2024年4月16日发(作者：)

元器件交易网

SCLS269O – DECEMBER 1995 – REVISED JULY 2003

SN54AHCT541, SN74AHCT541

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

D

Inputs Are TTL-Voltage Compatible

D

Latch-Up Performance Exceeds 250 mA Per

D

JESD 17

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

J OR W PACKAGE

DB, DGV, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

description/ordering information

The ’AHCT541 octal buffers/drivers are ideal for

driving bus lines or buffer memory address

registers. These devices feature 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

(OE1 or OE2) input is high, all corresponding

outputs are in the high-impedance state. The

outputs provide noninverted data when they are

not in the high-impedance state.

To ensure the high-impedance state during power

up or power down, OE should be tied to V

CC

through a pullup resistor; the minimum value of

the resistor is determined by the current-sinking

capability of the driver.

OE1

A1

A2

A3

A4

A5

A6

A7

A8

GND

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

V

CC

OE2

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y8

FK PACKAGE

(TOP VIEW)

A

2

A

1

O

E

1

V

C

C

A3

A4

A5

A6

A7

4

5

6

7

8

3212019

18

17

16

15

14

910111213

O

E

2

Y1

Y2

Y3

Y4

Y5

ORDERING INFORMATION

T

A

PDIP – N

SOICDWSOIC – DW

40

°C to 85

Cto85

°C–40

SOP – NS

SSOP – DB

TSSOPPWTSSOP – PW

TVSOP – DGV

CDIP – J

–55°C to 125°C

CFP – W

LCCC – FK

PACKAGE

†

Tube

Tube

Tape and reel

Tape and reel

Tape and reel

Tube

Tape and reel

Tape and reel

Tube

Tube

Tube

ORDERABLE

PART NUMBER

SN74AHCT541N

SN74AHCT541DW

SN74AHCT541DWR

SN74AHCT541NSR

SN74AHCT541DBR

SN74AHCT541PW

SN74AHCT541PWR

SN74AHCT541DGVR

SNJ54AHCT541J

SNJ54AHCT541W

SNJ54AHCT541FK

TOP-SIDE

MARKING

SN74AHCT541N

AHCT541

AHCT541

HB541

HB541

HB541

SNJ54AHCT541J

SNJ54AHCT541W

SNJ54AHCT541FK

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at /sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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.

Copyright  2003, Texas Instruments Incorporated

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•

A

8

G

N

D

Y

8

Y

7

Y

6

1

元器件交易网

SCLS269O – DECEMBER 1995 – REVISED JULY 2003

SN54AHCT541, SN74AHCT541

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

FUNCTION TABLE

(each buffer/driver)

INPUTS

OE1

L

L

H

X

OE2

L

L

X

H

A

L

H

X

X

OUTPUT

Y

L

H

Z

Z

logic diagram (positive logic)

OE1

OE2

1

19

A1

218

Y1

To Seven Other Channels

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

Output voltage range, V

O

(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V

CC

+ 0.5 V

Input clamp current, I

IK

(V

I

< 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20 mA

Output clamp current, I

OK

(V

O

< 0 or V

O

> V

CC

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA

Continuous output current, I

O

(V

O

= 0 to V

CC

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA

Continuous current through V

CC

or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±75 mA

Package thermal impedance, θ

JA

(see Note 2):DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W

DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°C/W

DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W

N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W

NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W

PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W

Storage temperature range, T

stg

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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.

NOTES: input and output voltage ratings may be exceeded if the input and output current ratings are observed.

package thermal impedance is calculated in accordance with JESD 51-7.

2

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•