具有三态输出的3.3V ABT八路总线收发器 3.3-V ABT OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
This octal bus transceiver is designed specifically for low-voltage 3.3-V VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.
The SN74LVT245B 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 output-enable OE\ input can be used to disable the device so the buses are effectively isolated.
To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
型号 | 品牌 | 下载 |
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SN74LVT245BRGYR | TI 德州仪器 | 下载 |
SN74CB3T3383DW | TI 德州仪器 | 下载 |
SN74CBT16212ADLRG4 | TI 德州仪器 | 下载 |
SN74CB3T3383DWR | TI 德州仪器 | 下载 |
SN74CBTLV3383PW | TI 德州仪器 | 下载 |
SN74CBT16212AZQLR | TI 德州仪器 | 下载 |
SN74CBT3383DBQR | TI 德州仪器 | 下载 |
SN74CB3T3383PW | TI 德州仪器 | 下载 |
SN74CBTLV3383PWE4 | TI 德州仪器 | 下载 |
SN74CBT3383DBR | TI 德州仪器 | 下载 |
SN74CB3T3383PWR | TI 德州仪器 | 下载 |