Heathkit H9 - Page 85

Page
83
Integrated
Circuits
(cont'd.)
INPUTS
INPUTS
o u
IP u T
s
/Lom-
DfiAi-[rT.
DAIA
0s
0q
COUNT
COUNI 06
09
B
*r- D0WN
UP
\----v-
INPUT INPUTS
\----.VJ
INPUTS
A
CLEAR
BORROII/ CARRY
LOAD
oB o4
DowN
uP
oc
oo
SYNCHRONOUS
UP/DOWN
DUAL
CLOCK
COUNTER
BINARY WITH CLEAR
443-81
5
vcc
48 4A 4Y
38
3A 3Y
2Y CND
QUADRUPLE
2-INPUT
POSITIVE.AND
GATE
WITH OPEN-COLLECTOR
OUTPUTS
443-816
SYNCHRONOUS
UP/DOWN
DUAL CLOCK
COUNTER
BCD WITH
CLEAR
INPUTS
INPUTS
#r;;\
oJTp.jTs
fo;D D-ftA_i;i-d,
UAIA LLLAX
vcc
r 66iF6fr dTril
c D
DAIA 0e 0a
C0UNT
COUNI
0f 06 6N0
B
*rJ 00WN
Up
s:-v-:/
INPUI INPUIS
\--'\,_J
INPUIS
OUTPUTS
coTNT
cOUNT
0A
DOWN UP
443-817