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RSV PACKAGE

(TOP VIEW)

TXB0304 TXBN0304

1 2 3 4

12 11 10 9

GND

CCB

CCA

1 2 3 4

12 11 10 9

GND

CCB

CCA

1 2 3 4

12 11 10 9

/OE

GND

CCB

CCA

1 2 3 4

12 11 10 9

/OE

GND

CCB

CCA

RUT PACKAGE

(TOP VIEW)

TXB0304 TXBN0304

TXB0304

www.ti.com

SCES831D –SEPTEMBER 2011–REVISED OCTOBER 2012

4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTOMATIC DIRECTION

SENSING

Check for Samples: TXB0304

FEATURES

DESCRIPTION

• Fully Symmetric Supply Voltages. 0.9 V to 3.6

This 4-bit non-inverting translator uses two separate

V on A Port and 0.9 V to 3.6 V

configurable power-supply rails. The A port is

• V

Isolation Feature – If Either V

Input Is at

designed to track V

CCA

. V

CCA

accepts any supply

GND, All Outputs Are in the High-Impedance

voltage from 0.9 V to 3.6 V. The B port is designed to

State

track V

CCB

. V

CCB

accepts any supply voltage from 0.9

V to 3.6 V. This allows for low-voltage bidirectional

• OE Input Circuit Referenced to V

CCA

translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V

• Low Power Consumption, 5-μA Max (I

CCA

and 3.3-V voltage nodes. For the TXB0304, when the

CCB

)

output-enable (OE) input is low, all outputs are placed

• I

off

Supports Partial-Power-Down Mode

in the high-impedance state. To ensure the high-

Operation

impedance state during power up or power down, OE

should be tied to GND through a pulldown resistor;

• Latch-Up Performance Exceeds 100 mA Per

the minimum value of the resistor is determined by

JESD 78, Class II

the current-sourcing capability of the driver. The

• ESD Protection Exceeds JESD 22

TXB0304 is designed so that the OE input circuit is

– 8000-V Human-Body Model (A114-B)

supplied by V

CCA

. This device is fully specified for

partial-power-down applications using I

off

. The I

off– 1000-V Charged-Device Model (C101)

circuitry disables the outputs, preventing damaging

current backflow through the device when it is

powered down.

A. Pull up resistors are not required on both sides for Logic I/O.

B. If pull up or pull down resistors are needed, the resistor value must be over 20 kΩ.

C. 20 kΩ is a safe recommended value, if the customer can accept higher Vol or lower Voh, smaller pull up or pull down

resistor is allowed, the draft estimation is Vol = Vccout × 1.5k/(1.5k + Rpu) and Voh = Vccout × Rdw/(1.5k + Rdw).

