SN74ABT162245 16-Bit Bus Transceivers With 3-State Outputs | TI.com

SN74ABT162245 (ACTIVE) 16-Bit Bus Transceivers With 3-State Outputs

16-Bit Bus Transceivers With 3-State Outputs - SN74ABT162245
Datasheet
 

Description

The ’ABT162245 devices are 16-bit noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow 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 be used to disable the device so that the buses effectively are isolated.

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

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are 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.

Features

  • Members of the Texas Instruments Widebus™ Family
  • A-Port Outputs 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
  • Distributed VCC and GND Pins Minimize High-Speed Switching Noise
  • Ioff Supports Partial-Power-Down Mode Operation
  • Flow-Through Architecture Optimizes PCB Layout
  • Latch-Up Performance Exceeds 500 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    - 2000-V Human-Body Model (A114-A)
    - 200-V Machine Model (A115-A)

Widebus is a trademark of Texas Instruments.

Parametrics

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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)
SN74ABT162245 Order now ABT     4.5     5.5     16     5     150     0.032     5.1     64     -32     Catalog     -40 to 85    
SN54ABT162245 Samples not available ABT     4.5     5.5     16     5     150     0.032     5.2     48     -24     Military     -55 to 125