Voltage Level Translator 8-Pin VSSOP T/R

This two-bit non-inverting translator is a bidirectional voltage-level translator and can be used to establish digital switching compatibility between mixed-voltage systems. It uses two separate configurable power-supply rails, with the A ports supporting operating voltages from 1.65 V to 3.6 V while it tracks the VCCA supply, and the B ports supporting operating voltages from 2.3 V to 5.5 V while it tracks the VCCB supply. This allows the support of both lower and higher logic signal levels while providing bidirectional translation capabilities between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. When the output-enable (OE) input is low, all I/Os are placed in the high-impedance state, which significantly reduces the power-supply quiescent current consumption. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. 

No Direction-Control Signal Needed

Max Data Rates

• 24 Mbps (Push Pull)
• 2 Mbps (Open Drain)

Available in the Texas Instruments NanoStar
Package

1.65 V to 3.6 V on A port and 2.3 V to 5.5 V
on B port (V_{CCA  CCB})

V_CC Isolation Feature: If Either V_CC
Input Is at GND, Both Ports Are in the High-Impedance State

No Power-Supply Sequencing Required: Either V_CCA or
V_CCB Can Be Ramped First

I_off Supports Partial-Power-Down Mode Operation

Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

ESD Protection Exceeds JESD 22

• A Port
  • 2500-V Human-Body Model (A114-B)
  • 250-V Machine Model (A115-A)
  • 1500-V Charged-Device Model (C101)
• B Port
  • 8-kV Human-Body Model (A114-B)
  • 250-V Machine Model (A115-A)
  • 1500-V Charged-Device Model (C101)

APPLICATIONS

• I²C/SMBus
• UART
• GPIO