Datasheet

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FEATURES

DESCRIPTION/ORDERING INFORMATION

DB, DW, OR PW PACKAGE

(TOP VIEW)

(5 V) V

CCA

DIR

GND

CCB

(3.3 V)

CCB

(3.3 V)

GND

SN74LVC4245A

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

WITH 3-STATE OUTPUTS

SCAS375H – MARCH 1994 – REVISED MARCH 2005

• Bidirectional Voltage Translator

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

• Control Inputs V

Levels Are Referenced

to V

CCA

Voltage

• 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)

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.

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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 control circuitry (DIR, OE) is powered by V

CCA

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

Tube of 25 SN74LVC4245ADW

SOIC – DW LVC4245A

Reel of 2000 SN74LVC4245ADWR

SSOP – DB Reel of 2000 SN74LVC4245ADBR LJ245A

–40 ° C to 85 ° C

Tube of 60 SN74LVC4245APW

TSSOP – PW Reel of 2000 SN74LVC4245APWR LJ245A

Reel of 250 SN74LVC4245APWT

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

www.ti.com/sc/package.

FUNCTION TABLE

INPUTS

OPERATION

OE DIR

L L B data to A bus

L H A data to B bus

H X Isolation

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 (18 pages)

PAGE 1
SN74LVC4245A OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS375H – MARCH 1994 – REVISED MARCH 2005 FEATURES • • • • • DB, DW, OR PW PACKAGE (TOP VIEW) Bidirectional Voltage Translator 5.5 V on A Port and 2.7 V to 3.
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SN74LVC4245A OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS375H – MARCH 1994 – REVISED MARCH 2005 LOGIC DIAGRAM (POSITIVE LOGIC) 2 DIR 22 OE A1 3 21 B1 To Seven Other Channels Absolute Maximum Ratings (1) over operating free-air temperature range for VCCA = 4.5 V to 5.5 V (unless otherwise noted) MIN VCCA Supply voltage range MAX –0.5 6.5 A port (2) –0.5 VCCA + 0.5 Control inputs –0.5 6 –0.5 VCCA + 0.
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SN74LVC4245A OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com Absolute Maximum Ratings SCAS375H – MARCH 1994 – REVISED MARCH 2005 (1) over operating free-air temperature range for VCCB = 2.7 V to 3.6 V (unless otherwise noted) VCCB Supply voltage range VI Input voltage range MIN MAX –0.5 4.6 UNIT V B port (2) –0.5 VCCB + 0.5 V port (2) –0.5 VCCB + 0.
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SN74LVC4245A OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS375H – MARCH 1994 – REVISED MARCH 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 OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS375H – MARCH 1994 – REVISED MARCH 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 OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS375H – MARCH 1994 – REVISED MARCH 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.
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SN74LVC4245A OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER WITH 3-STATE OUTPUTS www.ti.com SCAS375H – MARCH 1994 – REVISED MARCH 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 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Orderable Device Status (1) SN74LVC4245APWTG4 ACTIVE Package Type Package Pins Package Drawing Qty TSSOP PW 24 250 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Top-Side Markings (3) CU NIPDAU Level-1-260C-UNLIM (4) -40 to 85 LJ245A (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 11-Oct-2012 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 SN74LVC4245ADBR SSOP DB 24 2000 330.0 16.4 8.2 8.8 2.5 12.0 16.0 Q1 SN74LVC4245ADWR SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.0 Q1 SN74LVC4245ADWRG4 SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 11-Oct-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVC4245ADBR SN74LVC4245ADWR SSOP DB 24 2000 367.0 367.0 38.0 SOIC DW 24 2000 367.0 367.0 45.0 SN74LVC4245ADWRG4 SOIC DW 24 2000 367.0 367.0 45.0 SN74LVC4245APWR TSSOP PW 24 2000 367.0 367.0 38.0 SN74LVC4245APWT TSSOP PW 24 250 367.0 367.0 38.
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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.