具有三态输出的八路总线收发器 20-SOIC -40 to 85
These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit 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.
When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, 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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN54ABTH245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABTH245 is characterized for operation from -40°C to 85°C.
电源电压DC 4.50V ~ 5.50V
输出接口数 8
电路数 8
通道数 8
位数 8
传送延迟时间 3.90 ns
电压波节 5.00 V
静态电流 22 mA
输出电流驱动 -500 µA
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 4.5V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 4.5 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℃ TA
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 |
---|---|---|
SN74ABTH245DWR TI 德州仪器 | 当前型号 | 当前型号 |
SN74ABT245BDW 德州仪器 | 完全替代 | SN74ABTH245DWR和SN74ABT245BDW的区别 |
SN74ABT245BDWR 德州仪器 | 完全替代 | SN74ABTH245DWR和SN74ABT245BDWR的区别 |