SN74LVCZ32245AZKER

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SN74LVCZ32245AZKER

32-Bit Bus Transceiver with 3-State Outputs

Packaging

Package | PIN: ZKE | 96
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $4.37
10-24 $3.93
25-99 $3.66
100-249 $3.21
250-499 $3.01
500-749 $2.56
750-999 $2.16
1000+ $2.06

Features

  • Member of the Texas Instruments Widebus+™ Family
  • Operates From 2.7 V to 3.6 V
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 3.7 ns at 3.3 V
  • Ioff and Power-Up 3-State Support Hot Insertion
  • Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 1000-V Charged-Device Model (C101)

Widebus+ is a trademark of Texas Instruments.

Texas Instruments  SN74LVCZ32245AZKER

This 32-bit (quad-octal) noninverting bus transceiver is designed for 2.7-V to 3.6-V VCC operation.

The SN74LVCZ32245A is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements.

This device can be used as four 8-bit transceivers, two 16-bit transceivers, or one 32-bit transceiver. It allows 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 are effectively isolated.

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.

When VCC is between 0 and 1.5 V, the device is 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.

This device is 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 device when it is 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.