八路缓冲器/驱动器,具有三态输出 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the SN54ABT241, SN74ABT241A, SN54ABT244, and SN74ABT244A, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable OE\ inputs, and complementary OE and OE\ inputs.
The SN54ABT240 and SN74ABT240A are organized as two 4-bit buffers/line drivers with separate OE\ inputs. When OE\ is low, the devices pass inverted data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.
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.
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.
电源电压DC 4.50V ~ 5.50V
输出接口数 8
电路数 2
通道数 8
针脚数 20
位数 8
传送延迟时间 4.80 ns
电压波节 5.00 V
静态电流 24.0 mA
输出电流驱动 -500 µA
输入数 4
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 Through Hole
引脚数 20
封装 DIP-20
封装 DIP-20
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/06/15
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74ABT240AN TI 德州仪器 | 当前型号 | 当前型号 |
SN74ABT240ANE4 德州仪器 | 完全替代 | SN74ABT240AN和SN74ABT240ANE4的区别 |
5962-9318801MRA 德州仪器 | 功能相似 | SN74ABT240AN和5962-9318801MRA的区别 |
SN74ABT240N 德州仪器 | 功能相似 | SN74ABT240AN和SN74ABT240N的区别 |