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LXS0104ZBEX

DIOLXS0104ZBEX

Diodes Incorporated
Voltage Level Translator Bidirectional 1 Circuit 4 Channel 24Mbps 14-TQFN (3.5x3.5)
Active2,601 in stock

Overview

The LXS0104ZBEX is a 4-channel, bidirectional voltage level translator designed for multi-voltage interfacing without a direction-control signal. It supports a wide voltage range from 1.65V to 3.6V on the A-port and 2.3V to 5.5V on the B-port, making it ideal for bridging low-voltage processors with higher-voltage peripherals. Integrated 10 kOhm pull-up resistors allow it to support both push-pull and open-drain applications like I2C or MDIO.

Why Choose This Part

The device eliminates the need for a direction-control pin, which simplifies PCB routing and reduces GPIO overhead on the host controller. It features integrated 10 kOhm pull-up resistors to reduce component count and supports high-speed push-pull data rates up to 24 Mbps. Additionally, its power-off protection feature ensures that signals are high-impedance when either VCC is at 0V, preventing backflow current.

Applications

I2C Level Shifting
Translating between 1.8V microcontrollers and 3.3V or 5V I2C sensors while supporting the open-drain nature of the bus.
Mixed-Voltage SPI/UART
Bridging high-speed push-pull digital interfaces up to 24 Mbps between different logic domains.
MDIO Bus Interfacing
Utilizing the bidirectional capability for Management Data Input/Output protocols in networking hardware.
GPIO Expansion
Providing level-shifted general purpose I/O for systems with mismatched VCC rails.

Key Specifications

Data Rate 24Mbps
Output Type Open Drain, Push-Pull, Tri-State
Channel Type Bidirectional
Mounting Type Surface Mount
Package / Case 14-VFQFN Exposed Pad
Voltage - VCCA 1.65 V ~ 3.6 V
Voltage - VCCB 2.3 V ~ 5.5 V
Translator Type Voltage Level
Number of Circuits 1
Channels per Circuit 4
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 14-TQFN (3.5x3.5)

Getting Started

To implement the LXS0104ZBEX, ensure VCCA is always less than or equal to VCCB and provide adequate decoupling capacitors (0.1uF) near the VCC pins. The 14-TQFN package requires a standard SMT reflow process and a landing pattern that accounts for the exposed thermal pad. For prototyping, look for TQFN-14 to DIP adapter boards or evaluation modules from Diodes Incorporated that feature the LXS0104 series.

LXS0104 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Output Type Package Stock
LXS0104ZBEX (this part) Open Drain, Push-P.. VFQFN-14 2,601
LXS0104ZMAEX Open Drain, Push-P.. UFQFN-12 5,152
Also available as: LXS0104LEX

Also Consider

TXB0104 TITexas Instruments - Best for push-pull only applications where higher drive strength and better signal integrity are required over open-drain support.