4585.PDF

HCC/HCF4585B

4-BIT MAGNITUDE COMPARATOR

. EXPANSION TO 8, 12, 16 ... 4 N BITS BY CAS-

CADING UNITS

TWO 4-BIT WORDS IN 180ns (typ.) AT 10V

. 5V, 10V, AND 15V PARAMETRIC RATINGS

. INPUT CURRENT OF 100nA AT 18V AND 25 ° C

FOR HCC DEVICE

. 100% TESTED FOR QUIESCENT CURRENT

(Plastic Package)

(Ceramic Frit Seal Package)

. MEETS ALL REQUIREMENTS OF JEDEC TEN-

13A, ”STANDARD SPE-

CIFICATIONS FOR DESCRIPTION OF ”B”

SERIES CMOS DEVICES”

(Micro Package)

(Plastic Chip Carrier)

ORDER CODES :

HCC4585BF

HCF4585BM1

HCF4585BEY

HCF4585BC1

PIN CONNECTIONS

DESCRIPTION

The HCC4585B (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

micro package. The HCC/HCF4585B is a 4-bit mag-

nitude comparator designed for use in computer and

logic applications that require the comparison of two

4-bit words. This logic circuit determines whether

one 4-bit word (Binary or BCD) is ”less than”, ”equal

to”, or ”greater than” a second 4-bit word. The

HCC/HCF4585B has eight comparing inputs (A3,

B3, through A0, B0), three outputs (A < B, A = B, A >

B) and three cascading inputs (A < B, A = B, A > B)

that permit systems designers to expand the com-

parator function to 8, 12, 16 ... 4 N bits. When a

single HCC/HCF4585B is used, the cascading in-

puts are connected as follows : (A < B) = low,

(A = B) = high, (A > B) = high. Cascading these units

for comparison of more than 4 bits is accomplished

as shown in typical application.

June 1989

1/12

. MEDIUM-SPEED OPERATION : COMPARES

. STANDARDIZED SYMMETRICAL OUTPUT

CHARACTERISTICS

TATIVE STANDARD N

HCC/HCF4585B

FUNCTIONAL DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

V DD *

Supply Voltage : HCC Types

HCF Types

– 0.5 to + 20

– 0.5 to + 18

V i

Input Voltage

– 0.5 to V DD + 0.5

I I

DC Input Current (any one input)

P tot

Total Power Dissipation (per package)

Dissipation per Output Transistor

for T op = Full Package-temperature Range

200

100

T op

Operating Temperature : HCC Types

HCF Types

– 55 to + 125

–40to+85

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 V SS (GND).

Storage Temperature

– 65 to + 150

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Value

Unit

V DD

Supply Voltage : HCC Types

HCF Types

3to18

3to15

V I

Input Voltage

0 to V DD

T op

Operating Temperature : HCC Types

HCF Types

– 55 to + 125

–40to+85

2/12

T stg

HCC/HCF4585B

LOGIC DIAGRAM

TRUTH TABLE

Inputs

Outputs

Comparing

Cascading

A3, B3 A2, B2 A1, B1 A0, B0 A < B

A = B

A > B

A < B

A = B

A > B

A3 > B3

A3 = B3

A2 > B2

A2 = B2

A1 > B1

A1 = B1

A0 > B0

A3 = B3

A2 = B2

A1 = B1

A0 = B0

A3 = B3

A3 < B3

A2 = B2

A2 < B2

A1 = B1

A1 < B1

A0 < B0

X = Don’t Care

Logic 1 = High Level

3/12

HCC/HCF4585B

STATIC ELECTRICAL CHARACTERISTICS (over recommended operating conditions)

Test Conditions

Value

Symbol

Parameter

V I

V O

|I O |V DD

T Low *

T Hi g h *

Unit

(V)

(

A) (V)

Min. Max. Min. Typ. Max. Min. Max.

I L

Quiescent

Current

0/ 5

0.04

150

HCC

Types

0/10

0.04 10

300

0/15

0.04 20

600

0/20

100

0.08 100

3000

0/ 5

0.04 20

150

HCF

Types

0/10

0.04 40

300

0/15

0.04 80

600

V OH

Output High

Voltage

0/ 5

< 1

4.95

0/10

< 1 10 9.95

9.95

0/15

< 1 15 14.95

14.95

V OL

Output Low

Voltage

5/0

< 1

0.05

10/0

< 1 10

0.05

15/0

< 1 15

0.05

V IH

Input High

Voltage

0.5/4.5 < 1

3.5

1/9

< 1 10

1.5/13.5 < 1 15

V IL

Input Low

Voltage

4.5/0.5 < 1

1.5

9/1

< 1 10

13.5/1.5 < 1 15

I OH

Output

Drive

Current

0/ 5

2.5

– 2

– 1.6 – 3.2

– 1.15

HCC

Types

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

HCF

Types

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

I OL

Output

Sink

Current

0/ 5

0.4

0.64

0.51

0.36

HCC

Types

0/10

0.5

1.6

1.3

2.6

0.9

0/15

1.5

4.2

3.4

6.8

2.4

0/ 5

0.4

0.52

0.44

0.36

HCF

Types

0/10

0.5

1.3

1.1

2.6

0.9

0/15

1.5

3.6

3.0

6.8

2.4

I IH ,I IL Input

Leakage

Current

HCC

Types

0/18

0.1

10 –5

0.1

Any Input

HCF

Types

0/15

0.3

10 –5

0.3

C I

Input Capacitance

Any Input

7.5

*T Lo w =–55

Cfor HCC device : – 40

Cfor HCF device.

The Noise Margin for both ”1” and ” 0” level is : 1V min. with V DD = 5V, 2V min. with V DD = 10V, 2.5V min. with V DD = 15V.

Cfor HCC device : + 85

4/12

*T High = + 125

HCC/HCF4585B

DYNAMIC ELECTRICAL CHARACTERISTICS (T amb =25

C, C L = 50pF, R L = 200k

typical temperature coefficient for all V DD values is 0.3%/

C, all input rise and fall time = 20ns)

Symbol

Parameter

Test Conditions

Val ue

Unit

V DD (V) Min. Typ. Max.

t PHL ,

t PLH

Propagation Delay Time

Comparing Inputs to Outputs

300

600

125

250

160

Cascading Input to Outputs

200

400

160

120

t THL ,

t TLH

Transition Time

100

200

100

Output Low (sink) Current Characteristics.

Output High (source) Current Characteristics.

Typical Transition Time vs. Load Capacitance.

Typical Propagation Delay Time (comparing in-

puts to outputs) vs. Load Capacitance.

5/12

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