八路缓冲器/驱动器，具有三态输出 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS
This octal buffer/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 SN74AHC244 is organized as two 4-bit buffers/line drivers with separate output-enable OE inputs. When OE is low, the device passes 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.
电源电压DC 2.00V ~ 5.50V
输出接口数 8
通道数 8
位数 8
传送延迟时间 8.50 ns
电压波节 5.00 V, 3.30 V
逻辑门个数 8
输出电流驱动 -1.00 mA
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 2V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 2 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℃ ~ 125℃ TA
产品生命周期 Active
包装方式 Cut Tape CT
RoHS标准 RoHS Compliant
含铅标准 Contains Lead
| 型号/品牌 | 代替类型 | 替代型号对比 |
|---|---|---|
SN74AHC244QDWRQ1 TI 德州仪器 | 当前型号 | 当前型号 |
SN74AHC244QDWRG4Q1 德州仪器 | 完全替代 | SN74AHC244QDWRQ1和SN74AHC244QDWRG4Q1的区别 |
SN74AHC244PWR 德州仪器 | 类似代替 | SN74AHC244QDWRQ1和SN74AHC244PWR的区别 |
SN74ABT244ADW 德州仪器 | 类似代替 | SN74AHC244QDWRQ1和SN74ABT244ADW的区别 |