Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Buffer, driver TSSOP 20

SN74LVT244B

3.3-V ABT OCTAL BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCAS354J − FEBRUARY 1994 − REVISED SEPTEMBER 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D Supports Mixed-Mode Signal Operation

(5-V Input and Output Voltages With

3.3-V V

)

D Supports Unregulated Battery Operation

Down to 2.7 V

D Typical V

OLP

(Output Ground Bounce)

<0.8 V at V

= 3.3 V, T

= 25°C

D I

off

and Power-Up 3-State Support Hot

Insertion

D Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

D ESD Protection Exceeds JESD 22

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

− 1000-V Charged-Device Model (C101)

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

DB, DW, NS, OR PW PACKAGE

(TOP VIEW)

RGY PACKAGE

(TOP VIEW)

120

10 11

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

2A1

GND

1OE

description/ordering information

This octal buffer and line driver is designed specifically for low-voltage (3.3-V) V

operation, but with the

capability to provide a TTL interface to a 5-V system environment.

The SN74LVT244B is organized as two 4-bit line drivers with separate output-enable (OE

) inputs. When OE

is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the

high-impedance state.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

QFN − RGY Tape and reel SN74LVT244BRGYR LX244B

SOIC DW

Tube SN74LVT244BDW

LVT244B

SOIC − DW

Tape and reel SN74LVT244BDWR

LVT244B

SOP − NS Tape and reel SN74LVT244BNSR LVT244B

−40°C to 85°C

SSOP − DB Tape and reel SN74LVT244BDBR LX244B

40 C

85 C

TSSOP PW

Tube SN74LVT244BPW

LX244B

TSSOP − PW

Tape and reel SN74LVT244BPWR

LX244B

VFBGA − GQN

Tape and reel

SN74LVT244BGQNR

LX244B

VFBGA − ZQN (Pb-free)

Tape and reel

SN74LVT244BZQNR

LX244B

†

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

available at www.ti.com/sc/package.

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.

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.

Summary of content (21 pages)

PAGE 1
SN74LVT244B 3.
PAGE 2
SN74LVT244B 3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS354J − FEBRUARY 1994 − REVISED SEPTEMBER 2003 description/ordering information (continued) To 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. This device is fully specified for hot-insertion applications using Ioff and power-up 3-state.
PAGE 3
SN74LVT244B 3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS354J − FEBRUARY 1994 − REVISED SEPTEMBER 2003 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.
PAGE 4
SN74LVT244B 3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS354J − FEBRUARY 1994 − REVISED SEPTEMBER 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH TEST CONDITIONS VCC = 2.7 V, II = −18 mA VCC = 2.7 V to 3.6 V, IOH = −100 μA VCC = 2.7 V, IOH = −8 mA VCC = 3 V, IOH = −32 mA VCC = 2 2.7 7V VOL VCC = 3 V Control inputs II Data inputs † ‡ MIN TYP† MAX UNIT −1.2 V VCC−0.2 2.4 V 2 IOL = 100 μA 0.
PAGE 5
SN74LVT244B 3.3-V ABT OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SCAS354J − FEBRUARY 1994 − REVISED SEPTEMBER 2003 PARAMETER MEASUREMENT INFORMATION 500 Ω From Output Under Test 6V Open S1 GND CL = 50 pF (see Note A) 500 Ω TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 6V GND 2.7 V LOAD CIRCUIT Timing Input 1.5 V 0V tw tsu th 2.7 V 1.5 V Input 2.7 V 1.5 V Data Input 1.5 V 1.5 V 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 2.7 V 2.7 V 1.
PAGE 6
PACKAGE OPTION ADDENDUM www.ti.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 8-Jul-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74LVT244BDBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.0 Q1 SN74LVT244BDWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN74LVT244BNSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 8-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVT244BDBR SN74LVT244BDWR SSOP DB 20 2000 367.0 367.0 38.0 SOIC DW 20 2000 367.0 367.0 45.0 SN74LVT244BNSR SO NS 20 2000 367.0 367.0 45.0 SN74LVT244BPWR TSSOP PW 20 2000 367.0 367.0 38.0 SN74LVT244BRGYR VQFN RGY 20 3000 367.0 367.0 35.0 SN74LVT244BZQNR BGA MICROSTAR JUNIOR ZQN 20 1000 338.
PAGE 11
PAGE 12
PAGE 13
PAGE 14
PAGE 15
PAGE 16
PAGE 17
PAGE 18
PAGE 19
PAGE 20
MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters.
PAGE 21
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.