Datasheet

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

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FEATURES

PW PACKAGE

(TOP VIEW)

(5 V) V

CCA

DIR

GND

CCB

(3.3 V)

CCB

(3.3 V)

GND

DESCRIPTION/ORDERING INFORMATION

SN74LVC4245A-EP

OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER

WITH 3-STATE OUTPUTS

SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005

• Controlled Baseline

– One Assembly/Test Site, One Fabrication

Site

• Enhanced Diminishing Manufacturing

Sources (DMS) Support

• Enhanced Product-Change Notification

• Qualification Pedigree

(1)

• Bidirectional Voltage Translator

• 5.5 V on A Port and 2.7 V to 3.6 V on B Port

• Latch-Up Performance Exceeds 250 mA Per

JESD 17

• ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

(1) Component qualification in accordance with JEDEC and

industry standards to ensure reliable operation over an

extended temperature range. This includes, but is not limited

to, Highly Accelerated Stress Test (HAST) or biased 85/85,

temperature cycle, autoclave or unbiased HAST,

electromigration, bond intermetallic life, and mold compound

life. Such qualification testing should not be viewed as

justifying use of this component beyond specified

performance and environmental limits.

This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has V

CCB

, which is set at

3.3 V, and A port has V

CCA

, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and

vice versa.

The SN74LVC4245A 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.

The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin '245 device

without board re-layout. The designer uses the data paths for pins 2–11 and 14–23 of the SN74LVC4245A to

align with the conventional '245 pinout.

ORDERING INFORMATION

PACKAGE

(1)

ORDERABLE PART NUMBER TOP-SIDE MARKING

–40 ° C to 85 ° C TSSOP – PW Reel of 2000 SN74LVC4245AIPWREP C4245AEP

(1) 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 (15 pages)

PAGE 1
SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 FEATURES • • • • • • • • (1) Controlled Baseline – One Assembly/Test Site, One Fabrication Site Enhanced Diminishing Manufacturing Sources (DMS) Support Enhanced Product-Change Notification Qualification Pedigree (1) Bidirectional Voltage Translator 5.5 V on A Port and 2.7 V to 3.
PAGE 2
SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.
PAGE 3
SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 Absolute Maximum Ratings (1) over operating free-air temperature range for VCCA = 4.5 V to 5.5 V (unless otherwise noted) VCCA MIN MAX –0.5 6.5 A port (2) –0.5 VCCA + 0.5 Control inputs –0.5 6 –0.5 VCCA + 0.
PAGE 4
SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 Recommended Operating Conditions (1) for VCCA = 4.5 V to 5.5 V MIN MAX 4.5 5.5 UNIT VCCA Supply voltage VIH High-level input voltage VIL Low-level input voltage 0.
PAGE 5
SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 Electrical Characteristics (1) over recommended operating free-air temperature range for VCCA = 4.5 V to 5.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS VCCA IOH = –100 µA VOH IOH = –24 mA MIN TYP (2) 4.5 V 4.3 5.5 V 5.3 4.5 V 3.7 5.5 V 4.7 VOL IOL = 24 mA UNIT V 4.5 V IOL = 100 µA MAX 0.2 5.5 V 0.2 4.5 V 0.55 5.5 V 0.
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SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 Switching Characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1 and Figure 2) PARAMETER tPHL tPLH tPHL tPLH tPZL tPZH tPZL tPZH tPLZ tPHZ tPLZ tPHZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCA = 5 V ± 0.5 V, VCCB = 2.7 V to 3.6 V UNIT MIN MAX 1 6.3 1 6.7 1 6.
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SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 PARAMETER MEASUREMENT INFORMATION A PORT 2 × VCC 500 Ω From Output Under Test S1 Open GND CL = 50 pF (see Note A) 500 Ω TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC GND 1.5 V 1.5 V LOAD CIRCUIT tw VCC Input 1.5 V 1.5 V 0V VOLTAGE WAVEFORMS PULSE DURATION 1.5 V 1.
PAGE 8
SN74LVC4245A-EP OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS742 – DECEMBER 2003 – REVISED AUGUST 2005 PARAMETER MEASUREMENT INFORMATION B PORT 7V 500 Ω From Output Under Test S1 Open GND CL = 50 pF (see Note A) 500 Ω TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 7V GND LOAD CIRCUIT tw 3V Input 1.5 V 1.5 V 0V VOLTAGE WAVEFORMS PULSE DURATION 1.5 V 1.5 V 0V tPLH tPHL VOH Output 1.5 V 1.5 V 1.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SN74LVC4245AIPWREP TSSOP PW 24 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 16.4 Pack Materials-Page 1 6.95 B0 (mm) K0 (mm) P1 (mm) 8.3 1.6 8.0 W Pin1 (mm) Quadrant 16.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVC4245AIPWREP TSSOP PW 24 2000 367.0 367.0 38.
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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 JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.