ADS127L01IPBS - TEXAS INSTRUMENTS

October, 2015 − Rev. 0 1Publication Order Number:

74LVC240A/D

74LVC240A

Low-Voltage CMOS

Octal Buffer

With 5 V−Tolerant Inputs and Outputs

(3−State, Inverting)

The 74LVC240A is a high performance, inverting octal buffer

operating from a 1.2 to 3.6 V supply. High impedance TTL compatible

inputs significantly reduce current loading to input drivers while TTL

compatible outputs of fer improved switching noise performance. A VI

specification of 5.5 V allows 74LVC240A inputs to be safely driven

from 5 V devices. The 74LVC240A is suitable for memory address

driving and all TTL level bus oriented transceiver applications.

Current drive capability is 24 mA at the outputs. The Output Enable

(OE) input, when HIGH, disables the outputs by placing them in

a HIGH Z condition.

Features

•Designed for 1.2 V to 3.6 V VCC Operation

•5 V Tolerant − Interface Capability With 5 V TTL Logic

•Supports Live Insertion and Withdrawal

•IOFF Specification Guarantees High Impedance When VCC = 0 V

•24 mA Output Sink and Source Capability

•Near Zero Static Supply Current in All Three Logic States (10 mA)

Substantially Reduces System Power Requirements

•ESD Performance:

♦Human Body Model >2000 V

♦Machine Model >200 V

•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

MARKING

DIAGRAM

LVC

240A

ALYWG

TSSOP−20

DT SUFFIX

CASE 948E

See detailed ordering and shipping information in the package

dimensions section on page 7 of this data sheet.

ORDERING INFORMATION

www.onsemi.com

A = Assembly Location

L = Wafer Lot

Y = Year

W = Work Week

G= Pb−Free Package

(Note: Microdot may be in either location)

74LVC240A

www.onsemi.com

Figure 1. Pinout: 20−Lead (Top View)

1920 18 17 16 15 14

21 34567

VCC

2OE 1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3

1OE 1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND

Figure 2. LOGIC DIAGRAM

1OE 1

1D0 21O0

1D1 41O1

1D2 61O2

1D3 81O3

2OE 19

2D0 17 2O0

2D1 15 2O1

2D2 13 2O2

2D3 11 2O3

PIN NAMES

Function

Output Enable Inputs

Data Inputs

3−State Outputs

Pins

nOE

1Dn, 2Dn

1On, 2On

TRUTH TABLE

INPUTS OUTPUTS

1OE

2OE 1Dn

2Dn 1On, 2On

L L H

L H L

H X Z

H = High Voltage Level

L = Low Voltage Level

Z = High Impedance State

X = High or Low Voltage Level and Transitions Are Acceptable; for ICC reasons, DO NOT FLOAT Inputs

74LVC240A

www.onsemi.com

MAXIMUM RATINGS

Symbol Parameter Condition Value Unit

VCC DC Supply Voltage −0.5 to +6.5 V

VIDC Input Voltage −0.5 ≤ VI ≤ +6.5 V

VODC Output Voltage Output in 3−State −0.5 ≤ VO ≤ +6.5 V

Output in HIGH or LOW State

(Note 1) −0.5 ≤ VO ≤ VCC + 0.5 V

IIK DC Input Diode Current VI < GND −50 mA

IOK DC Output Diode Current VO < GND −50 mA

VO > VCC +50 mA

IODC Output Source/Sink Current ±50 mA

ICC DC Supply Current Per Supply Pin ±100 mA

IGND DC Ground Current Per Ground Pin ±100 mA

TSTG Storage Temperature Range −65 to +150 °C

TLLead Temperature, 1 mm from Case for

10 Seconds TL = 260 °C

TJJunction Temperature Under Bias TJ = 135 °C

qJA Thermal Resistance (Note 2) 110.7 °C/W

MSL Moisture Sensitivity Level 1

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be af fected.

1. IO absolute maximum rating must be observed.

2. Measured with minimum pad spacing on an FR4 board, using 10 mm−by−1 inch, 2 ounce copper trace no air flow.

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Min Typ Max Units

VCC Supply Voltage

Operating

Functional 1.65

1.2 3.6

3.6

VIInput Voltage 0 5.5 V

VOOutput Voltage

HIGH or LOW State

3−State 0

0VCC

5.5

IOH HIGH Level Output Current

VCC = 3.0 V − 3.6 V

VCC = 2.7 V − 3.0 V −24

−12

IOL LOW Level Output Current

VCC = 3.0 V − 3.6 V

VCC = 2.7 V − 3.0 V 24

TAOperating Free−Air Temperature −40 +125 °C

Dt/DVInput Transition Rise or Fall Rate

VCC = 1.65 V to 2.7 V

VCC = 2.7 V to 3.6 V 0

020

ns/V

Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond

the Recommended Operating Ranges limits may affect device reliability.

