w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 139

• Manufacturer Part Number: w83977eg
• Description: Winbond Isa I/o W83977ef W83977eg
• Manufacturer: Winbond Electronics Corp America

15.2 Parallel Port Extension 2FDD
15.3 Four FDD Mode
M O B2#/BU SY
H EAD 2#/ER R #
STEP2#/SLIN #
TR K02#/PD 1#
R W C 2#/AFD #
M O A2#/PD 6
W E2#/SLCT
D SB2#/AC K
D SA2#/PD 7
D C H 2#/PD 4
R D D 2#/PD 3
DIR2#/IN IT#
ID X2#/PD 0
W P2#/PD 2
W D 2#/PE
PD 5
STB#
W83977EF
MOB#
MOA#
DSB#
DSA#
Parallel Port Extension 2FD D C onnection D iagram
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25
12
24
11
23
10
22
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14
9
8
7
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PR IN TER P O R T
JP13
G1
A1
B1
G2
A2
B2
W83977EF-AW/W83977EG-AW
74LS139
-137-
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
7407(2)
Publication Release Date: Apr. 2006
HE AD 2#
TR K02#
DS B2#
M O A 2#
DC H2#
RD D2#
W P 2#
W D2#
ST EP2#
DIR2 #
M O B 2#
ID X2#
RW C 2#
W E2#
DS A2#
DSA#
DSB#
DSC#
DSD#
MOA#
MOB#
MOC#
MOD#
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32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
EX T FDC
JP 13A
Revision 1.2
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