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TI(德州仪器) SN74ABT162244
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  • TI(德州仪器) SN74ABT162244
  • TI(德州仪器) SN74ABT162244
  • TI(德州仪器) SN74ABT162244
  • TI(德州仪器) SN74ABT162244
  • TI(德州仪器) SN74ABT162244
  • TI(德州仪器) SN74ABT162244
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SN74ABT162244

SN74ABT162244

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具有 TTL 兼容型 CMOS 输入和三态输出的 16 通道、4.5V 至 5.5V 缓冲器

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The ’ABT162244 devices are 16-bit buffers and line drivers designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide noninverting outputs and symmetrical active-low output-enable (OE) inputs.

The outputs, which are designed to source or sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot.

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.

These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.

  • Members of the Texas Instruments Widebus™ Family
  • Output Ports Have Equivalent 25- Series Resistors, So No External Resistors Are Required
  • Typical VOLP (Output Ground Bounce) <1 V at VCC = 5 V, TA = 25°C
  • High-Impedance State During Power Up and Power Down
  • Ioff and Power-Up 3-State Support Hot Insertion
  • Distributed VCC and GND Pins Minimize High-Speed Switching Noise
  • Flow-Through Architecture Optimizes PCB Layout
  • Latch-Up Performance Exceeds 500 mA Per JESD-17

Widebus is a trademark of Texas Instruments.

Technology familyABT
Supply voltage (min) (V)4.5
Supply voltage (max) (V)5.5
Number of channels16
IOL (max) (mA)12
Supply current (max) (µA)30000
IOH (max) (mA)-12
Input typeTTL-Compatible CMOS
Output type3-State
FeaturesBalanced outputs, Damping resistors, Over-voltage tolerant inputs, Partial power down (Ioff), Power up 3-state, Ultra high speed (tpd <5ns)
RatingCatalog
Operating temperature range (°C)-40 to 85
SSOP (DL)48164.358 mm² 15.88 x 10.35
TSSOP (DGG)48101.25 mm² 12.5 x 8.1
TVSOP (DGV)4862.08 mm² 9.7 x 6.4
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