Heathkit H9 Manual page 81

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Pa oe79
lr=Er:IIririilrer
Integrated Circuits (cont'd.)
4
9b
2
I
B7
B6
B5
XI
Y8
Y7
Y6
Y5
Y4
Y3
\2
YI
Yl 0
SH IFT
DATA SIROEE OUTPUT
DATA STROBE CONTROL
O UT PU T
EM BTE
REPTAT
KIY BOUNCE i\lASK
v c c
CON TROL
SH IFT L O CK I /O
I
2
3
4
5
6
7
8
9
IO
II
T2
QUADRUPLE 2-INPUT
POSITIVE-NOR
GATE
4/.3-780
QUADRUPLE 2-INPUT
POSITIVE.AND
GATE
vcc
48
4.BIT BISTABLE LATCH
EM BLT