SN74CBT3244CDBR

B- BIT FET总线开关5 -V总线， 2 -V冲保护开关 B-BIT FET BUS SWITCH 5-V BUS SWITCH WITH 2-V UNDERSHOOT PROTECTION

description/ordering information

The SN74CBT3244C is a high-speed TTL-compatible FET bus switch with low ON-state resistance ron, allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT3244C provides protection for undershoot up to −2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.

• Undershoot Protection for Off-Isolation on A and B Ports Up To −2 V

• Bidirectional Data Flow, With Near-Zero Propagation Delay

• Low ON-State Resistance ron Characteristics ron = 3 Ω Typical

• Low Input/Output Capacitance Minimizes Loading and Signal Distortion CioOFF = 5.5 pF Typical

• Data and Control Inputs Provide Undershoot Clamp Diodes

• Low Power Consumption ICC = 3 µA Max

• VCC Operating Range From 4 V to 5.5 V

• 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

• Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS Outputs

• Ioff Supports Partial-Power-Down Mode Operation

• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

• ESD Performance Tested Per JESD 22

   − 2000-V Human-Body Model A114-B, Class II

   − 1000-V Charged-Device Model C101

• Supports Both Digital and Analog

   Applications: USB Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating