SN54LVTH162244 3.3.-V ABT 16-Bit Buffers/Drivers With 3-State Outputs | TI.com

SN54LVTH162244 (ACTIVE) 3.3.-V ABT 16-Bit Buffers/Drivers With 3-State Outputs

3.3.-V ABT 16-Bit Buffers/Drivers With 3-State Outputs - SN54LVTH162244
Datasheet
 

Description

The 'LVTH162244 devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs.

The outputs, which are designed to source or sink up to 12 mA, include equivalent 22- series resistors to reduce overshoot and undershoot.

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.

When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, 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.

Features

  • Members of the Texas Instruments Widebus™ Family
  • Output Ports Have Equivalent 22- Series Resistors, So No External Resistors Are Required
  • Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
  • Support Unregulated Battery Operation Down to 2.7 V
  • Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
  • Ioff and Power-Up 3-State Support Hot Insertion
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • 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
  • 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) Channels (#) IOL (Max) (mA) IOH (Max) (mA) ICC (uA) Input type Output type Features Data rate (Mbps) Rating Operating temperature range (C) Package Group
SN54LVTH162244 Order now LVT     2.7     3.6     16     12     -12     5000     TTL-Compatible CMOS     3-State     Balanced outputs
Ultra high speed (tpd <5ns)
Partial power down (Ioff)
Over-voltage tolerant inputs
Power up 3-state
Damping resistors
Bus-hold    
320     Military     -55 to 125     CFP | 48    
SN74LVTH162244 Order now LVT     2.7     3.6     16     12     -12     5000     TTL-Compatible CMOS     3-State     Balanced outputs
Ultra high speed (tpd <5ns)
Partial power down (Ioff)
Over-voltage tolerant inputs
Power up 3-state
Bus-hold    
320     Catalog     -40 to 85     BGA MICROSTAR JUNIOR | 54
BGA MICROSTAR JUNIOR | 56
SSOP | 48
TSSOP | 48