SN74ACT1073 16-Bit Bus Termination Networks With Bus Hold Function |

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16-Bit Bus Termination Networks With Bus Hold Function

16-Bit Bus Termination Networks With Bus Hold Function - SN74ACT1073


This device is designed to terminate bus lines in CMOS systems. The integrated low-impedance diodes clamp the voltage of undershoots and overshoots caused by line reflections and ensure signal integrity. The device also contains a bus-hold function that consists of a CMOS-buffer stage with a high-resistance feedback path between its output and its input. The SN74ACT1073 prevents bus lines from floating without using pullup or pulldown resistors.

The high-impedance inputs of these internal buffers are connected to the input terminals of the device. The feedback path on each internal buffer stage keeps a bus line tied to the bus holder at the last valid logic state generated by an active driver before the bus switches to the high-impedance state.


  • Designed to Ensure Defined Voltage Levels on Floating Bus Lines in CMOS Systems
  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Reduces Undershoot and Overshoot Caused By Line Reflections
  • Repetitive Peak Forward Current ...IFRM = 100 mA
  • Inputs Are TTL-Voltage Compatible
  • Low Power Consumption (Like CMOS)
  • Center-Pin VCC and GND Configuration Minimizes High-Speed Switching Noise
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)


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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) Operating temperature range (C) Package Group
SN74ACT1073 Order now ACT     4.5     5.5     16     5     90     0.04     0     -40 to 85     SOIC | 20
SO | 20