- 制造厂商：TI
- 产品类别：逻辑和电压转换
- 技术类目：电压转换器和电平转换器 - 方向控制型电压转换器
- 功能描述：具有可配置电压转换和 3 态输出的双位双电源总线收发器
- 点击这里打开及下载SN74AVCH2T45的技术文档资料
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This 2-bit non-inverting bus transceiver uses two separate configurable power-supply rails. The A ports are designed to track VCCA and accepts any supply voltage from 1.2 V to 3.6 V. The B ports are designed to track VCCB and accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation and level-shifting between any of the 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V voltage nodes.
The SN74AVCH2T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR pin) 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. The SN74AVCH2T45 features active bus-hold circuitry, which holds unused or un-driven inputs at a valid logic state. TI does not recommend using pull-up or pull-down resistors with the bus-hold circuitry.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature ensures that if either VCC input is at GND, then both outputs are in the high-impedance state. The bus-hold circuitry on the powered-up side always stays active.
Active bus-hold circuitry holds unused or un-driven inputs at a valid logic state. NanoFree package technology is a major breakthrough in IC packaging concepts, using the die as the package.
- Available in the Texas Instruments NanoFree Package
- VCC Isolation
- 2-Rail Design
- I/Os are 4.6 V Tolerant
- Partial Power-Down-Mode Operation
- Bus Hold on Data Inputs
- Maximum Data Rates
- 500 Mbps (1.8 V to 3.3 V)
- 320 Mbps (< 1.8 V to 3.3 V)
- 320 Mbps (Level-Shifting to 2.5 V or 1.8 V)
- 280 Mbps (Level-Shifting to 1.5 V)
- 240 Mbps (Level-Shifting to 1.2 V)
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD 22
- Technology Family
- AVC
- Applications
- GPIO, I2S
- Bits (#)
- 2
- High input voltage (Min) (Vih)
- 0.8
- 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
- Catalog
SN74AVCH2T45的完整型号有：SN74AVCH2T45DCTR、SN74AVCH2T45DCTT、SN74AVCH2T45DCUR、SN74AVCH2T45DCURG4、SN74AVCH2T45DCUT、SN74AVCH2T45YZPR，以下是这些产品的关键参数及官网采购报价：
SN74AVCH2T45DCTR，工作温度：-40 to 85，封装：SM8 (DCT)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AVCH2T45DCTR的批量USD价格：.37（1000+）
SN74AVCH2T45DCTT，工作温度：-40 to 85，封装：SM8 (DCT)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AVCH2T45DCTT的批量USD价格：.444（1000+）
SN74AVCH2T45DCUR，工作温度：-40 to 85，封装：VSSOP (DCU)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AVCH2T45DCUR的批量USD价格：.37（1000+）
SN74AVCH2T45DCURG4，工作温度：-40 to 85，封装：VSSOP (DCU)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74AVCH2T45DCURG4的批量USD价格：.426（1000+）
SN74AVCH2T45DCUT，工作温度：-40 to 85，封装：VSSOP (DCU)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网SN74AVCH2T45DCUT的批量USD价格：.444（1000+）
SN74AVCH2T45YZPR，工作温度：-40 to 85，封装：DSBGA (YZP)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网SN74AVCH2T45YZPR的批量USD价格：.4（1000+）
5-8-LOGIC-EVM — 支持 5 至 8 引脚 DCK、DCT、DCU、DRL 和 DBV 封装的通用逻辑 EVM
灵活的 EVM 设计用于支持具有 5 至 8 引脚数且采用 DCK、DCT、DCU、DRL 或 DBV 封装的任何器件。AVCLVCDIRCNTRL-EVM — 适用于方向控制双向转换器件、支持 AVC 和 LVC 的通用 EVM
该通用 EVM 旨在支持 1、2、4 和 8 通道 LVC 和 AVC 方向控制转换器件。它还以相同数量的通道支持总线保持和汽车 Q1 器件。AVC 是低电压转换器件，具有 12mA 的较低驱动强度。LVC 是 1.65 至 5.5V 的较高电压转换器件，具有 32mA 的较高驱动强度。
