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說明

This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails to enable asynchronous communication between B-port inputs and A-port outputs. The A port is designed to track V_CCA while the B port is designed to track V_CCB. Both V_CCA and V_CCB are configurable from 0.9 V to 3.6 V.

The SN74AVC4T234 solution offers the industry's low-power needs in battery-powered portable applications by ensuring both a very low static and dynamic power consumption across the entire V_CC range of 0.9 V to 3.6 V, resulting in an increased battery life. This product also maintains excellent signal integrity.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

特性

• Wide Operating V_CC Range of 0.9 V to 3.6 V
• 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
• Max t_pd of 3.7 ns at 3.3 V
• Balanced propagation delays: t_PLH = t_PHL
• Low Static-Power Consumption, 5-µA Max I_CC
• Input-Disable Feature Allows Floating Input Conditions
• ±3-mA Output Drive at 1.8 V
• 26Ω series resistor on A-side outputs
• I_off Supports Partial Power-Down-Mode Operation
• Input Hysteresis Allows Slow Input Transition and Better Switching Noise Immunity at Input
• Maximum Data Rates
  • 380 Mbps (1.8-V to 3.3-V Translation)
  • 200 Mbps (<1.8-V to 3.3-V Translation)
  • 200 Mbps (Translate to 2.5 V or 1.8 V)
  • 150 Mbps (Translate to 1.5 V)
  • 100 Mbps (Translate to 1.2 V)
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • 2000-V Human-Body Model (A114-A)
  • 500-V Charged-Device Model (C101)