Description:

Due to voltage mismatches, the TXS0104E-Q1 device connects incompatible logic communications between chip and chip. This auto-direction-sensing translator can conveniently be used to bridge the gap without the need for host direction control. Without host intervention, each channel can be used in a mixed manner and can be matched with different output types (open-drain or push-pull) and mixed data flows (transmit or receive). This 4-bit non-inverting translator uses two independent configurable power supply rails. The A and B ports are designed to track VCCA and VCCB, respectively. The VCCB pin accepts any supply voltage between 2.3 V and 5.5 V while the VCCA pin accepts any supply voltage between 1.65 V and 3.6 V, such that VCCA is less than or equal to VCCB. This tracking feature enables low-voltage bidirectional translation between 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. When the output enable (OE) input is low, all outputs are placed in the high-impedance state. The TXS0104E-Q1 device is designed so that the OE input circuit is supplied by VCCA. To be in the high-impedance state during power-up or power-down, the OE pin must be connected to GND through a pulldown resistor; the minimum value of this resistor is determined by the current-sourcing capability of the driver.

Features:

Qualified for automotive applications

The following features in accordance with AEC-Q100:

– Device temperature grade 1: –40°C to +125°C ambient operating temperature range

– Device HBM ESD classification level 2

– Device CDM ESD classification level C6

No direction control signal required

Maximum data rates:

– Maximum 24 Mbps (push-pull)

– 2 Mbps (open-drain)

A port supports voltages from 1.65 V to 3.6 V, and B port supports voltages from 2.3 V to 5.5 V (VCCA ≤ VCCB)

No power-supply sequencing required

— Either VCCA or VCCB can ramp first

Electrostatic discharge (ESD) protection performance exceeds JESD 22 specification requirements: – A port

• 2000-V human body model (A114-B)

• 1000-V charged device model (C101) – B port

• 15-kV human body model (A114-B)

• 1000-V charged device model (C101)

IEC 61000-4-2 ESD (B port)

– ±8-kV contact discharge

– ±10-kV air-gap discharge

Applications:

Automotive infotainment systems, advanced driver assistance systems (ADAS)

Isolation and level translation between the main processor and peripheral modules

I2C or 1-wire voltage level translation