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說明

This dual-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track V_CCA. V_CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V_CCB. V_CCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC2T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. The device transmits data from the A bus to the B bus when the B-port outputs are activated and from the B bus to the A bus when the A-port outputs are activated.

特性

• Qualified for Automotive Applications
• Control Inputs V_IH/V_IL Levels Are
  Referenced to V_CCA Voltage
• Fully Configurable Dual-Rail Design Allows Each Port to
  Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
• I/Os Are 4.6-V Tolerant
• I_off Supports Partial-Power-Down Mode Operation
• Max Data Rates
  • 500 Mbps (1.8-V to 3.3-V Translation)
  • 320 Mbps (<1.8-V to 3.3-V Translation)
  • 320 Mbps (Translate to 2.5 V or 1.8 V)
  • 280 Mbps (Translate to 1.5 V)
  • 240 Mbps (Translate to 1.2 V)
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • 8000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)
  • 1000-V Charged-Device Model (C101)