XVME-100 Manual
March, 1987
2.5 I N S T A L L I N G MEMORY CHIPS ON T H E XVME-100
As was previously mentioned, there arc a total o f t i g h t 32-pin sockets intended f o r
use b y R A M , E P R O M , EEPROM, a n d M a s k Programmable R O M dcviccs o n t h e
XVME-100 Module.
Installing memory i n a n y o f t h e sockets i s s i m p l y a m a t t e r o f setting t h e p r o p e r
jumpers and installing the memory dcviccs.
The f o l l o w i n g i s t h e procedure f o r installing memory devices i n t h e sockets o n t h e
XVME-100 Memory Module.
1) W i t h a l l p o w e r removed f o r m t h e b o a r d , locate t h e p r o p e r socket (see
Figure 2-1 f o r location o f sockets and banks).
2) R e f e r e n c e the notched end o f the memory chips as shown i n Figure 2-7.
When i n s t a l l i n g a 2 8 p i n c h i p , t h e c h i p should b e oriented t o w a r d s t h e
bottom o f the board, leaving the bottom holes exposed as shown below.
VPP C 1
2
8
l V c c
A 12 C 2
2
7
2 P G M
A
•
3
7
2
6
2
NC
A6 C 4
2
5
2 A 8
A 5 C 5
2
4
2 A 9
23 • A 1 1
A 4 2 6
A3
7
3
7
2
2
2 0E
A 2 • 8
2
1
• A 1 0
Al r 9 2 0 2 CE.
A a C 1 0
1
9
2
0 7
0 o c 11
1
8
2 0 6
0 1 C 1 2
1
7
2 0 5
16 D 4
0 2 • 1 3
GND C 1 4
1
5
0 3 2
BOTTOM FOUR
HOLES EXPOSED
Figure 2-7. Notched End o f the Memory Cl ip
3) L i n e u p t h e p i n s on each c h i p w i t h t h e socket holes f o u n d a t t h e inside
top o f each socket location, a n d push each c h i p f i r m l y, a n d evenly i n t o
place.
NOTE
Static precautions should be exercised when
handling the memory chips, especially the
CMOS R A M chips.
2-20
Summary of Contents for XVME-100
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