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 1991 ST-4767N (94601-767H) Wren Runner 2 FH SCSI-2 /-- Some 16-pin configurations may not have these pins. | | #=============================# /-4-3-2-1-\ =====P=W=A=====#==#:::SCSI:Cable:::::::::::::::1#=# 0 0 0 0 #== /-\ | \=============================/ \-5-G-G-12/ |o|o o o o o o(o)o /--------1/--------1/--------1 Power +o+o o o o o o(o)o \--------/\--------/\--------/ \-/ 4 2 1 M P | | Terminator Resistor SIPS | --+-- | | | | | | | | | \- Reserved | | | | \--- Motor Start Delay ( 16 sec * ID) | | | \----- Parity option enable | | \------- Motor Start option enable | \----------- Drive ID's, ID 0 (none) if only SCSI device \----------------+ Terminator power from Drive (vertical) \ Terminator power from Bus (lower horizontal) ST-4767N 94601-767H/M WREN RUNNER FH UNFORMATTED CAPACITY (MB) ________________767 FORMATTED CAPACITY (64 SECTORS) (MB) _____665 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________20340 CYLINDERS ________________________________1356 HEADS ____________________________________15 DISCS ____________________________________8 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (1,7) TRANSFER RATE (mbytes/sec) _______________3 SPINDLE SPEED (RPM) ______________________4,800 AVERAGE LATENCY (mSEC) ___________________6.25 BUFFER ___________________________________256 Kbyte Read Look-Ahead, Adaptive, Multi-Segmented Cache INTERFACE ________________________________SCSI-2 TPI (TRACKS PER INCH) ____________________1,600 BPI (BITS PER INCH) ______________________30,600 AVERAGE ACCESS (ms) ______________________11.9 SINGLE TRACK SEEK (ms) ___________________2.5 MAX FULL SEEK (ms) _______________________26 MTBF (power-on hours) ____________________150,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 +12V TYPICAL (amps) __1.6 +5V START-UP (amps) __1.1 +5V TYPICAL (amps) ___0.8 TYPICAL (watts) ______27 MAXIMUM (watts) ______60 BUFFERED STEP PULSE RATE (micro sec) _____ WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________0 or NONE Already low-level formatted at the factory. Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)