74LCX541FT(AJ) Datasheet 74LCX541FT(AJ), 74LCX541FT(AE), 74LCX16245MTDX | P1-P3

74LCX541FT

1

CMOS Digital Integrated Circuits Silicon Monolithic

74LCX541FT

Start of commercial production

2013-10

1.

1. Functional Description

Functional Description

• Low-Voltage Octal Bus Buffer with 5-V Tolerant Inputs and Outputs

2.

2. General

General

The 74LCX541FT is a high-performance CMOS octal bus buffer. Designed for use in 3.3-V systems, it achieves

high-speed operation while maintaining the CMOS low power dissipation.

The device is designed for low-voltage (3.3 V) V

CC

applications, but it could be used to interface to 5 V supply

environment for both inputs and outputs.

The 74LCX541FT is a non-inverting 3-state buffer having two active-low output enables. When either OE1 or OE2

are high, the terminal outputs are in the high-impedance state. This device is designed to be used with 3-state

memory address drivers, etc.

All inputs are equipped with protection circuits against static discharge.

3.

3. Features

Features

(1) Low-voltage operation: V

CC

= 1.65 to 3.6 V

(2) High-speed operation: t

pd

= 6.5 ns (max) (V

CC

= 3.0 to 3.6 V)

(3) Output current: |I

OH

|/I

OL

= 24 mA (min) (V

CC

= 3.0 to 3.6 V)

(4) Power-down protection provided on all inputs and outputs

(5) Pin and function compatible with the 74 series

(74LVC/ALVC/ etc.) 541 type

4.

4. Packaging

Packaging

TSSOP20B

2014-06-24

Rev.2.0

74LCX541FT

2

5.

5. Pin Assignment

Pin Assignment

6.

6. Marking

Marking

7.

7. IEC Logic Symbol

IEC Logic Symbol

2014-06-24

Rev.2.0

74LCX541FT

3

8.

8. Truth Table

Truth Table

Input

OE1

H

X

L

Input

OE2

X

H

L

Inputs

An

X

H

L

Outputs

Z

H

L

X: Don't care

Z: High impedance

9.

9. Absolute Maximum Ratings (Note)

Absolute Maximum Ratings (Note)

Characteristics

Supply voltage

Input voltage

Output voltage

Input diode current

Output diode current

Output current

Power dissipation

V

CC

/ground current

Storage temperature

Symbol

V

CC

V

IN

V

OUT

V

OUT

I

IK

I

OK

I

OUT

P

D

I

CC

/I

GND

T

stg

Note

(Note 1)

(Note 2)

(Note 3)

Rating

-0.5 to 6.5

-0.5 to V

CC

+ 0.5

-50

±50

180

±100

-65 to 150

Unit

V

mA

mW

mA



Note: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even

destruction.

Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the

significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even

if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum

ratings and the operating ranges.

Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook

(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report

and estimated failure rate, etc).

Note 1: Output in OFF state.

Note 2: High (H) or Low (L) state. I

OUT

absolute maximum rating must be observed.

Note 3: V

OUT

< GND, V

OUT

> V

CC

2014-06-24

Rev.2.0

74LCX541FT(AJ)

74LCX541FT(AJ)

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