Data I/O 298 Manual page 173

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NOTES:
UNLESS OTHERWISE SPECIFIED:
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ALL RESISTORS ARE 114W AND IN OHMS,5%.
2. ALL
CAPACITORS ARE IN MICROFARADS.
5. LAST REFERENCE DESllNATOR USED:
Cll , JI, R5, U21.
4. POWER AND GROUND;
REF. DES.
+5
GND
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U18-U20,U25 14
7
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U23, U26-U28 16 8,15
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1 ON ALL MCM 4164'8 NOT CONNECTED.
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APPROVALS:
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UNLESS OTHERWISE
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DATAl/O
~SN. E~G~T ~·~7~
TITLE
SCHEMATIC DIAGRAM.
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MFG. ENGR. DATE
.xx
128K EXPANSION RAM BOARD
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128K VERSION SHOWN
QUAL ASSUR.
19 ~
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ENGR. MGR.
.___
DATE DRAWN BY
·' S. HUMBLE
DATE SIZE CODE INDENT.
11182
D
NO.
DATE CHEC-K-ED_B_Y_: __,_D-AT.....iE 54193
• J ' .
~ ~A
i•W-3
SCALE
'FroNE
DRAWING NO.
30-701- 1636
SHEET
1 OF 1