MC14489B 데이터 시트보기 (PDF) - Motorola => Freescale
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MC14489B Datasheet PDF : 22 Pages
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Table 1. Triple-Mode Segment Decoder Function Table
Lamp Conditions
Bank Nibble Value
7-Segment Display
Characters
No DecodeG)
(Invoked via
Bits C1 to C7)
Hex Decode
Special
Decode
Binary
(Invoked via
(Invoked via
Hexadecimal MSB
LSB
Bits C1 to C5) Bits C1 to C7)
d
$0
LL L
"
u
I
$1
LL H
I
c
$2
LH L
2
,','
$3
LH H
3
,'I
c
b
a
on
on
on
on
$4
HL L
l./
,
u
on
$5
HL H
s@
I
L
on
on
$6
HH L
$7
HH H
$8
IH L L L
G
,,
8~
"
on
on
O
on
on
on
,O
on
$9
H LL H
9@
,-
on
$A
H LH L
'-I
,-,
u
on
on
on
$B
H LH H
'c,
$C
HH
L
,-
L
$0
HH
H
,
c'
$E
HH
L
E
$F
H Hr H
F
LI
on
on
on
~
on
on
on
on
on
on
on
on
0
on
on
on
on
NOTES:
1. In the No Decode mode, outputs e, f, and g are unused and are all forced inactive (low). Output
h decoding is unaffected, i.e., unchanged from the other modes. The No Decode mode is used
for three purposes:
a. Individually controlling lamps.
b. Controlling a half digit with sign.
c. Controlling annunciators. examples: AM, PM, UHF, kV, mm Hg.
2. Can be used as capital S.
3. Can be used as capital B.
4. Can be used as small g.
MC14489B
8
~
MOTOROLA
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