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TI(德州仪器) SN74AUCH16244
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  • TI(德州仪器) SN74AUCH16244
  • TI(德州仪器) SN74AUCH16244
  • TI(德州仪器) SN74AUCH16244
  • TI(德州仪器) SN74AUCH16244
  • TI(德州仪器) SN74AUCH16244
  • TI(德州仪器) SN74AUCH16244
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SN74AUCH16244

SN74AUCH16244

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具有总线保持和三态输出的 16 通道、0.8V 至 2.7V 高速缓冲器

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  • 特性
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  • 封装 | 引脚 | 尺寸

This 16-bit buffer/driver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCC operation.

The SN74AUCH16244 is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE) inputs.

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.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

  • Member of the Texas Instruments Widebus™ Family
  • Optimized for 1.8-V Operation and is 3.6-V I/O Tolerant to Support Mixed-Mode Signal Operation
  • Ioff Supports Partial-Power-Down Mode Operation
  • Sub 1-V Operable
  • Max tpd of 1.8 ns at 1.8 V
  • Low Power Consumption, 20-uA Max ICC
  • ±8-mA Output Drive at 1.8 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.

Technology familyAUC
Supply voltage (min) (V)0.8
Supply voltage (max) (V)2.7
Number of channels16
IOL (max) (mA)9
Supply current (max) (µA)20
IOH (max) (mA)-9
Input typeStandard CMOS
Output type3-State
FeaturesBalanced outputs, Bus-hold, Over-voltage tolerant inputs, Partial power down (Ioff), Ultra high speed (tpd <5ns)
RatingCatalog
Operating temperature range (°C)-40 to 85
TSSOP (DGG)48101.25 mm² 12.5 x 8.1
TVSOP (DGV)4862.08 mm² 9.7 x 6.4
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