Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Transducer Converter, Bidirectional, Three-state TSSOP 24

FEATURES

SUPPORTS DEFENSE, AEROSPACE,

PW PACKAGE

(TOP VIEW)

CCA

DIR

GND

CCB

GND

DESCRIPTION/ORDERING INFORMATION

SN74LVC8T245-EP

www.ti.com

........................................................................................................................................................................................... SCES770 – DECEMBER 2008

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

• Control Inputs V

Levels Are Referenced to

CCA

Voltage AND MEDICAL APPLICATIONS

• Controlled Baseline

• V

Isolation Feature – If Either V

Input Is at

GND, All Are in the High-Impedance State

• One Assembly/Test Site

• One Fabrication Site

• Fully Configurable Dual-Rail Design Allows

Each Port to Operate Over the Full 1.65-V to

• Available in Military ( – 55 ° C/125 ° C)

Temperature Range

(1)

5.5-V Power-Supply Range

• Extended Product Life Cycle

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• Extended Product-Change Notification

• Product Traceability

• ESD Protection Exceeds JESD 22

– 4000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101) (1) Additional temperature ranges are available – contact factory

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74LVC8T245

is optimized to operate with V

CCA

and V

CCB

set at 1.65 V to 5.5 V. The A port is designed to track V

CCA

. V

CCA

accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track V

CCB

. V

CCB

accepts any supply

voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the

1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.

ORDERING INFORMATION

(1)

PACKAGE

(2)

ORDERABLE PART NUMBER TOP-SIDE MARKING

– 55 ° C to 125 ° C TSSOP – PW Tape and reel SN74LVC8T245MPWREP NH245MEP

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

Web site at www.ti.com .

(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package .

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (13 pages)

PAGE 1
SN74LVC8T245-EP www.ti.com...........................................................................................................................................................................................
PAGE 2
SN74LVC8T245-EP SCES770 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com DESCRIPTION/ORDERING INFORMATION (CONTINUED) The SN74LVC8T245 is designed for asynchronous communication between two data buses.
PAGE 3
SN74LVC8T245-EP www.ti.com........................................................................................................................................................................................... SCES770 – DECEMBER 2008 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) VCCA VCCB Supply voltage range VI Input voltage range (2) MIN MAX –0.5 6.5 I/O ports (A port) –0.5 6.5 I/O ports (B port) –0.5 6.5 Control inputs –0.5 6.
PAGE 4
SN74LVC8T245-EP SCES770 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com Recommended Operating Conditions (1) (2) (3) (4) VCCI VCCA VCCB VCCO Supply voltage 1.65 V to 1.95 V High-level input voltage VIH MAX 1.65 5.5 1.65 5.5 1.7 3 V to 3.6 V VCCI × 0.7 1.65 V to 1.95 V VIL Data inputs (5) VCCI × 0.35 2.3 V to 2.7 V 0.
PAGE 5
SN74LVC8T245-EP www.ti.com........................................................................................................................................................................................... SCES770 – DECEMBER 2008 Electrical Characteristics (1) (2) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VOH VOL II DIR VCCA VCCB IOH = –100 µA, TEST CONDITIONS VI = VIH 1.65 V to 4.5 V 1.65 V to 4.5 V IOH = –4 mA, VI = VIH 1.65 V 1.
PAGE 6
SN74LVC8T245-EP SCES770 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH tPZL tPZH tPZL VCCB = 1.8 V ± 0.15 V FROM (INPUT) TO (OUTPUT) A B 1.
PAGE 7
SN74LVC8T245-EP www.ti.com........................................................................................................................................................................................... SCES770 – DECEMBER 2008 Switching Characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH tPZL tPZH tPZL VCCB = 1.8 V ± 0.15 V FROM (INPUT) TO (OUTPUT) A B 1.
PAGE 8
SN74LVC8T245-EP SCES770 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com PARAMETER MEASUREMENT INFORMATION 2 × VCCO S1 RL From Output Under Test Open GND CL (see Note A) TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 2 × VCCO GND RL tw LOAD CIRCUIT VCCI VCCI/2 Input VCCO CL RL VTP 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V 5 V ± 0.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PAGE 12
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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.