Motorola MC74HC20D Datasheet



SEMICONDUCTOR TECHNICAL DATA

1

REV 6

 Motorola, Inc. 1995

10/95

   

High–Performance Silicon–Gate CMOS

The MC74HC20 is identical in pinout to the LS20. The device inputs are
compatible with standard CMOS outputs; with pullup resistors, they are
compatible with LSTTL outputs.

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2 to 6 V

• Low Input Current: 1 µA

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the Requirements Defined by JEDEC Standard

No. 7A

• Chip Complexity: 28 FETs or 7 Equivalent Gates

LOGIC DIAGRAM

PIN 14 = V

CC

PIN 7 = GND
PINS 3, 11 = NO CONNECTION

Y = ABCD

A1

1
2
4
5

B1
C1
D1

6

Y1

A2

9
10
12
13

B2
C2
D2

6

Y1



FUNCTION TABLE

PIN ASSIGNMENT

A

L
X
X
X
H

11

12

13

14

8

9

105

4

3

2

1

7

6

B2

NC

C2

D2

V

CC

Y2

A2

C1

NC

B1

A1

GND

Y1

D1

Inputs

B

X
L
X
X
H

C

X
X
L
X
H

D

X
X
X
L
H

Output

Y

H
H
H
H
L

D SUFFIX

SOIC PACKAGE

CASE 751A–03

N SUFFIX

PLASTIC PACKAGE

CASE 646–06

1

14

1

14

ORDERING INFORMATION

MC74HCXXN
MC74HCXXD

Plastic
SOIC

MC74HC20

MOTOROLA High–Speed CMOS Logic Data

DL129 — Rev 6

2

MAXIMUM RATINGS*

Symbol

Parameter

Value

Unit

V

CC

DC Supply Voltage (Referenced to GND)

– 0.5 to + 7.0

V

V

in

DC Input Voltage (Referenced to GND)

– 1.5 to VCC + 1.5

V

V

out

DC Output Voltage (Referenced to GND)

– 0.5 to VCC + 0.5

V

I

in

DC Input Current, per Pin

± 20

mA

I

out

DC Output Current, per Pin

± 25

mA

I

CC

DC Supply Current, VCC and GND Pins

± 50

mA

P

D

Power Dissipation in Still Air Plastic DIP†

SOIC Package†

750
500

mW

T

stg

Storage Temperature

– 65 to + 150

_

C

T

L

Lead Temperature, 1 mm from Case for 10 Seconds

(Plastic DIP or SOIC Package)

260

_

C

*Maximum Ratings are those values beyond which damage to the device may occur.

Functional operation should be restricted to the Recommended Operating Conditions.

†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C

SOIC Package: – 7 mW/_C from 65_ to 125_C

For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Min

Max

Unit

V

CC

DC Supply Voltage (Referenced to GND)

2.0

6.0

V

Vin, V

out

DC Input Voltage, Output Voltage (Referenced to GND)

0

V

CC

V

T

A

Operating Temperature, All Package Types

– 55

+ 125

_

C

tr, t

f

Input Rise and Fall Time VCC = 2.0 V

(Figure 1) VCC = 4.5 V

VCC = 6.0 V

0
0
0

1000

500
400

ns

DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)

Guaranteed Limit

Symbol

Parameter

Test Conditions

V

CC
V

– 55 to

25_C

v

85_Cv 125_C

Unit

V

IH

Minimum High–Level Input
Voltage

V

out

= 0.1 V or VCC – 0.1 V

|I

out

| v 20 µA

2.0

4.5

6.0

1.5

3.15

4.2

1.5

3.15

4.2

1.5

3.15

4.2

V

V

IL

Maximum Low–Level Input
Voltage

V

out

= 0.1 V or VCC – 0.1 V

|I

out

| v 20 µA

2.0

4.5

6.0

0.3

0.9

1.2

0.3

0.9

1.2

0.3

0.9

1.2

V

V

OH

Minimum High–Level Output
Voltage

Vin = VIH or V

IL

|I

out

| v 20 µA

2.0

4.5

6.0

1.9

4.4

5.9

1.9

4.4

5.9

1.9

4.4

5.9

V

Vin = VIH or VIL|I

out

| v 4.0 mA

|I

out

| v 5.2 mA

4.5

6.0

3.98

5.48

3.84

5.34

3.70

5.20

V

OL

Maximum Low–Level Output
Voltage

Vin = VIH or V

IL

|I

out

| v 20 µA

2.0

4.5

6.0

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

V

Vin = VIH or VIL|I

out

| v 4.0 mA

|I

out

| v 5.2 mA

4.5

6.0

0.26

0.26

0.33

0.33

0.40

0.40

I

in

Maximum Input Leakage Current

Vin = VCC or GND

6.0

± 0.1

± 1.0

± 1.0

µA

I

CC

Maximum Quiescent Supply
Current (per Package)

Vin = VCC or GND
I

out

= 0 µA

6.0

2

20

40

µA

NOTE: Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).

