MC14560BD データシートの表示（PDF） - Motorola => Freescale
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MC14560BD Datasheet PDF : 13 Pages
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7
Cin
15
A1
14
B1
1
A2
2
B2
3
A3
4
B3
5
A4
6
B4
VDD = PIN 16
VSS = PIN 8
FUNCTIONAL EQUIVALENT LOGIC DIAGRAM
ADD/SUBTRACT
A1
ZERO
One MC14560B and MC14561B permit a
BCD digit to be added to or subtracted from
B1
a second digit, such as in this typical config-
uration. A second MC14561B permits either
digit to be added to or subtracted from the
other, or either word to appear unmodified at
the output.
A10
TRUTH TABLE
Zero Add/Subtract Result
0
0
B plus A
0
1
B minus A
1
X
B
X = Don’t Care
B10
MC14561B
A1 F1
A2
A3 F2
A4
COMP F3
COMP
Z
F4
MC14561B
A1 F1
A2
A3 F2
A4
COMP F3
COMP
Z
F4
Figure 3. Parallel Add/Subtract Circuit
13
S1
12
S2
11
S3
10
S4
9 Cout
MC14560B
Cin S1
A1
A2 S2
A3
A4 S3
B1
B2 S4
B3
B4 Cout
MC14560B
Cin S1
A1
A2 S2
A3
A4 S3
B1
B2 S4
B3
B4 Cout
UNITS
TENS
MC14560B
4
MOTOROLA CMOS LOGIC DATA
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