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Texas Instruments SN74AVC16T245 16-Bit Dual-Supply Bus Transceivers

Texas Instruments SN74AVC16T245 16-Bit Dual-Supply Bus Transceivers are noninverting and use two separate configurable power-supply rails. The SN74AVC16T245 is operational with VCCA/VCCB as low as 1.2V and operates at 1.4V to 3.6V. The VCCB accepts any supply voltage from 1.2V to 3.6V, allowing for universal low-voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes. The SN74AVC16T245 is optimized for asynchronous communication between data buses.

The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. To effectively isolate the buses, the output-enable (OE) input can be used to disable the outputs. The device uses the Ioff circuitry for partial-power-down applications, which disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature guarantees that if either VCC input is at GND, both ports are in the high-impedance state.

Features

  • Control inputs VIH/VIL levels are referenced to VCCA voltage
  • VCC Isolation feature - if either VCC input is at GND, both ports are in the high-impedance state
  • Overvoltage-tolerant inputs and outputs allow mixed-voltage-mode data communications
  • Fully configurable dual-rail design allows each port to operate over the full 1.2V to 3.6V power-supply range
  • Ioff Supports partial-power-down mode operation
  • I/Os are 4.6V tolerant
  • Maximum data rates
    • 380Mbps (1.8V to 3.3V Level-shifting)
    • 200Mbps (<1.8V to 3.3V Level-shifting)
    • 200Mbps (Level-shifting to 2.5V or 1.8V)
    • 150Mbps (Level-shifting to 1.5V)
    • 100Mbps (Level-shifting to 1.2V)
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • ESD Protection exceeds JESD 22
    • 8000V Human-body model (A114-A)
    • 200V Machine model (A115-A)
    • 1000V Charged-device model (C101)

Applications

  • Personal electronics
  • Industrial
  • Enterprise
  • Telecom

Logic Diagram

Location Circuit - Texas Instruments SN74AVC16T245 16-Bit Dual-Supply Bus Transceivers
Published: 2018-11-21 | Updated: 2023-07-24