MOTOROLA MC74AC20, MC74ACT20 Technical data

5-1

FACT DATA

   

• Outputs Source/Sink 24 mA

• ′ACT20 Has TTL Compatible Inputs

Pinout: 14-Lead Packages (Top View)

GND

1314 12 11 10 9 8

21 3 4 5 6 7

V

CCA1B1

NC C1D1O

1

A0B0NC C0D0O

0

PIN NAMES

An, Bn, Cn, D

n

Inputs

O

n

Outputs

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) –0.5 to VCC + 0.5 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 Sink/Source Current, per Pin ± 50 mA

I

CC

DC VCC or GND Current per Output Pin ± 50 mA

T

stg

Storage Temperature –65 to +150 °C

* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended

Operating Conditions.





DUAL 4-INPUT

NAND GATE

N SUFFIX

CASE 646-06

PLASTIC PACKAGE

D SUFFIX

CASE 751A-03

PLASTIC PACKAGE

1

14

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MC74AC20 MC74ACT20

5-2

FACT DATA

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Min Typ Min Unit

′AC 2.0 5.0 6.0

VCCSupply Voltage

′ACT 4.5 5.0 5.5

V

VREG DC Regulated Power Voltage (Ref. to GND) 0 V

CC

V

VCC @ 3.0 V 150

Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs

VCC @ 4.5 V 40 ns/V

r

, t

f

′AC Devices except Schmitt Inputs

VCC @ 5.5 V 25
VCC @ 4.5 V 10

tr, t

f

Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs

VCC @ 5.5 V 8.0

ns/V

T

J

Junction Temperature (PDIP) 140 °C

T

A

Operating Ambient Temperature Range –40 25 85 °C

I

OH

Output Current — HIGH –24 mA

I

OL

Output Current — LOW 24 mA

1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.

2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.

DC CHARACTERISTICS

74AC 74AC

Symbol

Parameter

V

CC

(V)

TA = +25°C

TA =

–40°C to +85°C

Unit

Conditions

Typ Guaranteed Limits

V

IH

3.0 1.5 2.1 2.1 V

OUT

= 0.1 V

4.5 2.25 3.15 3.15 V or VCC – 0.1 V

5.5 2.75 3.85 3.85

V

IL

3.0 1.5 0.9 0.9 V

OUT

= 0.1 V

4.5 2.25 1.35 1.35 V or VCC – 0.1 V

5.5 2.75 1.65 1.65

V

OH

3.0 2.99 2.9 2.9 I

OUT

= – 50 µA

4.5 4.49 4.4 4.4 V

5.5 5.49 5.4 5.4
*VIN = VIL or V

IH

3.0 2.56 2.46

– 12 mA

4.5 3.86 3.76

V

I

OH

– 24 mA

5.5 4.86 4.76 – 24 mA

V

OL

3.0 0.002 0.1 0.1 I

OUT

= 50 µA

4.5 0.001 0.1 0.1 V

5.5 0.001 0.1 0.1
*VIN = VIL or V

IH

3.0 0.36 0.44

12 mA

4.5 0.36 0.44

V

I

OL

24 mA

5.5 0.36 0.44 24 mA

I

IN

5.5

±0.1

±1.0

µA

I

= VCC, GND

I

OLD

5.5 75 mA V

OLD

= 1.65 V Max

I

OHD

Output Current

5.5 –75 mA V

OHD

= 3.85 V Min

I

CC

5.5

4.040µA

IN

= VCC or GND

* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V.

tr, t

f

Input Rise and Fall Time (Note 2)

Minimum High Level
Input Voltage

Maximum Low Level
Input Voltage

Minimum Low Level
Output Voltage

Maximum Low Level
Output Voltage

Maximum Input
Leakage Current

†Minimum Dynamic

Maximum Quiescent
Supply Current

VI = VCC, GND

VIN = VCC or GND

MC74AC20 MC74ACT20

5-3

FACT DATA

AC CHARACTERISTICS

74AC 74AC

Symbol

Parameter

VCC*

(V)

TA = +25°C
CL = 50 pF

TA = –40°C

to +85°C

CL = 50 pF

Unit

Min Typ Max Min Max

3.3 2.0 6.0 8.5 1.5 10.0

PLH

5.0 1.5 5.0 7.0 1.0 8.0

ns

3.3 1.5 5.0 7.0 1.0 9.0

PHL

5.0 1.5 4.0 6.0 1.0 7.0

ns

* Voltage Range 3.3 V is 3.3 V ±0.3 V.

