CY74FCT573T中文资料具有三态输出的八路透明 D 型锁存器数据手册TI规格书

描述 Description

The \\x92FCT573T devices consist of eight latches with 3-state outputs for bus-organized applications. When the latch-enable (LE) input is high, the flip-flops appear transparent to the data. Data that meets the required setup times are latched when LE transitions from high to low. Data appears on the bus when the output-enable (OE\\) input is low. When OE\\ is high, the bus output is in the high-impedance state. In this mode, data can be entered into the latches. The \\x92FCT573T devices are identical to the \\x92FCT373T devices, except for the flow-through pinout of the \\x92FCT573T, which simplifies board design. These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

特性 Features

• Function and Pinout Compatible With FCT and F Logic
• Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics
• ESD Protection Exceeds JESD 22
• 200-V Machine Model (A115-A)
• Matched Rise and Fall Times
• 3-State Outputs
• 32-mA Output Sink Current
• CY74FCT573T
• 32-mA Output Source Current