Datasheet

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SN74LVT245B

3.3-V ABT OCTAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES004H − JANUARY 1995 − 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)

DB, DW, NS, OR PW PACKAGE

(TOP VIEW)

DIR

GND

RGY PACKAGE

(TOP VIEW)

120

10 11

GND

DIR

description/ordering information

This octal bus transceiver 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 SN74LVT245B is designed for asynchronous communication between data buses. The device transmits

data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE

) input can be used to disable the device so the buses are

effectively isolated.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

QFN − RGY Tape and reel SN74LVT245BRGYR LX245B

SOIC DW

Tube SN74LVT245BDW

LVT245B

SOIC − DW

Tape and reel SN74LVT245BDWR

LVT245B

SOP − NS Tape and reel SN74LVT245BNSR LVT245B

−40°C to 85°C

SSOP − DB Tape and reel SN74LVT245BDBR LX245B

40 C

85 C

TSSOP PW

Tube SN74LVT245BPW

LX245B

TSSOP − PW

Tape and reel SN74LVT245BPWR

LX245B

VFBGA − GQN

Tape and reel

SN74LVT245BGQNR

LX245B

VFBGA − ZQN (Pb-free)

Tape and reel

SN74LVT245BZQNR

LX245B

†

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 (19 pages)

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SN74LVT245B 3.
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SN74LVT245B 3.3-V ABT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES004H − JANUARY 1995 − 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.
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SN74LVT245B 3.3-V ABT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES004H − JANUARY 1995 − 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.
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SN74LVT245B 3.3-V ABT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES004H − JANUARY 1995 − 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 A or B UNIT −1.2 V VCC−0.2 2.4 V 2 IOL = 100 μA 0.2 IOL = 24 mA 0.
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SN74LVT245B 3.3-V ABT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES004H − JANUARY 1995 − 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.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 26-Aug-2013 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 12-Aug-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 SN74LVT245BDBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.0 Q1 SN74LVT245BDWR SOIC DW 20 2000 330.0 24.4 10.8 13.3 2.7 12.0 24.0 Q1 SN74LVT245BNSR 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 12-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVT245BDBR SN74LVT245BDWR SSOP DB 20 2000 367.0 367.0 38.0 SOIC DW 20 2000 367.0 367.0 45.0 SN74LVT245BNSR SO NS 20 2000 367.0 367.0 45.0 SN74LVT245BPWR TSSOP PW 20 2000 367.0 367.0 38.0 SN74LVT245BRGYR VQFN RGY 20 3000 367.0 367.0 35.
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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.
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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.