32-bit Fet Bus Switch With Active Clamp Undershoot Circuit

  /ordering information The SN74CBTK32245 provides 32 bits of high-speed TTL-compatible bus switching. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The A and B ports have an active-clamp undershoot-protection circuit. When there is an undershoot, the active-clamp circuit is enabled and current from VCC is supplied to clamp the output, preventing the pass Transistor from turning on. The device is organized as four 8-bit bus Switches two 16-bit bus Switches or one 32-bit bus switch. When the output-enable (OE) input is low, the 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 circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. ORDERING INFORMATION
Item: SN74CBTK32245
File Size : 53 KB
Pages : 12 Pages

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Texas Instruments Incorporated
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