Sega GENESIS II Service Manual page 17

IC2/3
IC HM65256BLFP-10
Pans No. : 315-0547-lOA
IC TC81832AFL-10
Pans No. : 315-0759-lOA
• Outside View
28
15
14
6ruwnnni!IIIIIIIIIIIIJ
• Operation Mode
CE
I
OE
I
WE
1/0
L I L H I LowZ
L
X
L HighZ
L H H
HighZ
H L
X
HighZ
H H
X
HighZ
• Block Diagram
~
o---_._--t--1
RUD IlliTE lllNTRa.
({ o----_._-1
~~----~====r---~
IC TC51832FL-10
Pans No. : 315-0677-A
IC LH5P832N-12
Pans No.: 315-0760-12A
IC TC51832AFL-85
Pans No. : 315-0759-85A
• Pin Layout
MODE
Read
Write
-
Refresh
Standby
A.,
A,
A,
A ..
O"E
17