PER TRACK __________________________ 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) operating/nonoperating _______10/150 NG model with 'SafeRite' ______________100/150 POWER REQUIREMENTS: +5V START-UP (amps) __1.3 POWER MANAGEMENT (Watts): ACTIVE _______________2.5 STANDBY ______________1.8 SHUTDOWN _____________1.08 WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO IBM AT DRIVE TYPE ________________________0 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 ZBR = Zone Bit Recording = Variable sectors per track Seagate reserves the right to change, without notice, product offerings or specifications. (08/17/93)