DOUBLE-DENSITY
DISK
CONTROLLER
17--3
Integrated
Circuits
(Cont'd.)
COMPONENT
NUMBER
U7
U8
U9
U10
U11
PART
NUMBER
HE 443-730
HE 443·727
HE 150-107
HE 443-757
HE 443·805
MAYBE
REPLACED
WITH
74LS74
96L02
LOCO
II
16 MHz
Ose.
74LS161
74LS273
IDENTIFICATION
RIPPLE
OUTPUTS
CARRY
OUTPUT
15
I 7
CLEAR
CLOCK
C
ENABLE
-----..----
P
DATA
INPUTS
