SN54AC244-SP数据手册TI中文资料规格书

描述 Description

These octal buffers and line 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 ’AC244 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE)\\ inputs. When OE\\ is low, the device passes noninverted 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.

特性 Features

• 2-V to 6-V VCC Operation
• Inputs Accept Voltages to 6 V
• Max tpd of 7.5 ns at 5 V