SN74CBT3253C Datasheet | Texas Instruments

.ti. SN74CBT3253C DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 5-V BUS SWITCH WITH - 2-V UNDERSHOOT PROTECTION SCDS123B - JULY 2003 - REVISED JANUARY 2007 Features - SN74CBT3253C Functionally Identical to Industry-Standard ’3253 Function - 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 (Cio(OFF) = 5.5 p F 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 m A 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 I2C Bus Expansion - Supports Both Digital and Analog Applications: USB Interface, Bus Isolation, Low-Distortion Signal Gating DESCRIPTION/ORDERING INFORMATION The SN74CBT3253C is a high-speed TTL-patible FET multiplexer/demultiplexer with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT3253C provides protection for undershoot up to - 2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF...