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 1991
ST-4376N (94171-376 or -344) Wren 4 FH SCSI
Connects CHASIS ground to ground lug �������������Ŀ
Connects SIGNAL ground to ground lug �����������Ŀ �
Drive Select ID's ������Ŀ � �
Motor Start Option enable ��Ŀ � G G
Parity Check Option enable Ŀ � ���Ŀ �1�2�
P M 4 2 1 �o�o� �12�G�G�5Ŀ
o o o o o �o�o� � 0 0 0 0 � Power
o o o o o ���� \���������/
���������������������������������������������������������������Servo�PWA�
���������������������������������������������������������������Data�PWA��
1�������� �:::SCSI Cable::::::::::::1 � �Ŀ 1���������
Terminator DIP ���������������������������; �o� o Terminator DIP
�o��o
���
Terminator power (+5v) from drive (vertical) ����
Terminator power from the Bus (lower horizontal)
ST-4376N
94171-376/M WREN 4 FH
UNFORMATTED CAPACITY (MB) ________________376
FORMATTED CAPACITY (xx SECTORS) (MB) _____330
AVERAGE SECTORS PER TRACK ________________45
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________13914
CYLINDERS ________________________________1549
HEADS ____________________________________9
DISCS ____________________________________5
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.125-1.875
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________32 Kbyte
Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1280
BPI (BITS PER INCH) ______________________19058
AVERAGE ACCESS (ms) ______________________17.5
SINGLE TRACK SEEK (ms) ___________________4
MAX FULL SEEK (ms) _______________________43
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __1.4
+5V START-UP (amps) __1.9
+5V TYPICAL (amps) ___1.5
TYPICAL (watts) ______27
MAXIMUM (watts) ______64
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
ZBR = Zone Bit Recording = Variable sectors per track
Already low-level formatted at the factory.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)