This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high–impedance cir­cuit. For proper operation, Vin and
V

out

should be constrained to the

range GND v (Vin or V

out

) v VCC.

Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.

MC74HC20

High–Speed CMOS Logic Data
DL129 — Rev 6

3 MOTOROLA

AC ELECTRICAL CHARACTERISTICS (C

L

= 50 pF, Input tr = tf = 6.0 ns)

Guaranteed Limit

Symbol

Parameter

V

CC
V

– 55 to

25_C

v

85_Cv 125_C

Unit

t

PLH

,

t

PHL

Maximum Propagation Delay, Input A, B, C, or D to Output Y

(Figures 1 and 2)

2.0

4.5

6.0

90
18
15

115

23
20

135

27
23

ns

t

TLH

,

t

THL

Maximum Output Transition Time, Any Output

(Figures 1 and 2)

2.0

4.5

6.0

75
15
13

95
19
16

110

22
19

ns

C

in

Maximum Input Capacitance

—

10

10

10

pF

NOTES:

1. For propagation delays with loads other than 50 pF, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).

2. Information on typical parametric values can be found in Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D).

Typical @ 25°C, VCC = 5.0 V

C

PD

Power Dissipation Capacitance (Per Gate)*

26

pF

*Used to determine the no–load dynamic power consumption: PD = CPD V

CC

2

f + ICC VCC. For load considerations, see Chapter 2 of the

Motorola High–Speed CMOS Data Book (DL129/D).

*Includes all probe and jig capacitance

CL*

TEST POINT

DEVICE
UNDER

TEST

OUTPUT

Figure 1. Switching Waveforms Figure 2. Test Circuit

INPUT

A, B, C, OR D

OUTPUT Y

t

f

t

r

V

CC

GND

t

PHL

t

PLH

t

TLH

t

THL

90%

50%

10%

90%

50%

10%

A
B

C
D

Y

EXPANDED LOGIC DIAGRAM

(1/2 OF THE DEVICE)

MC74HC20

MOTOROLA High–Speed CMOS Logic Data

DL129 — Rev 6

4

OUTLINE DIMENSIONS

N SUFFIX

PLASTIC DIP PACKAGE

CASE 646–06

ISSUE L

NOTES:

1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE
POSITION AT SEATING PLANE AT MAXIMUM
MATERIAL CONDITION.

2. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.

3. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.

4. ROUNDED CORNERS OPTIONAL.

1 7

14 8

B

A

F

H G D

K

C

N

L

J

M

SEATING
PLANE

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A 0.715 0.770 18.16 19.56
B 0.240 0.260 6.10 6.60
C 0.145 0.185 3.69 4.69
D 0.015 0.021 0.38 0.53
F 0.040 0.070 1.02 1.78
G 0.100 BSC 2.54 BSC
H 0.052 0.095 1.32 2.41
J 0.008 0.015 0.20 0.38
K 0.115 0.135 2.92 3.43
L 0.300 BSC 7.62 BSC
M 0 10 0 10
N 0.015 0.039 0.39 1.01

_ _ _ _

D SUFFIX

PLASTIC SOIC PACKAGE

CASE 751A–03

ISSUE F

MIN MINMAX MAX

MILLIMETERS INCHES

DIM

A
B
C
D
F
G
J
K
M
P
R

8.55

3.80

1.35

0.35

0.40

0.19

0.10
0

°

5.80

0.25

8.75

4.00

1.75

0.49

1.25

0.25

0.25
7

°

6.20

0.50

0.337

0.150

0.054

0.014

0.016

0.008

0.004
0

°

0.228

0.010

0.344

0.157

0.068

0.019

0.049

0.009

0.009
7°

0.244

0.019

1.27 BSC 0.050 BSC

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

–A–

–B–

P 7 PL

G

C

K

SEATING
PLANE

D 14 PL

M

J

R

X 45°

1

7

814

0.25 (0.010) T B A

M

S S

B0.25 (0.010)

M M

F

MC74HC20

High–Speed CMOS Logic Data
DL129 — Rev 6

5 MOTOROLA

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MC74HC20/D

*MC74HC20/D*

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