SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) ��������������������������������������������������������������������Ŀ � United States +1 408 438-8771 � United Kingdom +44 628 478011 � ��������������������������������������������������������������������Ĵ � 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 ��� � � � � pin-17 removed for keying ����������������� Pin assignments for the Seagate 2.5" drive SCSI interface connector (signal) (pin) (signal) ����������Ŀ 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 ����������Ŀ 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)