Texas Instruments SN74LVC125AD, SN74LVC125ADBLE, SN74LVC125ADBR, SN74LVC125ADR, SN74LVC125APWLE Datasheet

SN74LVC125A

QUADRUPLE BUS BUFFER GATE

WITH 3-STATE OUTPUTS

SCAS290F – JANUARY 1993 – REVISED JUNE 1998

D

EPIC

 (Enhanced-Performance Implanted

CMOS) Submicron Process

D

ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)

D

Latch-Up Performance Exceeds 250 mA Per
JESD 17

D

Typical V
< 0.8 V at V

D

Typical V
> 2 V at V

D

Inputs Accept Voltages to 5.5 V

D

Package Options Include Plastic

(Output Ground Bounce)

OLP

= 3.3 V, TA = 25°C

CC

(Output VOH Undershoot)

OHV

= 3.3 V, TA = 25°C

CC

D, DB, OR PW PACKAGE

(TOP VIEW)

1OE

1A
1Y

2OE

2A
2Y

GND

1
2
3
4
5
6
7

14
13
12
11
10

V
4OE
4A
4Y
3OE
3A

9

3Y

8

CC

Small-Outline (D), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages

description

This quadruple bus buffer gate is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVC125A features independent line drivers with 3-state outputs. Each output is disabled when the

associated output-enable (OE

) input is high.

T o ensure the high-impedance state during power up or power down, OE

should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators

in a mixed 3.3-V/5-V system environment.
The SN74LVC125A is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each buffer)

INPUTS

OE A

L H H
L LL

HXZ

OUTPUT

Y

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC is a trademark of Texas Instruments Incorporated.

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  1998, Texas Instruments Incorporated

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SN74LVC125A
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS

SCAS290F – JANUARY 1993 – REVISED JUNE 1998

logic symbol

†

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

†

1OE

1A

2OE

2A

3OE

3A

4OE

4A

1
2

4
5

10
9

13
12

EN

1

logic diagram (positive logic)

1

1OE

2

1A 1Y

4

2OE

5

2A 2Y

3

6

3OE

3A 3Y

4OE

4A 4Y

10

9

13

12

3

1Y

6

2Y

8

3Y

11

4Y

8

11

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

Supply voltage range, V
Input voltage range, V
Output voltage range, V
Input clamp current, I
Output clamp current, I
Continuous output current, I
Continuous current through V
Package thermal impedance, θ

Storage temperature range, T

‡

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stressratings 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: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.

2. The value of VCC is provided in the recommended operating conditions table.

3. The package thermal impedance is calculated in accordance with JESD 51.

–0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CC

(see Note 1) –0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

(see Notes 1 and 2) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

(VI < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IK

(VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OK

±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

or GND ±100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CC

(see Note 3): D package 127°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JA

DB package 158°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PW package 170°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

‡

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

VCCSuppl

oltage

V

IOHHigh-level output current

mA

IOLLow-level output current

mA

V

V

I

12 mA

SN74LVC125A

QUADRUPLE BUS BUFFER GATE

WITH 3-STATE OUTPUTS

SCAS290F – JANUARY 1993 – REVISED JUNE 1998

recommended operating conditions (see Note 4)

MIN MAX UNIT

pp

y v

V

V

V
V

∆t/∆v Input transition rise or fall rate 0 8 ns/V
T

NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

High-level input voltage

IH

Low-level input voltage

IL

Input voltage 0 5.5 V

I

Output voltage 0 V

O

p

p

Operating free-air temperature –40 85 °C

A

Implications of Slow or Floating CMOS Inputs

, literature number SCBA004.

Operating 1.65 3.6
Data retention only 1.5
VCC = 1.65 V to 1.95 V 0.65 × V
VCC = 2.3 V to 2.7 V
VCC = 2.7 V to 3.6 V 2
VCC = 1.65 V to 1.95 V 0.35 × V
VCC = 2.3 V to 2.7 V 0.7
VCC = 2.7 V to 3.6 V 0.8

VCC = 1.65 V –4
VCC = 2.3 V –8
VCC = 2.7 V –12
VCC = 3 V –24
VCC = 1.65 V 4
VCC = 2.3 V 8
VCC = 2.7 V 12
VCC = 3 V 24

CC

1.7

CC

V

CC

V

V

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

PARAMETER TEST CONDITIONS

IOH = –100 µA 1.65 V to 3.6 V VCC–0.2
IOH = –4 mA 1.65 V 1.2

OH

V

OL

I

I

I

CC

∆I

CC

C

†

All typical values are at VCC = 3.3 V, TA = 25°C.

i

IOH = –8 mA 2.3 V 1.7

= –

OH

IOH = –24 mA 3 V 2.2
IOL = 100 µA 1.65 V to 3.6 V 0.2
IOL = 4 mA 1.65 V 0.45
IOL = 8 mA 2.3 V 0.7
IOL = 12 mA 2.7 V 0.4
IOL = 24 mA 3 V 0.55
VI = 5.5 V or GND 3.6 V ±5 µA
VI = VCC or GND, IO = 0 3.6 V 10 µA
One input at VCC – 0.6 V,

Other inputs at VCC or GND
VI = VCC or GND 3.3 V 5 pF

V

CC

2.7 V 2.2
3 V 2.4

2.7 V to 3.6 V 500 µA

MIN TYP†MAX UNIT

V

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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