SCEA097 June   2021 SN74LXC8T245-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Input/Output Architecture
    1. 2.1 Integrated Pull-Down Resistors
    2. 2.2 Input Characteristics
      1. 2.2.1 Schmitt-Trigger Inputs
    3. 2.3 Output Characteristics
  4. 3LXC Features
    1. 3.1 VCC Isolation and VCC Disconnect
  5. 4LXC Applications

2.1 Integrated Pull-Down Resistors

As shown in Figure 2-1, the LXC family of translators have integrated pull-down resistors to help avoid floating inputs. The A-port and B-port I/O have been equipped with dynamic pull-downs that are activated when the device is disabled. The control inputs, DIR and OE, will have 5 MΩ static pull-downs always present. If the control inputs are not actively driven by an external source, the default state of the device is enabled with direction set for B to A data flow. Refer to the Feature Description section of the data sheet for more info on these pull-downs.