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.
电源电压DC 2.70V min
电路数 8
通道数 8
位数 8
电压波节 3.30 V, 2.70 V
输出电流驱动 -500 µA
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 2.7V ~ 3.6V
电源电压Max 3.6 V
电源电压Min 2.7 V
安装方式 Surface Mount
引脚数 20
封装 SOIC-20
长度 12.8 mm
宽度 7.52 mm
高度 2.35 mm
封装 SOIC-20
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/06/15
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74LVT245BDWR TI 德州仪器 | 当前型号 | 当前型号 |
SN74LVT245BDW 德州仪器 | 完全替代 | SN74LVT245BDWR和SN74LVT245BDW的区别 |
74LVT245WM 飞兆/仙童 | 完全替代 | SN74LVT245BDWR和74LVT245WM的区别 |
SN74LVT245BDWG4 德州仪器 | 完全替代 | SN74LVT245BDWR和SN74LVT245BDWG4的区别 |