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TXB0304RUTR Datasheet(PDF) 1 Page - Texas Instruments |
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TXB0304RUTR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 14 page RSV PACKAGE (TOP VIEW) TXB0304 TXBN0304 A1 A2 A3 A4 B1 B2 B3 B4 A1 A2 A3 A4 B1 B2 B3 B4 A1 A2 A3 A4 B1 B2 B3 B4 A1 A2 A3 A4 B1 B2 B3 B4 RUT PACKAGE (TOP VIEW) TXB0304 TXBN0304 TXB0304 www.ti.com SCES831C – SEPTEMBER 2011 – REVISED MAY 2012 4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTOMATIC DIRECTION SENSING Check for Samples: TXB0304 1 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 • VCC Isolation Feature – If Either VCC Input Is at designed to track VCCA. VCCA 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 VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage bidirectional • OE Input Circuit Referenced to VCCA translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V • Low Power Consumption, 5- μA Max (ICCA or and 3.3-V voltage nodes. For the TXB0304, when the ICCB) output-enable (OE) input is low, all outputs are placed • Ioff 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 VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff – 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 k Ω. C. 20 k Ω 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. 1 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. Copyright © 2011–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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