3.3 V ABT八路缓冲器/驱动器, 3态输出 3.3 V ABT OCTAL BUFFERS / DRIVERS WITH 3 STATE OUTPUTS
These octal buffers and line drivers are 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 LVTH244A devices are organized as two 4-bit line drivers with separate output-enable OE\ inputs. When OE\ is low, the devices pass data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.
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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
These devices are 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 devices when they are 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 ~ 3.60V
输出接口数 8
通道数 8
位数 8
传送延迟时间 3.50 ns
电压波节 3.30 V, 2.70 V
静态电流 5.00 mA
逻辑门个数 8
输出电流驱动 -500 µA
输入数 8
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 2.7V ~ 3.6V
安装方式 Surface Mount
引脚数 20
封装 SOP-20
封装 SOP-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
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74LVTH244ANSR TI 德州仪器 | 当前型号 | 当前型号 |
SN74LVTH244APWR 德州仪器 | 完全替代 | SN74LVTH244ANSR和SN74LVTH244APWR的区别 |
SN74LVTH244APW 德州仪器 | 完全替代 | SN74LVTH244ANSR和SN74LVTH244APW的区别 |
SN74LVTH241NSR 德州仪器 | 完全替代 | SN74LVTH244ANSR和SN74LVTH241NSR的区别 |