Datasheet 5962-9175301MRA Datasheet (Texas Instruments)

SN54F541, SN74F541

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SDFS021A – D3126, JANUAR Y 1989 – REVISED OCT OBER 1993

• 3-State Outputs Drive Bus Lines or Buffer

Memory Address Registers

• Data Flow-Through Pinout (All Inputs on

Opposite Side From Outputs)

• Package Options Include Plastic

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

description

The ′F541 octal buffer/line driver is ideal for driving
bus lines or buffering memory address registers.
The device features inputs and outputs on
opposite sides of the package to facilitate
printed-circuit-board layout.

The 3-state control gate is a 2-input AND gate with
active-low inputs so that if either output enable

or OE2) input is high, all eight outputs are in

(OE1
the high-impedance state.

The SN54F541 is characterized for operation over
the full military temperature range of –55°C to
125°C. The SN74F251 is characterized for
operation from 0°C to 70°C.

SN54F541 ...J PACKAGE

SN74F541 ... DW OR N PACKAGE

SN54F541 . . . FK PACKAGE

A3
A4
A5
A6
A7

(TOP VIEW)

OE1

1

A1

2

A2

3

A3

4
5

A4

6

A5

7

A6

8

A7

9

A8

GND

10

(TOP VIEW)

A2A1OE1

3212019

4
5
6
7
8

10 11 12 13

9

20
19
18
17
16
15
14
13
12
11

V

CC

V
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8

18
17
16
15
14

CC

Y1
Y2
Y3
Y4
Y5

FUNCTION TABLE

INPUTS

OE1 OE2 A

L L L L

L LH H
HXX Z
XHX Z

OUTPUT

Y

A8

GND

Y8

Y7

Y6 OE2

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Copyright  1993, Texas Instruments Incorporated

2–1

SN54F541, SN74F541

UNIT

OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SDFS021A – D3126, JANUAR Y 1989 – REVISED OCT OBER 1993

1
19

2
3
4
5
6
7
8
9

†

&

EN

1

18
17
16
15
14
13
12
11

logic diagram (positive logic)

1

OE1

19

OE2

2

Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8

A1 Y1

18

To Seven Other Channels

logic symbol

OE1
OE2

A1
A2
A3
A4
A5
A6
A7
A8

†

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

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

Supply voltage range, V
Input voltage range, 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

Current into any output in the low state: SN54F541 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range: SN54F541 –55°C to 125°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.

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

CC

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

I

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

SN74F541 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74F541 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

‡

CC

recommended operating conditions

V
V
V
I

IK

I

OH

I

OL

T

2–2

CC
IH
IL

A

Supply voltage 4.5 5 5.5 4.5 5 5.5 V
High-level input voltage 2 2 V
Low-level input voltage 0.8 0.8 V
Input clamp current –18 –18 mA
High-level output current –12 –15 mA
Low-level output current 48 64 mA
Operating free-air temperature –55 125 0 70 °C

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54F541 SN74F541

MIN NOM MAX MIN NOM MAX

SN54F541, SN74F541

PARAMETER

TEST CONDITIONS

UNIT

V

V

V

V

V

V

(

)

(

)

(INPUT)

(OUTPUT)

Any A

Y

ns

OE

Y

ns

OE

Y

ns

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SDFS021A – D3126, JANUARY 1989 – REVISED OCT OBER 1993

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

SN54F541 SN74F541

MIN TYP†MAX MIN TYP†MAX

V

IK

OH

OL

I

OZH

I

OZL

I

I

I

IH

I

IL

‡

I

OS

I

CC

†

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.

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

VCC = 4.75 V, IOH = – 3 mA 2.7

= 4.5

CC

VCC = 5.5 V, VO = 2.7 V 50 50 µA
VCC = 5.5 V, VO = 0.5 V –50 –50 µA
VCC = 5.5 V, VI = 7 V 0.1 0.1 mA
VCC = 5.5 V, VI = 2.7 V 20 20 µA
VCC = 5.5 V, VI = 0.5 V – 0.6 –0.6 mA
VCC = 5.5 V, VO = 0 –100 –225 –100 –225 mA

VCC = 5.5 V

IOH = – 12 mA 2 3.2
IOH = – 15 mA 2 3.1

IOL = 48 mA 0.38 0.55
IOL = 64 mA 0.42 0.55

Outputs high 28 35 28 35
Outputs low 62 75 62 75
Outputs disabled 40 55 40 55

mA

switching characteristics (see Note 2)

VCC = 5 V,
CL = 50 pF,

PARAMETER

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

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

PLZ

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

FROM
INPUT

TO

OUTPUT

RL = 500 Ω,
TA = 25°C

′F541 SN54F541 SN74F541

MIN TYP MAX MIN MAX MIN MAX

1.5 3.3 5.5 1 6.5 1.5 6

1.5 2.7 5.5 1 6.5 1.5 6
3 5.8 8 1.7 10 2.5 9.5

3.5 6.1 8.5 2.2 10 3 9.5

1.5 3.4 6 1 7 1.5 6.5

1.5 2.9 5.5 1 7.5 1.5 6

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

§

UNIT

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

2–3

SN54F541, SN74F541
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SDFS021A – D3126, JANUAR Y 1989 – REVISED OCT OBER 1993

2–4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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