74LVC240A

www.onsemi.com

DC ELECTRICAL CHARACTERISTICS

Symbol Parameter Conditions

−405C to +855C−405C to +1255C

Unit

Min Typ

(Note 3) Max Min Typ

(Note 3) Max

VIH HIGH−level input

voltage VCC = 1.2 V 1.08 − − 1.08 − − V

VCC = 1.65 V to 1.95 V 0.65 x

VCC − − 0.65 x

VCC − −

VCC = 2.3 V to 2.7 V 1.7 − − 1.7 − −

VCC = 2.7 V to 3.6 V 2.0 − − 2.0 − −

VIL LOW−level input

voltage VCC = 1.2 V − − 0.12 − − 0.12 V

VCC = 1.65 V to 1.95 V − −0.35 x

VCC − − 0.35 x

VCC

VCC = 2.3 V to 2.7 V − − 0.7 − − 0.7

VCC = 2.7 V to 3.6 V − − 0.8 − − 0.8

VOH HIGH−level output

voltage VI = VIH or VIL V

IO = −100 mA;

VCC = 1.65 V to 3.6 V VCC −

0.2 − − VCC −

0.3 − −

IO = −4 mA; VCC = 1.65 V 1.2 − − 1.05 − −

IO = −8 mA; VCC = 2.3 V 1.8 − − 1.65 − −

IO = −12 mA; VCC = 2.7 V 2.2 − − 2.05 − −

IO = −18 mA; VCC = 3.0 V 2.4 − − 2.25 − −

IO = −24 mA; VCC = 3.0 V 2.2 − − 2.0 − −

VOL LOW−level output

voltage VI = VIH or VIL V

IO = 100 mA;

VCC = 1.65 V to 3.6 V − − 0.2 − − 0.3

IO = 4 mA; VCC = 1.65 V − − 0.45 − − 0.65

IO = 8 mA; VCC = 2.3 V − − 0.6 − − 0.8

IO = 12 mA; VCC = 2.7 V − − 0.4 − − 0.6

IO = 24 mA; VCC = 3.0 V − − 0.55 − − 0.8

IIInput leakage current VI = 5.5V or GND VCC = 3.6 V −±0.1 ±5 − ±0.1 ±20 mA

IOZ OFF−state output

current VI = VIH or VIL;

VO = 5.5 V or GND; VCC = 3.6 V −±0.1 ±5 − ±0.1 ±20 mA

IOFF Power−off leakage

current VI or VO = 5.5 V; VCC = 0.0 V −±0.1 ±10 − ±0.1 ±20 mA

ICC Supply current VI = VCC or GND; IO = 0 A;

VCC = 3.6 V − 0.1 10 − 0.1 40 mA

DICC Additional supply

current per input pin;

VI = VCC − 0.6 V ; IO = 0 A;

VCC = 2.7 V to 3.6 V

− 5 500 − 5 5000 mA

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

3. All typical values are measured at TA = 25°C and VCC = 3.3 V, unless stated otherwise.

74LVC240A

www.onsemi.com

AC ELECTRICAL CHARACTERISTICS (tR = tF = 2.5 ns)

Symbol Parameter Conditions

−405C to +855C−405C to +1255C

Unit

Min Typ1Max Min Typ1Max

tpd Propagation Delay (Note 5)

nDn to nOn VCC = 1.2 V − 16.0 − − − − ns

VCC = 1.65 V to 1.95 V 1.0 5.7 12.7 1.0 − 14.6

VCC = 2.3 V to 2.7 V 0.5 3.0 6.6 0.5 − 7.6

VCC = 2.7 V 1.5 3.1 7.0 1.5 − 9.0

VCC = 3.0 V to 3.6 V 1.3 2.6 5.5 1.3 − 7.0

ten Enable Time (Note 6)

