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四路 2 线路到 1 线路数据选择器/多路复用器
Technology Family LV-A
Function Digital Multiplexer
Configuration 2:1
Number of channels (#) 4
Operating temperature range (C) -40 to 85
Rating Catalog
  • 2-V to 5.5-V VCC Operation
  • Max tpd of 7.5 ns at 5 V
  • Typical VOLP (Output Ground Bounce) <0.8 V at VCC, 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)

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.