SGS Thomson Microelectronics HCF4585B Datasheet
4-BIT MAGNITUDE COMPARATOR
.EXPANSION TO 8, 12, 16 ... 4 N BITSBY CAS-
CADING UNITS
.MEDIUM-SPEED OPERATION : COMPARES
TWO 4-BIT WORDS IN 180ns (typ.) AT 10V
.STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
.5V, 10V, AND 15VPARAMETRIC RATINGS
.INPUT CURRENTOF100nA AT18VAND25°C
FOR HCC DEVICE
.100% TESTEDFOR QUIESCENTCURRENT
.MEETSALLREQUIREMENTSOFJEDECTEN-
TATIVESTANDARDN°13A,”STANDARD SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIESCMOS DEVICES”
HCC/HCF4585B
EY
(Plastic Package)F(Ceramic FritSealPackage)
M1
(MicroPackage)
ORDER CODES :
HCC4585BF HCF4585BM1
HCF4585BEY HCF4585BC1
(PlasticChip Carrier)
C1
DESCRIPTI ON
TheHCC4585B (extended temperature range) and
HCF4585B (intermediate temperature range) are
monolithic integrated circuits, available in 16-lead
dual in-line plastic or ceramic package, and plastic
micropackage.TheHCC/HCF4585B isa4-bitmag-
nitudecomparator designed foruseincomputer and
logicapplications that require thecomparison of two
4-bit words. This logic circuit determines whether
one 4-bit word(BinaryorBCD)is”less than”, ”equal
to”, or ”greater than” a second 4-bit word. The
HCC/HCF4585B has eight comparing inputs (A3,
B3,throughA0, B0),threeoutputs(A<B, A= B, A>
B) and three cascadinginputs (A < B, A = B, A > B)
that permit systems designers to expand the comparator function to 8, 12, 16 ... 4 N bits. When a
single HCC/HCF4585B is used, the cascading inputs are connected as follows : (A < B) = low,
(A =B) =high, (A> B)= high.Cascadingthese units
for comparison of more than 4 bits is accomplished
as shownin typicalapplication.
PIN CONNECTIONS
June1989
1/12
HCC/HCF4585B
FUN CTIONAL DIAG R A M
ABSOLUTE MAXIMUM RATIN G S
Symbol Parameter Value Unit
V
* Supply Voltage :HC C Types
DD
HCF Types
V
Input Voltage – 0.5 to VDD+ 0.5 V
i
I
DC Input Current (any one input) ± 10 mA
I
P
Total Power Dissipation (per package)
tot
– 0.5 to + 20
– 0.5 to + 18
200
V
V
mW
Dissipation per Output Transistor
for T
T
T
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum rating conditions for external periods may affect device reliability.
* All voltages are with respect to VSS(GND).
Operating Temperature : HCC Types
op
Storage Temperature – 65 to + 150 °C
stg
= Full Package-temperature Range
op
HCF Types
100
– 55 to + 125
–40to+85
mW
°C
°C
RECOMMENDED OPERATING C ONDITIONS
Symbol Parameter Value Unit
V
T
Supply Voltage : HCC Types
DD
HCF Types
V
Input Voltage 0 to V
I
Operating Temperature : HCC Types
op
HCF Types
3to18
3to15
DD
– 55 to + 125
–40to+85
V
V
V
°C
°C
2/12
LOGI C DI AGRAM
HCC/HCF4585B
TRUTH TABLE
Inputs
Comparing Cascadi ng
A3, B3 A2, B2 A1, B1 A0, B0 A < B A = B A > B A < B A = B A > B
A3 > B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 < B3
X = Don’t C ar e Logic 1 = Hi gh Level
X
A2 > B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 < B2
X
X
X
A1 > B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 < B1
X
X
X
X
X
A0 > B0
A0 = B0
A0 = B0
A0 = B0
A0 < B0
X
X
X
X
X
X
X
0
0
1
X
X
X
X
X
X
X
X
0
1
0
X
X
X
X
1
1
1
1
1
X
X
X
X
X
X
0
0
0
0
0
0
1
1
1
1
1
Outputs
0
0
0
0
0
1
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
3/12
HCC/HCF4585B
STATIC ELECTRICAL CHARACTERISTICS (over recommended operatingconditions)
Test Conditions Valu e
Symbol Parameter
I
Quiescent
L
Current
HCC
Types
HCF
Types
V
OH
Output High
Voltage
V
OL
Output Low
Voltage
V
IH
Input High
Voltage
IL
Input Low
V
Voltage
I
OH
Output
Drive
Current
HCC
Types
HCF
Types
I
OL
Output
Sink
Current
HCC
Types
HCF
Types
I
IH,IIL
Input
Leakage
Current
HCC
Types
HCF
Types
C
Input Capacitance Any Input 5 7.5 pF
I
*T
=–55°CforHCC device : – 40°CforHCF device.
Low
*T
= + 125°CforHCC device : + 85°CforHCF device.
High
The Noise Margin for both ”1” and ”0” level is : 1V min. with VDD= 5V, 2V min. with VDD= 10V, 2.5V min. with VDD= 15V.
V
V
O
|IO|V
I
(V) (V) (µA) (V)
T
DD
* 25°CT
Low
Min. Max. Min. Ty p. Max. Min. Max .
High
*
0/ 5 5 5 0.04 5 150
0/10 10 10 0.04 10 300
0/15 15 20 0.04 20 600
0/20 20 100 0.08 100 3000
0/ 5 5 20 0.04 20 150
0/10 10 40 0.04 40 300
0/15 15 80 0.04 80 600
0/ 5 < 1 5 4.95 4.95 4.95
0/10 < 1 10 9.95 9.95 9.95
0/15 < 1 15 14.95 14.95 14.95
5/0 < 1 5 0.05 0.05 0.05
10/0 < 1 10 0.05 0.05 0.05
15/0 < 1 15 0.05 0.05 0.05
0.5/4.5 < 1 5 3.5 3.5 3.5
1/9 < 1 10 7 7 7
1.5/13.5 < 1 15 11 11 11
4.5/0.5 < 1 5 1.5 1.5 1.5
9/1 < 1 10 3 3 3
13.5/1.5 < 1 15 4 4 4
0/ 5 2.5 5 – 2 – 1.6 – 3.2 – 1.15
0/ 5 4.6 5 – 0.64 – 0.51 – 1 – 0.36
0/10 9.5 10 – 1.6 – 1.3 – 2.6 – 0.9
0/15 13.5 15 – 4.2 – 3.4 – 6.8 – 2.4
0/ 5 2.5 5 – 1.53 – 1.36 – 3.2 – 1.1
0/ 5 4.6 5 – 0.52 – 0.44 – 1 – 0.36
0/10 9.5 10 – 1.3 – 1.1 – 2.6 – 0.9
0/15 13.5 15 – 3.6 – 3.0 – 6.8 – 2.4
0/ 5 0.4 5 0.64 0.51 1 0.36
0/10 0.5 10 1.6 1.3 2.6 0.9
0/15 1.5 15 4.2 3.4 6.8 2.4
0/ 5 0.4 5 0.52 0.44 1 0.36
0/10 0.5 10 1.3 1.1 2.6 0.9
0/15 1.5 15 3.6 3.0 6.8 2.4
0/18
18
± 0.1 ±10
–5
± 0.1 ± 1
Any Input
0/15
15 ± 0.3 ±10
–5
± 0.3 ± 1
Unit
µA
V
V
V
V
mA
mA
µA
4/12
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