nOE to nOn VCC = 1.2 V − 19.0 − − − − ns

VCC = 1.65 V to 1.95 V 1.5 6.3 15.9 1.5 − 18.3

VCC = 2.3 V to 2.7 V 1.5 3.6 8.8 1.5 − 10.1

VCC = 2.7 V 1.0 3.7 8.5 1.0 − 11.0

VCC = 3.0 V to 3.6 V 1.1 2.9 7.0 1.1 − 9.0

tdis Disable Time (Note 7)

nOE to nOn VCC = 1.2 V − 17.0 − − − − ns

VCC = 1.65 V to 1.95 V 2.3 4.1 9.9 2.3 − 11.4

VCC = 2.3 V to 2.7 V 1.0 3.4 5.6 1.0 − 6.5

VCC = 2.7 V 1.5 3.1 7.5 1.5 − 9.5

VCC = 3.0 V to 3.6 V 1.4 2.9 6.0 1.4 − 7.5

tsk(0) Output Skew Time (Note 8) − − 1.0 − − 1.5 ns

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

4. Typical values are measured at TA = 25°C and VCC = 3.3 V, unless stated otherwise.

5. tpd is the same as tPLH and tPHL.

6. ten is the same as tPZL and tPZH.

7. tdis is the same as tPLZ and tPHZ.

8. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

DYNAMIC SWITCHING CHARACTERISTICS

Symbo

Characteristic Condition

TA = +25°C

Unit

Min Typ Max

VOLP Dynamic LOW Peak Voltage (Note 9) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V

VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V 0.8

0.6 V

VOLV Dynamic LOW Valley Voltage (Note 9) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V

VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V −0.8

−0.6 V

9. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is

measured in the LOW state.

CAPACITIVE CHARACTERISTICS

Symbol Parameter Condition Typical Unit

CIN Input Capacitance VCC = 3.3 V, VI = 0 V or VCC 5.0 pF

COUT Output Capacitance VCC = 3.3 V, VI = 0 V or VCC 7.0 pF

CPD Power Dissipation Capacitance

(Note 10) Per input; VI = GND or VCC pF

VCC = 1.65 V to 1.95 V 2.0

VCC = 2.3 V to 2.7 V 5.2

VCC = 3.0 V to 3.6 V 8.1

10.CPD is used to determine the dynamic power dissipation (PD in mW).

PD = CPD x VCC2 x fi x N + S (CL x VCC2 x fo) where:

fi = input frequency in MHz; fo = output frequency in MHz

CL = output load capacitance in pF VCC = supply voltage in Volts

N = number of outputs switching

S(CL x VCC2 x fo) = sum of the outputs.

74LVC240A

www.onsemi.com

VCC

0 V

≈ 0 V

1OE, 2OE

1On, 2On

tPZH

≈ 3.0 V

tPHZ

tPZL tPLZ

1On, 2On

Vmo

Figure 3. AC Waveforms

Vmi

VCC

VOH - 0.3 V

VOL + 0.3 V

GND

WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES

tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns

Symbol

VCC

3.3 V ± 0.3 V 2.7 V VCC < 2.7 V

Vmi

Vmo

VHZ

VLZ

Vmi

1.5 V

VOL + 0.3 V

VOH − 0.3 V

1.5 V

VOL + 0.3 V

VOH − 0.3 V

VCC/2

VOL + 0.15 V

VOH − 015 V

WAVEFORM 1 - PROPAGATION DELAYS

tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns

2.7 V

0 V

VOH

VOL

1Dn, 2Dn

1On, 2On

tPLH

tPHL

1.5 V1.5 V

1.5 V 1.5 V

74LVC240A

www.onsemi.com

OPEN

PULSE

GENERATOR

DUT

VCC

VEXT

GND

CL includes jig and probe capacitance

RT = ZOUT of pulse generator (typically 50 W)

