MC74F85N Motorola, MC74F85N Datasheet
MC74F85N
Manufacturer Part Number
MC74F85N
Description
4-bit magnitude comparator
Manufacturer
Motorola
Datasheet
1.MC74F85N.pdf
(4 pages)
Specifications of MC74F85N
Dc
9719
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC74F85N
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
4-BIT MAGNITUDE COMPARATOR
4-Bit words (A 0 -A 3 , B 0 -B 3 ), A 3 , B 3 being the most significant inputs. Operation
is not restricted to binary codes; the device will work with any monotonic code.
Three Outputs are provided: “A greater than B” (0 A > B ), “A less than B” (0 A
< B ), “A equal to B” (0 A = B ). Three Expander Inputs, I A > B , I A < B , I A = B , allow
cascading without external gates. For proper compare operation, the Expan-
der Inputs to the least significant position must be connected as follows: I A <
B = I A > B = L, I A = B = H. For serial (ripple) expansion the 0 A > B , 0 A < B Outputs
are connected respectively to the I A > B and I A = B inputs of the next most sig-
nificant comparator, as shown in Figure 1. Refer to applications section of
data sheet for high speed method of comparing large words.
GUARANTEED OPERATING RANGES
V CC
T A
I OH
I OL
The MC54/74F85 is a 4-Bit Magnitude Comparator which compares two
High Impedance NPN Base Inputs for Reduced Loading (20 A in
Magnitude Comparison of any Binary Words
Serial or Parallel Expansion Without Extra Gating
ESD > 4000 Volts
HIGH and LOW States)
A
Symbol
V CC
16
B 3
1
Supply Voltage
Operating Ambient Temperature Range
Output Current
Output Current
I A < B I A = B I A > B
A 3
15
2
CONNECTION DIAGRAM
B 2
14
3
A 2
13
4
High
Low
Parameter
A>B
A 1
12
5
A=B
B 1
11
6
FAST AND LS TTL DATA
A<B
A 0
10
7
GND
B 0
9
8
4-36
54, 74
54, 74
54, 74
54
74
Min
–55
4-BIT MAGNITUDE COMPARATOR
4.5
0
16
16
16
ORDERING INFORMATION
1
1
MC54/74F85
MC74FXXJ
MC74FXXN
MC74FXXD
FAST
1
Typ
5.0
25
25
SCHOTTKY TTL
Ceramic
Plastic
SOIC
Max
–1.0
125
5.5
70
20
CASE 751B-03
CASE 620-09
CASE 648-08
CERAMIC
N SUFFIX
D SUFFIX
J SUFFIX
PLASTIC
SOIC
Unit
mA
mA
V
C
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MC74F85N Summary of contents
Page 1
MAGNITUDE COMPARATOR The MC54/74F85 is a 4-Bit Magnitude Comparator which compares two 4-Bit words ( being the most significant inputs. Operation is not restricted to ...
Page 2
FUNCTION TABLE Comparing Inputs > < ...
Page 3
< > ...
Page 4
AC ELECTRICAL CHARACTERISTICS Symbol Parameter t PLH Input to t PHL A < > B Output t PLH Input to t PHL Output t PLH I A<B and I ...