SN74AHC595 8-Bit Shift Registers With 3-State Output Registers |

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8-Bit Shift Registers With 3-State Output Registers



The SN74AHC595 device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift and storage registers. The shift register has a direct overriding clear (SRCLR) input, a serial (SER) input, and a serial output for cascading. When the output-enable (OE) input is high, all outputs except QH′ are in the high-impedance state.


  • Operating Range: 2-V to 5.5-V VCC
  • 8-Bit Serial-In, Parallel-Out Shift
  • 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)


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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) 3-state output Rating Operating temperature range (C)
SN74AHC595 Order now AHC     2     5.5     3.3
110     0.04     20
50     -50     Yes     Catalog     -40 to 125    
SN74AHC595-Q1 Order now AHC     2     5.5     3.3
110     0.04     20
50     -50     Yes     Automotive     -40 to 125