Tandy 1000 SL Technical Reference Manual page 141

6 1
VCC
62
VCC
6 3
GND
64
G N D
6 5 n o t u s e d
66 n o t u s e d
6 7 n o t u s e d
68 n o t u s e d
1
3 5
52
1 8
6 2
6 3
64
6 5
Power s u p p l y +5V
Power s u p p l y +5V
Ground
Ground
N o t e s : -
O.C.
= O p e n - C o l l e c t o r
-
3 - S t a t e = T r i - S t a t e
-
S.T.
=
S c h m i t t T r i g g e r
-
*
= Max.=1.6mal Min.=O.4ma s i n k i n g c u r r e n t .
T h e s e s i g n a l s m u s t h a v e e x t e r n a l t e r m i n a t i o n .
9