八路缓冲器/驱动器,具有三态输出 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
This octal buffer and line driver is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
The SN74AC240 device is organized as two 4-bit buffers/drivers with separate output-enable OE inputs. When OE is low, the device passes inverted 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.
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74AC240QPWRQ1 TI 德州仪器 | 当前型号 | 当前型号 |
SN74AC240QPWRG4Q1 德州仪器 | 完全替代 | SN74AC240QPWRQ1和SN74AC240QPWRG4Q1的区别 |
SN74AC240PWR 德州仪器 | 类似代替 | SN74AC240QPWRQ1和SN74AC240PWR的区别 |
SN74AC240PW 德州仪器 | 类似代替 | SN74AC240QPWRQ1和SN74AC240PW的区别 |