MOTOROLA MC74AC241, MC74ACT241 Technical data

5-1

FACT DATA

  
   

The MC74AC241/74ACT241 is an octal buffer and line driver designed to be
employed as a memory address driver, clock driver and bus oriented transmitter
or receiver which provides improved PC board density.

• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers

• Outputs Source/Sink 24 mA

• ′ACT241 Has TTL Compatible Inputs

1920 18 17 16 15 14

21 3 4 5 6 7

V

CC

13

8

12

9

11

10

OE

2

OE

1

GND

TRUTH TABLE

Inputs Outputs

OE1D (Pins 12, 14, 16, 18)

L L L
L H H

H X Z

H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance

TRUTH TABLE

Inputs Outputs

OE2D (Pins 3, 5, 7, 9)

H L L
H H H

L X Z

H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance





OCTAL BUFFER/LINE

DRIVER WITH

3-STATE OUTPUTS

N SUFFIX

CASE 738-03

PLASTIC

DW SUFFIX

CASE 751D-04

PLASTIC

查询MC74AC241供应商

MC74AC241 MC74ACT241

5-2

FACT DATA

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.

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Min Typ Max Unit

′AC 2.0 5.0 6.0

VCCSupply Voltage

′ACT 4.5 5.0 5.5

V

Vin, V

out

DC Input Voltage, Output 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.

tr, t

f

Input Rise and Fall Time (Note 2)

MC74AC241 MC74ACT241

5-3

FACT DATA

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

VI = VCC, GND

I

OZ

VI (OE) = VIL, V

IH

5.5 ±0.5 ±5.0 µA VI = VCC, GND
VO = 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

8.080µA

VIN = 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 VCC.

Minimum High Level
Input Voltage

Maximum Low Level
Input Voltage

Minimum High Level
Output Voltage

Maximum Low Level
Output Voltage

Maximum Input
Leakage Current

Maximum
3-State
Current

†Minimum Dynamic

Maximum Quiescent
Supply Current

MC74AC241 MC74ACT241

5-4

FACT DATA

AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)

74AC 74AC

Symbol

Parameter

VCC*

(V)

TA = +25°C
CL = 50 pF

TA = –40°C

to +85°C

CL = 50 pF

Unit

Fig.

No.

Min Typ Max Min Max

Propagation Delay

3.3 1.5 6.0 9.0 1.5 10.0

t

PLH

Data to Output 5.0 1.5 5.0 7.0 1.0 7.5

ns

3-5

Propagation Delay

3.3 1.5 6.0 9.0 1.0 10.5

t

PHL

Data to Output 5.0 1.5 4.5 7.0 1.0 7.5

ns

3-5

3.3 1.5 6.5 12.5 1.0 13.0

t

PZH

Output Enable Time

5.0 1.5 5.5 9.0 1.0 9.5

ns

3-7

3.3 1.5 7.0 12.0 1.5 13.0

t

PZL

Output Enable Time

5.0 1.5 5.5 9.0 1.0 9.5

ns

3-8

3.3 2.0 8.0 12.0 2.0 12.5

t

PHZ

Output Disable Time

5.0 1.5 6.5 10.0 1.0 10.5

ns

3-7

3.3 1.5 7.0 12.5 1.0 13.5

t

PLZ

Output Disable Time

5.0 1.5 6.0 10.0 1.0 10.5

ns

3-8

* 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

OL

24 mA

I

IN

5.5

±0.1

±1.0

µA

VI = VCC, GND

∆I

CCT

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

I

OZ

VI (OE) = VIL, V

IH

5.5 ±0.5 ±5.0 µA VI = VCC, GND
VO = 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

CC

ICCMaximum Quiescent
Supply Current

5.5

8.080µA

VIN = 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.

Minimum High Level
Input Voltage

Maximum Low Level
Input Voltage

Minimum High Level
Output Voltage

Maximum Low Level
Output Voltage

Maximum Input
Leakage Current

I

Maximum
3-State
Current

†Minimum Dynamic

Maximum Quiescent

MC74AC241 MC74ACT241

5-5

FACT DATA

AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)

74ACT 74ACT

Symbol

Parameter

VCC*

(V)

TA = +25°C
CL = 50 pF

TA = –40°C

to +85°C

CL = 50 pF

Unit

Fig.

No.

Min Typ Max Min Max

t

PLH

5.0

1.5

6.5

9.0

1.5

10.0ns3-5

t

PHL

5.0

1.5

7.0

9.0

1.5

10.0ns3-5

t

PZH

Output Enable Time 5.0 1.5 6.0 9.0 1.0 10.0 ns 3-7

t

PZL

Output Enable Time 5.0 1.5 7.0 10.0 1.5 11.0 ns 3-8

t

PHZ

Output Disable Time 5.0 1.5 8.0 10.5 1.5 11.5 ns 3-7

t

PLZ

Output Disable Time 5.0 2.0 7.0 10.5 1.5 11.5 ns 3-8

* 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 45 pF VCC = 5.0 V

Propagation Delay
Data to Output

Propagation Delay
Data to Output

MC74AC241 MC74ACT241

5-6

FACT DATA

OUTLINE DIMENSIONS

N SUFFIX

PLASTIC DIP PACKAGE

CASE 738–03

ISSUE E

DW SUFFIX

PLASTIC SOIC PACKAGE

CASE 751D–04

ISSUE E

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 0.150
(0.006) PER SIDE.

5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.13
(0.005) TOTAL IN EXCESS OF D
DIMENSION AT MAXIMUM MATERIAL
CONDITION.

–A–

–B–

20

1

11

10

S

A

M

0.010 (0.25) B

S

T

D20X

M

B

M

0.010 (0.25)

P10X

J

F

G

18X

K

C

–T–

SEATING
PLANE

M

R

X 45

_

DIM MIN MAX MIN MAX

INCHESMILLIMETERS

A 12.65 12.95 0.499 0.510
B 7.40 7.60 0.292 0.299
C 2.35 2.65 0.093 0.104
D 0.35 0.49 0.014 0.019

F 0.50 0.90 0.020 0.035

G 1.27 BSC 0.050 BSC

J 0.25 0.32 0.010 0.012
K 0.10 0.25 0.004 0.009
M 0 7 0 7

P 10.05 10.55 0.395 0.415
R 0.25 0.75 0.010 0.029

_ _

_ _

NOTES:

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

2. CONTROLLING DIMENSION: INCH.

3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.

4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.

M

L

J

20 PL

M

B

M

0.25 (0.010) T

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A 25.66 27.171.010 1.070
B 6.10 6.600.240 0.260
C 3.81 4.570.150 0.180
D 0.39 0.550.015 0.022

G 2.54 BSC0.100 BSC
J 0.21 0.380.008 0.015
K 2.80 3.550.110 0.140
L 7.62 BSC0.300 BSC
M 0 15 0 15
N 0.51 1.010.020 0.040

_ __ _

E

1.27 1.770.050 0.070

1

11

10

20

–A–

SEATING
PLANE

K

N

FG

D

20 PL

–T–

M

A

M

0.25 (0.010) T

E

B

C

F

1.27 BSC0.050 BSC

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MC74AC241/D

*MC74AC241/D*

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