MC14560BCP Freescale Semiconductor, Inc, MC14560BCP Datasheet - Page 4

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MC14560BCP

Manufacturer Part Number
MC14560BCP
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet
FUNCTIONAL EQUIVALENT LOGIC DIAGRAM
7
C in
15
A1
14
B1
1
A2
2
B2
3
A3
4
B3
5
A4
6
B4
V DD = PIN 16
V SS = PIN 8
One MC14560B and MC14561B permit a
BCD digit to be added to or subtracted from
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.
TRUTH TABLE
Zero
Add/Subtract
Result
0
0
B plus A
0
1
B minus A
1
X
B
X = Don’t Care
MC14560B
4
ADD/SUBTRACT
MC14561B
A1
A2
A1
A3
A4
COMP
COMP
ZERO
Z
B1
MC14561B
A1
A2
A10
A3
A4
COMP
COMP
Z
B10
Figure 3. Parallel Add/Subtract Circuit
13
S1
12
S2
11
S3
10
S4
9
C out
F1
MC14560B
F2
C in
S1
A1
F3
A2
S2
A3
UNITS
F4
A4
S3
B1
B2
S4
B3
B4
C out
F1
MC14560B
C in
S1
F2
A1
A2
S2
F3
A3
TENS
A4
S3
F4
B1
B2
S4
B3
B4
C out
MOTOROLA CMOS LOGIC DATA

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