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SN74AHC240NSR_TI(德州仪器)中文资料_英文资料_价格_PDF手册

2024/5/31 10:49:02

218

SN74AHC240NSR

具有三态输出的 8 通道、2V 至 5.5V 反相器

 

 


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· Operating Range 2-V to 5.5-V VCC

· Latch-Up Performance Exceeds 250 mA Per JESD 17

 

 

                                                      

 

description/ordering information

 

These octal buffers/drivers are designed specifically to improve the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

 

The ’AHC240 devices are 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.