Texas Instruments SN74AHC157/SN74AHC157-Q1 2-to-1 Data Selector/Mux

Texas Instruments SN74AHC157/SN74AHC157-Q1 Quad 2-to-1 Line Data Selectors/Multiplexers are designed for 2V to 5.5V VCC operation. The SN74AHC157/SN74AHC157-Q1 devices feature a common strobe (G) input. When the strobe is high, all outputs are low. When the strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The devices provide true data. The Texas Instruments SN74AHC157-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Operating range 2V to 5.5V
  • The device contains four 2:1 multiplexers
  • Low delay of 12ns (VCC = 5V, CL = 50pF)
  • Latch-up performance exceeds 250mA per JESD 17
  • ESD protection exceeds JESD 22
    • 2000V human-body model (A114-A)
    • 200V machine model (A115-A
    • 1000V charged-device model (C101)

Applications

  • Memory device selection with shared data bus
  • Route data
  • Reduce the required number of outputs for chip-select applications

Logic Diagram (Positive Logic)

Block Diagram - Texas Instruments SN74AHC157/SN74AHC157-Q1 2-to-1 Data Selector/Mux
發佈日期: 2024-05-01 | 更新日期: 2025-06-06