R1 = RL

VIVO

Supply Voltage Input Load VEXT

VCC (V) VItr, tfCLRLtPLH, tPHL tPLZ, tPZL tPHZ, tPZH

1.2 VCC ≤ 2 ns 30 pF 1 kWOpen 2 x VCC GND

1.65 − 1.95 VCC ≤ 2 ns 30 pF 1 kWOpen 2 x VCC GND

2.3 − 2.7 VCC ≤ 2 ns 30 pF 500 WOpen 2 x VCC GND

2.7 2.7 V ≤ 2.5 ns 50 pF 500 WOpen 2 x VCC GND

3 − 3.6 2.7 V ≤ 2.5 ns 50 pF 500 WOpen 2 x VCC GND

Figure 4. Test Circuit

ORDERING INFORMATION

Device Package Shipping†

74LVC240ADTR2G TSSOP−20

(Pb−Free) 2500 / Tape & Reel

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

74LVC240A

www.onsemi.com

PACKAGE DIMENSIONS

TSSOP−20

CASE 948E−02

ISSUE C

DIM

MIN MAX MIN MAX

INCHES

6.60 0.260

MILLIMETERS

B4.30 4.50 0.169 0.177

C1.20 0.047

D0.05 0.15 0.002 0.006

F0.50 0.75 0.020 0.030

G0.65 BSC 0.026 BSC

H0.27 0.37 0.011 0.015

J0.09 0.20 0.004 0.008

J1 0.09 0.16 0.004 0.006

K0.19 0.30 0.007 0.012

K1 0.19 0.25 0.007 0.010

L6.40 BSC 0.252 BSC

M0 8 0 8

____

NOTES:

1. DIMENSIONING AND TOLERANCING PER

ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION:

MILLIMETER.

3. DIMENSION A DOES NOT INCLUDE

MOLD FLASH, PROTRUSIONS OR GATE

BURRS. MOLD FLASH OR GATE BURRS

SHALL NOT EXCEED 0.15 (0.006) PER SIDE.

4. DIMENSION B DOES NOT INCLUDE

INTERLEAD FLASH OR PROTRUSION.

INTERLEAD FLASH OR PROTRUSION

SHALL NOT EXCEED 0.25 (0.010) PER SIDE.

5. DIMENSION K DOES NOT INCLUDE

DAMBAR PROTRUSION. ALLOWABLE

DAMBAR PROTRUSION SHALL BE 0.08

(0.003) TOTAL IN EXCESS OF THE K

DIMENSION AT MAXIMUM MATERIAL

CONDITION.

6. TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

7. DIMENSION A AND B ARE TO BE

DETERMINED AT DATUM PLANE −W−.

ÍÍÍÍ

110

1120

PIN 1

IDENT

−T−

0.100 (0.004)

DGH

SECTION N−N

JJ1

−W−

SEATING

PLANE

−V−

−U−

0.10 (0.004) V S

20X REFK

L/2

U0.15 (0.006) T

DETAIL E

0.25 (0.010)

DETAIL E

6.40 0.252

--- ---

U0.15 (0.006) T

7.06

16X

0.36 16X

1.26

0.65

DIMENSIONS: MILLIMETERS

PITCH

SOLDERING FOOTPRINT*

*For additional information on our Pb−Free strategy and soldering

details, please download the ON Semiconductor Soldering and

Mounting Techniques Reference Manual, SOLDERRM/D.

74LVC240A

www.onsemi.com

ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.

SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed

at www.onsemi.com/site/pdf/Patent − Marking.pdf. S CILLC r eserves the r ight to make changes without f urther n otice to any product s herein. S CILLC makes n o warranty, representation

or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and

specifically disclaims any and all l iabilit y, including without limitation special, consequential or i ncident al d amages. “Typical” parameters w hich may be provided in SCILLC data sheet s

and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each

customer application b y c ust omer’s technical e xperts. SCILLC does not c onvey a ny l icense u nder its patent r ight s n or the rights of o thers. SCILLC products a re n ot d esigned, i nt ended,

or authorized for use as c omponent s i n s yst ems i nt ended f or s urgic al i m plant i nt o the body, or other applications intended t o s upport o r s ust ain life, o r for any other application in which

the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or

unauthorized application, Buyer shall indemnify and hold SCILLC an d it s officers, employees, subsidiar ies, a ffiliates, and distributors harmless against all claims, costs, damages, and

expenses, and r easonable a ttorney f ees a rising o ut of, directly o r i ndirectly, a ny c laim o f p ersonal i njury o r d eath a ssociated w it h s uch u nintended o r u naut horized u se, e ven if such c laim

alleges that SCILLC was negligent regarding the d esign or manufacture of the p art. SCILLC is a n Equal O pportunit y/Aff irmative A ction E mployer . T his l iterature i s subject t o all applicable

UBLICATION ORDERING INFORMATION

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5817−1050

74LVC240A/D

LITERATURE FULFILLMENT:

Literature Distribution Center for ON Semiconductor

19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA

Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada

Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada

Email: orderlit@onsemi.com

ON Semiconductor Website: www.onsemi.com

Order Literature: http://www.onsemi.com/orderlit

For additional information, please contact your loc

Sales Representative