SN74AVCH1T45是TI公司的一款无产品，SN74AVCH1T45是具有可配置电压转换和 3 态输出的单位双电源总线收发器，本页介绍了SN74AVCH1T45的产品说明、应用、特性等，并给出了与SN74AVCH1T45相关的TI元器件型号供参考。
SN74AVCH1T45 - 具有可配置电压转换和 3 态输出的单位双电源总线收发器 - 无 - 小尺寸逻辑器件 - TI公司（Texas Instruments，德州仪器）
- Available in the Texas Instruments NanoStar and NanoFree Packages
- Control Inputs VIH/VIL Levels Are Referenced to VCCA 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
- Ioff Supports Partial-Power-Down Mode Operation
- Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
- Typical Max 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)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
NanoStar Is a trademark of Texas InstrumentsNanoFree Is a trademark of Texas Instruments
DESCRIPTION/ORDERING INFORMATION
This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB 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 SN74AVCH1T45 is designed 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.
The SN74AVCH1T45 is designed so that the DIR input is powered by VCCA.
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 undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
NanoFree™ package technology is a major breakthrough in IC packaging concepts, using the die as the package.
