SN74LVC32244 32-Bit Buffer/Driver With 3-State Outputs | TIJ.co.jp

SN74LVC32244 (供給中) 32-Bit Buffer/Driver With 3-State Outputs

32-Bit Buffer/Driver With 3-State Outputs - SN74LVC32244
データシート
 

概要

This 32-bit buffer/driver is designed for 1.65-V to 3.6-V VCC operation.

The SN74LVC32244 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 eight 4-bit buffers, four 8-bit buffers, two 16-bit buffers, or one 32-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE)\ inputs.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.

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.

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.

特長

  • Member of the Texas Instruments Widebus+™ Family
  • Operates From 1.65 V to 3.6 V
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 4.1 ns at 3.3 V
  • Typical VOLP (Output Ground Bounce)
       <0.8 V at VCC = 3.3 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot)
       >2 V at VCC = 3.3 V, TA = 25°C
  • Ioff Supports Partial-Power-Down Mode Operation
  • Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)

Widebus+ is a trademark of Texas Instruments.

機能一覧

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Part number オーダー・オプション Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) IOL (Max) (mA) IOH (Max) (mA) ICC (uA) Input type Output type Features Data rate (Mbps) Operating temperature range (C) Package Group
SN74LVC32244 ご注文 LVC     1.65     3.6     32     24     -24     40     Standard CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)    
200     -40 to 85     LFBGA | 96