SN74BCT2245 Octal Bus Transceivers With Series Damping Resistors |

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Octal Bus Transceivers With Series Damping Resistors

Octal Bus Transceivers With Series Damping Resistors - SN74BCT2245


The SN74BCT2245 octal transceiver and line/ MOS driver is designed for asynchronous communication between data buses.

The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can disable the devices so that both buses are effectively isolated.

To ensure the high-impedance state during power up or power down, (OE)\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The B-port outputs, which are designed to source or sink up to 12 mA, include 33- series resistors to reduce overshoot and undershoot.


  • Operating Voltage Range of 4.5 V to 5.5 V
  • State-of-the-Art BiCMOS Design Significantly Reduces ICCZ
  • B Port Has Equivalent 33- Series Resistors, So No External Resistors Are Required
  • 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) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C)
SN74BCT2245 Order now BCT     4.5     5.5     8     5     70     0.1     7     64     -15     Catalog     0 to 70