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SN74BCT2245

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具有串联阻尼电阻的八通道总线收发器

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SN74BCT2245

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数据表 立即订购

产品详情

Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -12 Input type TTL Output type TTL Features Damping resistors, Very high speed (tpd 5-10ns) Technology family BCT Rating Catalog Operating temperature range (°C) 0 to 70
Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -12 Input type TTL Output type TTL Features Damping resistors, Very high speed (tpd 5-10ns) Technology family BCT Rating Catalog Operating temperature range (°C) 0 to 70
SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) SOP (NS) 20 98.28 mm² (12.6 mm × 7.8 mm)
  • 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)
  • 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)

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.

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.
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* 数据表 SN74BCT2245 数据表 (Rev. C) 2003-3-11

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