Datasheet SN54F241J, SN74F241DW, SN74F241DWR, SN74F241N, SNJ54F241FK Datasheet (Texas Instruments)

SN54F241, SN74F241

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SDFS090 – MARCH 1987 – REVISED OCTOBER 1993

Copyright  1993, Texas Instruments Incorporated

2–1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

• 3-State Outputs Drive Bus Lines or Buffer

Memory Address Registers

• Package Options Include Plastic

Small-Outline Packages, Ceramic Chip
Carriers, and Plastic and Ceramic DIPs

description

These octal buffers and line drivers are designed
specifically to improve both the performance and
density of 3-state memory address drivers, clock
drivers, and bus-oriented receivers and
transmitters. Taken together with the ′F240 and
′F244, these devices provide the choice of
selected combinations of inverting and
noninverting outputs, symmetrical OE

(active-low
output-enable) inputs, and complementary OE
and OE

inputs.

The SN54F241 is characterized for operation over
the full military temperature range of –55°C to
125°C. The SN74F241 is characterized for
operation from 0°C to 70°C.

FUNCTION TABLES

INPUTS

OUTPUT

1OE 1A

1Y

H X Z
L HH
LLL

INPUTS

OUTPUT

2OE 2A

2Y

H H H
H LL
LXZ

1
2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

1OE

1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1

GND

V

CC

2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1

SN54F241 ...J PACKAGE

SN74F241 . . . DW OR N PACKAGE

(TOP VIEW)

3 2 1 20 19

910111213

4
5
6
7
8

18
17
16
15
14

1Y1
2A4
1Y2
2A3
1Y3

1A2
2Y3
1A3
2Y2
1A4

SN54F241 . . . FK PACKAGE

(TOP VIEW)

2Y4

1A1

1OE

1Y4

2A2 2OE

2Y1

GND

2A1

V

CC

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

SN54F241, SN74F241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SDFS090 – MARCH 1987 – REVISED OCTOBER 1993

2–2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic symbol

†

logic diagram (positive logic)

†

This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.

2

1A1

4

1A2

6

1A3

8

1A4

EN

1

1Y1

18

1Y2

16

1Y3

14

1Y4

12

11

2A1

13

2A2

15

2A3

17

2A4

EN

19

2OE

2Y1

9

2Y2

7

2Y3

5

2Y4

3

1OE

1

2

4

6

8

19

11

13

15

17

3

5

7

9

12

14

16

18

1A1

1A2

1A3

1A4

1Y1

2OE

2A1

2A2

2A3

2A4

2Y1

1Y2

1Y3

1Y4

2Y2

2Y3

2Y4

1OE

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

‡

Supply voltage range, V

CC

–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, V

I

(see Note 1) –1.2 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input current range –30 mA to 5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range applied to any output in the disabled or power-off state –0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .

Voltage range applied to any output in the high state –0.5 V to V

CC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Current into any output in the low state: SN54F241 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74F241 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range: SN54F241 –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74F241 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

‡

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed.

SN54F241, SN74F241

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SDFS090 – MARCH 1987 – REVISED OCTOBER 1993

2–3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

recommended operating conditions

SN54F241 SN74F241

MIN NOM MAX MIN NOM MAX

UNIT

V

CC

Supply voltage 4.5 5 5.5 4.5 5 5.5 V

V

IH

High-level input voltage 2 2 V

V

IL

Low-level input voltage 0.8 0.8 V

I

IK

Input clamp current –18 –18 mA

I

OH

High-level output current –12 –15 mA

I

OL

Low-level output current 48 64 mA

T

A

Operating free-air temperature –55 125 0 70 °C

electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)

SN54F241 SN74F241

PARAMETER

TEST CONDITIONS

MIN TYP†MAX MIN TYP†MAX

UNIT

V

IK

VCC = 4.5 V, II = –18 mA –1.2 –1.2 V

IOH = – 3 mA 2.4 3.3 2.4 3.3

VCC = 4.5 V

IOH = – 12 mA 2 3.2

V

OH

IOH = – 15 mA 2 3.1

V

VCC = 4.75 V , IOH = – 3 mA 2.7

IOL = 48 mA 0.38 0.55

VOLV

CC

= 4.5

V

IOL = 64 mA 0.42 0.55

V

I

OZH

VCC = 5.5 V, VO = 2.7 V 50 50 µA

I

OZL

VCC = 5.5 V, VO = 0.5 V –50 –50 µA

I

I

VCC = 5.5 V, VI = 7 V 0.1 0.1 mA

I

IH

VCC = 5.5 V, VI = 2.7 V 20 20 µA

OE or OE

–1 –1

I

IL

Any A

V

CC

=

5.5 V

,

V

I

=

0.5 V

– 1.6 – 1.6

mA

I

OS

‡

VCC = 5.5 V, VO = 0 –100 –225 –100 –225 mA

Outputs high 40 60 40 60

I

CC

VCC = 5.5 V

Outputs low 60 90 60 90

mA

Outputs disabled 60 90 60 90

†

All typical values are at VCC = 5 V, TA = 25°C.

‡

Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.

SN54F241, SN74F241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SDFS090 – MARCH 1987 – REVISED OCTOBER 1993

2–4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

switching characteristics (see Note 2)

PARAMETER

FROM

(

INPUT

)

TO

(

OUTPUT

)

VCC = 5 V,
CL = 50 pF,
RL = 500 Ω,
TA = 25°C

VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500Ω,
TA = MIN to MAX

†

UNIT

(INPUT)

(OUTPUT)

′F241 SN54F241 SN74F241

MIN TYP MAX MIN MAX MIN MAX

t

PLH

1.7 3.6 5.2 1.2 6.5 1.7 6.2

t

PHL

Any A

Y

1.7 3.6 5.2 1.2 7 1.7 6.5

ns

t

PZH

1.2 3.9 5.7 1.2 7 1.2 6.7

t

PZL

OE

or

OE

Y

1.2 5 7 1.2 8.5 1.2 8

ns

t

PHZ

1.2 4.1 6 1.2 7 1.2 7

t

PLZ

OE or OE

Y

1.2 4.1 6 1.2 7.5 1.2 7

ns

†

For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

NOTE 2: Load circuits and waveforms are shown in Section 1.

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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
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Copyright  1998, Texas Instruments Incorporated