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SN74CBTD3306C Datasheet DUAL FET BUS SWITCH

Manufacturer: Texas Instruments

Overview: SN74CBTD3306C DUAL FET BUS SWITCH WITH LEVEL SHIFTING 5ĆV BUS SWITCH WITH ć2ĆV UNDERSHOOT PROTECTION SCDS128A − SEPTEMBER 2003 − REVISED OCTOBER 2003 D Undershoot Protection for Off-Isolation on A and B Ports Up To −2 V D Integrated Diode to VCC Provides 5-V Input Down To 3.3-V Output Level Shift D Bidirectional Data Flow, With Near-Zero Propagation Delay D Low ON-State Resistance (ron) Characteristics (ron = 3 Ω Typical) D Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5 pF Typical) D Data and Control Inputs Provide Undershoot Clamp Diodes D VCC Operating Range From 4.5 V to 5.5 V D Data I/Os Support 0 to 5-V Signaling Levels (0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V) D Control Inputs Can be Driven by TTL or 5-V/3.

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General Description

/ordering information The SN74CBTD3306C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay.

This device

Key Features

  • an integrated diode in series with VCC to provide level shifting for 5-V input down to 3.3-V output levels. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBTD3306C provides protection for undershoot up to.
  • 2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state. The SN74CBTD3306C is organized as two 1-bit bus switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 1-bit bus switches or as one 2-bit bus.

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