D. If pull up resistors are needed, please refer to the TXS0104 or contact TI.

E. For detailed information, please refer to application note SCEA043.

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
TXB0304 www.ti.com SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTOMATIC DIRECTION SENSING Check for Samples: TXB0304 FEATURES 1 • • • • • • • Fully Symmetric Supply Voltages. 0.9 V to 3.6 V on A Port and 0.9 V to 3.
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TXB0304 SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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TXB0304 www.ti.com SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VCCA VCCB MIN MAX –0.5 4.6 –0.5 4.6 A port Supply voltage range UNIT V VI Input voltage range –0.5 4.6 B port –0.5 4.6 VO Voltage range applied to any output in the A port high-impedance or power-off state B port –0.5 4.6 -0.5 4.6 VO Voltage range applied to any output in the A port high or low state (2) B port –0.
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TXB0304 SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 www.ti.com ELECTRICAL CHARACTERISTICS PARAMETER TEST CONDITIONS VCCA VOHA IOH = –20 μA 0.9 V to 3.6 V VOLA IOL = 20 μA 0.9 V to 3.6 V IOH = –20 μA VOHB II Ioff OE VI = VCCI or GND A port B port A or B port MIN TYP –40°C to 85°C MAX MIN MAX 0.9 x VCCA 0.2 0.9 V to 3.6 V UNIT V V 0.9 x VCCB 0.9 V to 3.6 V IOL = 20 μA VOLB TA = 25°C VCCB V 0.2 V 0.9 V to 3.6 V 0.9 V to 3.6 V ±1 ±2 VI or VO = 0 to 3.6 V 0V 0 V to 3.
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TXB0304 www.ti.com SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 SWITCHING CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TYP TA = 25°C MAX 0.9-3.6 18.9 30 1.2-3.6 1.2-3.6 7.5 11.5 1.8-3.6 1.8-3.6 3.7 4.8 CL = 30 0.9-3.6 0.9-3.6 19.5 34 B CL = 30 1.2-3.6 1.2-3.6 7.8 11.9 B CL = 30 1.8-3.6 1.8-3.6 3.8 5.2 A B CL = 50 1.2-3.6 1.2-3.6 8 12.3 A B CL = 50 1.8-3.6 1.8-3.6 4 5.4 A B CL = 100 1.2-3.6 1.2-3.6 8.
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TXB0304 SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 www.ti.com PRINCIPLES OF OPERATION Applications The TXB0304 can be used in level-translation applications for interfacing devices or systems operating at different interface voltages with one another. Architecture The TXB0304 architecture (see Figure 1) does not require a direction-control signal to control the direction of data flow from A to B or from B to A.
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TXB0304 www.ti.com SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 IIN VT/1k VT 0 VIN -(VCC – VT)/1k (1) VCC is power supply of TXB0304. (2) VT is the input threshold voltage of TXB0304 (typically it is VCC/2). Figure 2. Typical IIN vs VIN Curve Power Up There is no requirement for the power sequence. During operation, TXB0304 can work at both VCCA ≤ VCCB and VCCA ≥ VCCB , During power-up sequencing, any power supply can be ramped up first.
PAGE 8
TXB0304 SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 www.ti.com PARAMETER MEASUREMENT INFORMATION 2 × VCCO 50 kΩ From Output Under Test CL 15 pF 50 k Open TEST S1 t PZL/t PLZ t PHZ/t PZH 2 × VCCO Open tW VCCI VCCI/2 50 kΩ LOAD CIRCUIT FOR ENABLE/DISABLE TIME MEASUREMENT LOAD CIRCUIT FOR MAX DATA RATE, PULSE DURATION PROPAGATION DELAY OUTPUT RISE AND FALL TIME MEASUREMENT Input S1 From Output Under Test VCCI/2 VCCI 0V t PLH VCCO/2 VCCI/2 VCCI/2 0V VOH 0.
PAGE 9
TXB0304 www.ti.com SCES831D – SEPTEMBER 2011 – REVISED OCTOBER 2012 REVISION HISTORY Changes from Revision B (September 2011) to Revision C • Page Added package pin out diagram notes. ................................................................................................................................ 1 Changes from Revision C (May 2012) to Revision D • Page Added Application Information Section ................................................................................................
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 26-Oct-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TXB0304RSVR UQFN SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) RSV 16 3000 177.8 B0 (mm) K0 (mm) P1 (mm) 12.4 2.0 2.8 0.7 4.0 W Pin1 (mm) Quadrant 12.0 Q1 TXB0304RUTR UQFN RUT 12 3000 180.0 9.5 1.9 2.3 0.75 4.0 8.0 Q1 TXBN0304RSVR UQFN RSV 16 3000 330.0 12.4 2.1 2.9 0.75 4.0 12.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TXB0304RSVR UQFN RSV 16 3000 202.0 201.0 28.0 TXB0304RUTR UQFN RUT 12 3000 180.0 180.0 30.0 TXBN0304RSVR UQFN RSV 16 3000 180.0 180.0 30.0 TXBN0304RSVR UQFN RSV 16 3000 202.0 201.0 28.0 TXBN0304RUTR UQFN RUT 12 3000 202.0 201.0 28.
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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.