Voltage Range 5.0 V is 5.0 V ±0.5 V.

DC CHARACTERISTICS

74ACT 74ACT

Symbol

Parameter

V

CC

(V)

TA = +25°C

TA =

–40°C to +85°C

Unit

Conditions

Typ Guaranteed Limits

V

IH

4.5 1.5 2.0 2.0

V

OUT

= 0.1 V

5.5 1.5 2.0 2.0

V

or VCC – 0.1 V

V

IL

4.5 1.5 0.8 0.8

V

OUT

= 0.1 V

5.5 1.5 0.8 0.8

V

or VCC – 0.1 V

V

OH

4.5 4.49 4.4 4.4

I

OUT

= – 50 µA

5.5 5.49 5.4 5.4

V

*VIN = VIL or V

IH

4.5 3.86 3.76 V

– 24 mA

5.5 4.86 4.76

I

OH

– 24 mA

V

OL

4.5 0.001 0.1 0.1

I

OUT

= 50 µA

5.5 0.001 0.1 0.1

V

*VIN = VIL or V

IH

4.5 0.36 0.44 V

24 mA

5.5 0.36 0.44

I

OH

24 mA

I

IN

5.5

±0.1

±1.0

µA

I

= VCC, GND

∆I

CCT

Additional Max. ICC/Input 5.5 0.6 1.5 mA VI = VCC – 2.1 V

I

OLD

5.5 75 mA V

OLD

= 1.65 V Max

I

OHD

Output Current

5.5 –75 mA V

OHD

= 3.85 V Min

I

CC

5.5

4.040µA

IN

= VCC or GND

* All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.

t

PLH

t

PHL

Propagation Delay

Propagation Delay

Minimum High Level
Input Voltage

Maximum Low Level
Input Voltage

Minimum High Level
Output Voltage

Maximum Low Level
Output Voltage

Maximum Input
Leakage Current

†Minimum Dynamic

Maximum Quiescent
Supply Current

VI = VCC, GND

VIN = VCC or GND

MC74AC20 MC74ACT20

5-4

FACT DATA

AC CHARACTERISTICS

74ACT 74ACT

Symbol

Parameter

VCC*

(V)

TA = +25°C
CL = 50 pF

TA = –40°C

to +85°C

CL = 50 pF

Unit

Min Typ Max Min Max

PLH

5.0

2.0

6.5

9.0

1.5

10.5

ns

PHL

5.0

2.0

5.5

9.0

1.5

10.5

ns

* Voltage Range 5.0 V is 5.0 V ±0.5 V.

CAPACITANCE

Symbol Parameter

Value

Typ

Unit Test Conditions

C

IN

Input Capacitance 4.5 pF VCC = 5.0 V

C

PD

Power Dissipation Capacitance 40 pF VCC = 5.0 V

t

PLH

Propagation Delay

t

PHL

Propagation Delay

MC74AC20 MC74ACT20

5-5

FACT DATA

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

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–

G

P

7 PL

14 8

71

M

0.25 (0.010) B

M

S

B

M

0.25 (0.010) A

S

T

–T–

F

R

X 45

SEATING
PLANE

D 14 PL

K

C

J

M

_

DIM MIN MAX MIN MAX

INCHESMILLIMETERS

A 8.55 8.75 0.337 0.344
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
M 0 7 0 7
P 5.80 6.20 0.228 0.244
R 0.25 0.50 0.010 0.019

_ _ _ _

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MC74AC20/D

*MC74AC20/D*

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