Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Transducer Converter, Bidirectional, Three-state SC 70 6

FEATURES

SUPPORTS DEFENSE, AEROSPACE,

CCA

CCB

GND

DCK PACKAGE

(TOP VIEW)

See mechanical drawings for dimensions.

DIR

DESCRIPTION/ORDERING INFORMATION

SN74LVC1T45-EP

www.ti.com

........................................................................................................................................................................................... SCES768 – NOVEMBER 2008

SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

• Fully Configurable Dual-Rail Design Allows • Latch-Up Performance Exceeds 100 mA Per

Each Port to Operate Over the Full 1.65-V to JESD 78, Class II

5.5-V Power-Supply Range

• ESD Protection Exceeds JESD 22

• V

Isolation Feature – If Either V

Input Is at

– 2000-V Human-Body Model (A114-A)

GND, Both Ports Are in the High-Impedance

– 200-V Machine Model (A115-A)

State

– 1000-V Charged-Device Model (C101)

• DIR Input Circuit Referenced to V

CCA

• Low Power Consumption, 4- µ A Max I

• ± 24-mA Output Drive at 3.3 V AND MEDICAL APPLICATIONS

• Controlled Baseline

• I

off

Supports Partial-Power-Down Mode

Operation

• One Assembly/Test Site

• One Fabrication Site

• Max Data Rates

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

– 420 Mbps (3.3-V to 5-V Translation)

Temperature Range

(1)

– 210 Mbps (Translate to 3.3 V)

• Extended Product Life Cycle

– 140 Mbps (Translate to 2.5 V)

• Extended Product-Change Notification

– 75 Mbps (Translate to 1.8 V)

• Product Traceability

(1) Additional temperature ranges are available – contact factory

This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. 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

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-V voltage nodes.

ORDERING INFORMATION

(1)

PACKAGE

(2)

ORDERABLE PART NUMBER TOP-SIDE MARKING

(3)

– 55 ° C to 125 ° C SOT (SC-70) – DCK Reel of 3000 SN74LVC1T45MDCKREP NXG

(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 .

(3) The actual top-side marking has one additional character that designates the assembly/test site.

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 (22 pages)

PAGE 1
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS FEATURES 1 • • • • • • • • Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.
PAGE 2
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com DESCRIPTION/ORDERING INFORMATION (CONTINUED) The SN74LVC1T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs.
PAGE 3
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX Supply voltage range –0.5 6.5 V VI Input voltage range (2) –0.5 6.5 V VO Voltage range applied to any output in the high-impedance or power-off state (2) –0.
PAGE 4
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com Recommended Operating Conditions (1) (2) (3) 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 (4) VCCI × 0.35 2.3 V to 2.7 V 0.7 3 V to 3.
PAGE 5
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 Electrical Characteristics (1) (2) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = –100 µA IOH = –8 mA 1.65 V to 4.5 V 1.65 V to 4.5 V 1.65 V 1.65 V 1.2 2.3 V 2.3 V 1.
PAGE 6
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.
PAGE 7
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 Switching Characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.
PAGE 8
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com Power-Up Considerations A proper power-up sequence always should be followed to avoid excessive supply current, bus contention, oscillations, or other anomalies. To guard against such power-up problems, take the following precautions: 1.
PAGE 9
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 TYPICAL CHARACTERISTICS TYPICAL PROPAGATION DELAY (A to B) vs LOAD CAPACITANCE TA = 25°C, VCCA = 1.8 V 10 10 9 9 8 VCCB = 1.8 V 8 7 7 6 6 t PLH− ns t PHL − ns VCCB = 1.8 V VCCB = 2.5 V 5 4 VCCB = 2.5 V 5 VCCB = 3.3 V 4 VCCB = 5 V VCCB = 3.
PAGE 10
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) TYPICAL PROPAGATION DELAY (A to B) vs LOAD CAPACITANCE TA = 25°C, VCCA = 2.5 V 10 10 9 9 8 8 7 VCCB = 1.8 V 6 t PLH − ns t PHL − ns 7 VCCB = 1.8 V 5 6 5 VCCB = 2.5 V 4 4 VCCB = 3.3 V 3 3 VCCB = 5 V VCCB = 2.
PAGE 11
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 TYPICAL CHARACTERISTICS (continued) TYPICAL PROPAGATION DELAY (A to B) vs LOAD CAPACITANCE TA = 25°C, VCCA = 3.3 V 10 10 9 9 8 8 VCCB = 1.8 V 7 7 VCCB = 1.8 V 6 t PLH − ns t PHL − ns 6 5 4 VCCB = 2.5 V 5 VCCB = 2.5 V 4 VCCB = 3.
PAGE 12
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS (continued) TYPICAL PROPAGATION DELAY (A to B) vs LOAD CAPACITANCE TA = 25°C, VCCA = 5 V 10 10 9 9 8 8 7 7 VCCB = 1.8 V VCCB = 1.8 V t PLH − ns t PHL − ns 6 5 4 VCCB = 2.5 V 3 6 5 VCCB = 2.5 V 4 VCCB = 3.
PAGE 13
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 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 14
SN74LVC1T45-EP SCES768 – NOVEMBER 2008........................................................................................................................................................................................... www.ti.com APPLICATION INFORMATION Figure 2 shows an example of the SN74LVC1T45 being used in a unidirectional logic level-shifting application. VCC1 VCC1 VCC2 1 6 2 5 3 4 SYSTEM-1 VCC2 SYSTEM-2 PIN NAME FUNCTION 1 VCCA VCC1 SYSTEM-1 supply voltage (1.65 V to 5.
PAGE 15
SN74LVC1T45-EP www.ti.com........................................................................................................................................................................................... SCES768 – NOVEMBER 2008 APPLICATION INFORMATION Figure 3 shows the SN74LVC1T45 being used in a bidirectional logic level-shifting application.
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.
PAGE 17
PACKAGE OPTION ADDENDUM www.ti.
PAGE 18
PACKAGE MATERIALS INFORMATION www.ti.com 6-Apr-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN74LVC1T45MDCKREP Package Package Pins Type Drawing SC70 DCK 6 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 3000 180.0 8.4 Pack Materials-Page 1 2.25 B0 (mm) K0 (mm) P1 (mm) 2.4 1.22 4.0 W Pin1 (mm) Quadrant 8.
PAGE 19
PACKAGE MATERIALS INFORMATION www.ti.com 6-Apr-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVC1T45MDCKREP SC70 DCK 6 3000 202.0 201.0 28.
PAGE 20
PAGE 21
PAGE 22
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.