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U74CBTLV3245 - LOW-VOLTAGE OCTAL FET BUS SWITCH

Description

The U74CBTLV3245 provides eight bits of high-speed bus switching in a standard '245 device pinout.

The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The device is organized as one 8-bit switch.

Features

  • S.
  • 5Ω Switch Connection Between Two Ports.
  • Standard ‘245-Type Pinout.
  • Isolation Under Power-Off Conditions.
  • Rail-to-Rail Switching on Data I/O Ports.
  • IOFF Supports Partial-Power-Down Mode Operation.

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD U74CBTLV3245 Preliminary LOW-VOLTAGE OCTAL FET BUS SWITCH CMOS IC  DESCRIPTION The U74CBTLV3245 provides eight bits of high-speed bus switching in a standard '245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When output enable ( OE ) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports. This device is fully specified for partial-power-down applications using IOFF. The IOFF feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.
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