The SN74AVC8T245-Q1 is an 8-bit noninverting bus transceiver that uses two separate configurable power-supply rails. The SN74AVC8T245-Q1 operation is optimimal with V_CCA and V_CCB set at
1.4 V to 3.6 V. It is operational with V_CCA and V_CCB as low as 1.2 V. 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 SN74AVC8T245 design enables 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. One can use the output-enable (OE) input to disable the outputs so the buses are effectively isolated.

In the SN74AVC8T245 design, V_CCA supplies the control pins (DIR and OE).

This device specification covers partial-power-down applications using I_off. The I_off circuitry disables the outputs when the device is powered down. This inhibits current backflow into the device which prevents damage to the device.

The V_CC isolation feature ensures that if either V_CC input is at GND, both ports are in the high-impedance state.

To ensure the high-impedance state during power up or power down, tie OE to V_CC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

• Qualified for Automotive Applications
• AEC Q100 Test Guidance With the Following Results:
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C3B
• Control Inputs VIH and VIL Levels Are Referenced to VCCA Voltage
• VCC Isolation Feature – If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State
• Ioff Supports Partial Power-Down-Mode Operation
• Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.4-V to 3.6-V Power-Supply Range
• I/Os Are 4.6-V Tolerant
• Maximum Data Rates
  • 170 Mbps (VCCA < 1.8 V or VCCB < 1.8 V)
  • 320 Mbps (VCCA ≥ 1.8 V and VCCB ≥ 1.8 V)
• Latch-Up Performance Exceeds 100 mA per JESD 78, Class II

• Technology Family
• AVC
• Applications
• RGMII
• Bits (#)
• 8
• High input voltage (Min) (Vih)
• 0.78
• High input voltage (Max) (Vih)
• 3.6
• Vout (Min) (V)
• 1.2
• Vout (Max) (V)
• 3.6
• IOH (Max) (mA)
• -12
• IOL (Max) (mA)
• 12
• Rating
• Automotive

SN74AVC8T245-Q1的完整型号有：CAVC8T245QRHLRQ1、SN74AVC8T245QPWRQ1，以下是这些产品的关键参数及官网采购报价：

CAVC8T245QRHLRQ1，工作温度：-40 to 125，封装：VQFN (RHL)-24，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网CAVC8T245QRHLRQ1的批量USD价格：.611（1000+）

SN74AVC8T245QPWRQ1，工作温度：-40 to 125，封装：TSSOP (PW)-24，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网SN74AVC8T245QPWRQ1的批量USD价格：.586（1000+）

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