MC14585B Motorola, MC14585B Datasheet

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MC14585B

Manufacturer Part Number
MC14585B
Description
4-Bit Magnitude Comparator
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
4-Bit Magnitude Comparator
mentary MOS (CMOS) enhancement mode devices. The circuit has eight
comparing inputs (A3, B3, A2, B2, A1, B1, A0, B0), three cascading inputs
(A < B, A = B, and A > B), and three outputs (A < B, A = B, and A > B). This
device compares two 4–bit words (A and B) and determines whether they
are “less than”, “equal to”, or “greater than” by a high level on the appropriate
output. For words greater than 4–bits, units can be cascaded by connecting
outputs (A > B), (A < B), and (A = B) to the corresponding inputs of the next
significant comparator. Inputs (A < B), (A = B), and (A > B) on the least
significant (first) comparator are connected to a low, a high, and a low,
respectively.
instrumentation conditions, comparator in testers, converters, and controls.
* Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
REV 3
1/94
MAXIMUM RATINGS*
V in , V out
Symbol
A3 > B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 < B3
MOTOROLA CMOS LOGIC DATA
I in , I out
A3, B3
The MC14585B 4–Bit Magnitude Comparator is constructed with comple-
Applications include logic in CPU’s, correction and/or detection of
Motorola, Inc. 1995
V DD
Diode Protection on All Inputs
Expandable
Applicable to Binary or 8421–BCD Code
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load over the Rated Temperature Range
Can be Cascaded – See Fig. 3
T stg
P D
T L
Plastic “P and D/DW” Packages: – 7.0 mW/ _ C From 65 _ C To 125 _ C
Ceramic “L” Packages: – 12 mW/ _ C From 100 _ C To 125 _ C
DC Supply Voltage
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
Power Dissipation, per Package†
Storage Temperature
Lead Temperature (8–Second Soldering)
A2 > B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 < B2
A2, B2
x
x
Comparing
A1 > B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 < B1
A1, B1
(Voltages Referenced to V SS )
x
x
x
x
Parameter
TRUTH TABLE
Inputs
A0 > B0
A0 = B0
A0 = B0
A0 = B0
A0 = B0
A0 < B0
A0, B0
x
x
x
x
x
x
A < B
0
0
1
1
(x = Don’t Care)
x
x
x
x
x
x
x
x
Cascading
A = B
x
x
x
x
0
1
0
1
x
x
x
x
– 0.5 to V DD + 0.5
– 0.5 to + 18.0
– 65 to + 150
A > B
Value
x
x
x
x
x
x
x
x
x
x
x
x
500
260
10
A < B
0
0
0
0
0
0
1
1
1
1
1
1
Outputs
Outputs
Unit
mW
A = B
mA
_ C
_ C
V
V
0
0
0
0
0
1
0
1
0
0
0
0
A > B
1
1
1
1
1
0
0
0
0
0
0
0
10
15
14
T A = – 55 to 125 C for all packages.
11
4
6
5
7
9
2
1
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBD
MC14585B
BLOCK DIAGRAM
(A > B) in
(A = B) in
(A < B) in
A0
B0
A1
B1
A2
B2
A3
B3
V DD = PIN 16
V SS = PIN 8
(A > B) out
(A = B) out
(A < B) out
CASE 751B
CERAMIC
CASE 620
CASE 648
D SUFFIX
L SUFFIX
P SUFFIX
PLASTIC
Plastic
Ceramic
SOIC
SOIC
MC14585B
13
3
12
1

Related parts for MC14585B

MC14585B Summary of contents

Page 1

... MOTOROLA SEMICONDUCTOR TECHNICAL DATA 4-Bit Magnitude Comparator The MC14585B 4–Bit Magnitude Comparator is constructed with comple- mentary MOS (CMOS) enhancement mode devices. The circuit has eight comparing inputs (A3, B3, A2, B2, A1, B1, A0, B0), three cascading inputs (A < and A > B), and three outputs (A < and A > B). This device compares two 4– ...

Page 2

... The formulas given are for the typical characteristics only †To calculate total supply current at loads other than 50 pF (50 pF – 50) Vfk where (per package pF – volts kHz is input frequency, and k = 0.001. MC14585B 2 (Voltages Referenced – ...

Page 3

... B0 10% t PLH t PHL 90% 50% 10% t TLH t THL Figure 2. Dynamic Signal Waveforms ( out ) MC14585B Unit ...

Page 4

... OUTPUT MC14585B WORD B = B11, B10, ... , B0. WORD A = A11, A10, ... , A0. Figure 3. Cascading Comparators LOGIC DIAGRAM MC14585B INPUTS 12 (A < B) out out 13 (A > B) out MOTOROLA CMOS LOGIC DATA ...

Page 5

... DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. INCHES MILLIMETERS DIM MIN MAX MIN MAX A 0.740 0.770 18.80 19.55 B 0.250 0.270 6.35 6.85 C 0.145 0.175 3.69 4.44 D 0.015 0.021 0.39 0.53 F 0.040 0.70 1.02 1.77 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.008 0.015 0.21 0.38 K 0.110 0.130 2.80 3.30 L 0.295 0.305 7.50 7. 0.020 0.040 0.51 1.01 MC14585B 5 ...

Page 6

... MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 9.80 10.00 0.386 0.393 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019 are registered MOTOROLA CMOS LOGIC DATA MC14585B/D ...

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