Texas Instruments TXS0104EPWRG4

Overview

TXS0104EPWRG4 from Texas Instruments is a 4-bit bidirectional voltage-level translator IC designed for open-drain and push-pull logic interfaces between mismatched voltage domains. It supports 1.65–3.6 V on the A port and 2.3–5.5 V on the B port (VCCA ≤ VCCB), delivers up to 24 Mbps in push-pull mode, requires no direction-control signal, and features OE-controlled 3-state outputs - enabling use in mobile SoC I²C, GPIO, and UART level-shifting applications.

For engineers reviewing the TXS0104EPWRG4 datasheet, TXS0104EPWRG4 pinout, TXS0104EPWRG4 application, or TXS0104EPWRG4 equivalent, this page provides verified package mapping (TSSOP-14), confirmed bidirectional timing specs, validated ESD ratings per JESD22 and IEC 61000-4-2, and real-world translation use cases across handheld and embedded systems.

Technical Context

The TXS0104EPWRG4 uses passive MOSFET-based translation architecture with no internal level-shifting buffers or active drivers - enabling automatic direction sensing and eliminating external control lines. Its dual-rail design isolates A-port signals referenced to VCCA and B-port signals referenced to VCCB, supporting asymmetric voltage translation (e.g., 1.8 V ↔ 3.3 V or 2.5 V ↔ 5 V) without sequencing constraints.

OE input is powered by VCCA and controls high-impedance state on all eight I/Os (A1–A4, B1–B4); during power-up/down, OE must be pulled low via external resistor to ensure defined output states. The device exhibits channel-to-channel skew ≤1 ns and supports both fast push-pull (≤41 ns pulse width) and slower open-drain (≥500 ns pulse width) signaling modes.

Key Specifications

Pinout & Package

Packaged in 14-pin TSSOP (PW), the TXS0104EPWRG4 measures 5 mm × 6.4 mm and features exposed thermal pad grounding for improved thermal performance in compact layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage-level translation applications.

Compared with TXB0104PWR and SN74AVC4T245PWR, the TXS0104EPWRG4 uniquely supports automatic bidirectional translation with open-drain compatibility and 5-V B-port tolerance - making it the only option among the three for robust I²C/SMBus bridging across 1.8 V ↔ 5 V domains without external components.

Availability

TXS0104EPWRG4 is available at Aetrix Electronics and suitable for smartphone, tablet, and industrial sensor hub designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TXS0104EPWRG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in interface and level-shifting solutions.

The TXS0104EPWRG4 belongs to TI's voltage translation portfolio, engineered specifically for space-constrained, low-power mobile and portable electronics where automatic bidirectionality, wide voltage range, and high ESD robustness are mandatory.

FAQ

What is the recommended power-supply sequencing for TXS0104EPWRG4?

TXS0104EPWRG4 requires no specific power-supply sequencing: VCCA and VCCB may be ramped in any order. This eliminates boot-order dependencies in multi-rail systems. However, OE must be held low (via pull-down resistor to GND) during power-up to prevent undefined I/O states. The minimum pull-down resistor value depends on the driver's current-sourcing capability - typically 10 kΩ suffices for most microcontroller outputs.

Can TXS0104EPWRG4 translate between 1.8 V and 5 V logic levels?

Yes, TXS0104EPWRG4 supports 1.8 V on the A port (VCCA = 1.8 V) and 5 V on the B port (VCCB = 5 V), provided VCCA ≤ VCCB. It maintains valid logic thresholds and output drive strength across this full range, delivering VOHB ≥ 4.0 V (at VCCB = 5 V) and VOLB ≤ 0.4 V under 1-mA load - meeting TTL and CMOS input requirements on the 5-V side.

Does TXS0104EPWRG4 support I²C bus translation?

Yes, TXS0104EPWRG4 is explicitly designed for open-drain applications including I²C. It supports standard (100 kHz), Fast-mode (400 kHz), and Fast-mode Plus (1 MHz) speeds with 2 Mbps maximum open-drain data rate. Its B-port ±15-kV HBM and ±8-kV IEC 61000-4-2 ESD ratings provide system-level robustness without external protection components.

What is the function of the OE pin on TXS0104EPWRG4?

The OE (Output Enable) pin on TXS0104EPWRG4 is a VCCA-referenced active-high input that places all eight I/Os (A1–A4, B1–B4) into high-impedance state when driven low. This enables bus arbitration, hot-plug isolation, and power-gating control. OE must be pulled low during power-up/down using an external resistor to ensure safe default behavior - TI recommends a 10-kΩ pull-down for most applications.

How does TXS0104EPWRG4 differ from TXB0104 in practical design?

TXS0104EPWRG4 uses passive MOSFET translation with automatic direction sensing and no DIR pin, while TXB0104 employs active CMOS drivers requiring explicit direction control. TXS0104EPWRG4 supports open-drain I²C natively and tolerates 5-V B-port signals; TXB0104 does not. TXS0104EPWRG4 draws 14.4 µA vs. TXB0104's 90 µA typical ICC - making it preferable for ultra-low-power portable designs where simplicity and efficiency are prioritized over drive strength.