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說明

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 V_CCA supply, and the B ports supporting operating voltages from 2.3 V to 5.5 V while it tracks the V_CCB 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.

特性

• No Direction-Control Signal Needed
• Max Data Rates
  • 24 Mbps (Push Pull)
  • 2 Mbps (Open Drain)
• Available in the Texas Instruments NanoFree™ Package
• 1.65 V to 3.6 V on A port and 2.3 V to 5.5 V on
  B port (V_CCA ≤ V_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)
• TYPICAL LEVEL-SHIFTER APPLICATIONS