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textfiles/computers/HARDDRIVES/st9235n.txt

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2021-04-15 11:31:59 -07:00
SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
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<EFBFBD> United States +1 408 438-8771 <20> United Kingdom +44 628 478011 <20>
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<EFBFBD> Germany +49 89 140-9331 <20> Singapore +65 227-2217 <20>
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(C)opyright 1993
ST-9235NG
<20><> 40-pin I/O Connector (* see below)
TOP <20>
<20> 1
o o o o
<20>P<EFBFBD>W<EFBFBD>A<EFBFBD> :::::::::::.:::::::1 <20><><EFBFBD> <20> <20> <20>
<20>
pin-17 removed for keying <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Pin assignments for the Seagate 2.5" drive SCSI interface connector
(signal) (pin) (signal)
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ pin
Reserved (NC) <20> 1 2 <20> Reserved (ND) ID1 ID2 ID4
Reserved (NC) <20> 3 4 <20> Reserved (ND) ID <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ID1- <20> 5 6 <20> ID2- 0 <20> H H H
ID4- <20> 7 8 <20> LED 1 <20> L H H
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 2 <20> H L H
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ 3 <20> L L H
+5v <20> 1 2 <20> +5v 4 <20> H H L
+5v Ret <20> 3 4 <20> +5v Ret 5 <20> L H L
Ground <20> 5 6 <20> DB0- 6 <20> H L L
Ground <20> 7 8 <20> DB1- 7 <20> L L L
Ground <20> 9 10<31> DB2-
Ground <20> 11 12<31> DB3- H = high
Ground <20> 13 14<31> DB4- L = low
Ground <20> 15 16<31> DB5-
Connector Key <20> nopin 18<31> DB6-
Ground <20> 19 20<32> DB7-
Ground <20> 21 22<32> Parity-
Ground <20> 23 24<32> TRMPWR
ATN- <20> 25 26<32> BSY-
Ground <20> 27 28<32> ACK-
RST- <20> 29 30<33> MSG-
Ground <20> 31 32<33> SEL-
I/O- <20> 33 34<33> C/D-
Ground <20> 35 36<33> REQ-
+5v Ret <20> 37 38<33> +5v Ret
+5v <20> 39 40<34> +5v
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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)

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