CD74HCT258数据手册集成电路（IC）的信号开关多路复用器解码器规格书PDF

描述 Description

These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G)\\ input is at a high logic level.
To ensure the high-impedance state during power up or power down, G\\ 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

• 4.5-V to 5.5-V VCC Operation
• Wide Operating Temperature Range of –55°C to 125°C
• Balanced Propagation Delays and Transition Times
• Standard Outputs Drive Up To 10 LS-TTL Loads
• Significant Power Reduction Compared to LS-TTL Logic ICs
• Inputs Are TTL-Voltage Compatible