SN74LV157A中文资料四路 2 线路到 1 线路数据选择器/多路复用器数据手册TI规格书

描述 Description

The ’V157A devices are quadruple 2-line to 1-line data selectors/multiplexers designed for 2-V to 5.5-V VCC operation. These devices contain inverters and drivers to supply full data selection to the four output gates. A separate strobe (G)\\ input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The ’LV157A devices present true data.These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

特性 Features

• 2-V to 5.5-V VCC Operation
• Max tpd of 7.5 ns at 5 V
• Typical VOLP (Output Ground Bounce) CC, TA = 25°C
• Typical VOHV (Output VOH Undershoot) >2.3 V at VCC, TA = 25°C
• Ioff Supports Partial-Power-Down-Mode Operation
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
• 2000-V Human-Body Model (A114-A)
• 200-V Machine Model (A115-A)
• 1000-V Charged-Device Model (C101)