MDIO SMbus I2C IC Chip 8 Bits TXS0108ENMER Texas Instruments

Features for the TXS0108E

• No direction-control signal needed
• Maximum data rates
  • 110 Mbps (push pull)
  • 1.2 Mbps (open drain)
• 1.4 V to 3.6 V on A port and 1.65 V to 5.5 V on B port (VCCA ≤ VCCB)
• No power-supply sequencing required – either VCCA or VCCB can be ramped first
• Latch-up performance exceeds 100 mA per
  JESD 78, Class II
• ESD protection exceeds JESD 22 (A Port)
  • 2000-V human body model (A114-B)
  • 150-V machine model (A115-A)
  • 1000-V charged-device model (C101)
• IEC 61000-4-2 ESD (B port)
  • ±8 kV contact discharge
  • ±6 kV Air-gap discharge

Description for the TXS0108E

This device is an 8-bit non-inverting level translator that uses two separateconfigurable power-supply rails. The A port tracks the VCCA pin supplyvoltage. The VCCA pin accepts any supply voltage between1.4 V and 3.6 V. The B port tracksthe VCCB pin supply voltage. The VCCB pin accepts anysupply voltage between 1.65 V and 5.5 V. Two input supply pins allows for low Voltage bidirectionaltranslation between any of the 1.5 V, 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(Hi-Z) state.

To ensure the Hi-Z state during power-up or power-down periods, tie OE to GND through apull-down resistor. The minimum value of the resistor is determined by the current-sourcingcapability of the driver.