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SN74CBTD3306C Datasheet(PDF) 1 Page - Texas Instruments |
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SN74CBTD3306C Datasheet(HTML) 1 Page - Texas Instruments |
1 / 12 page SN74CBTD3306C DUAL FET BUS SWITCH WITH LEVEL SHIFTING 5V BUS SWITCH WITH 2V UNDERSHOOT PROTECTION SCDS128A − SEPTEMBER 2003 − REVISED OCTOBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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/3.3-V CMOS Outputs D Ioff Supports Partial-Power-Down Mode Operation D Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II D ESD Performance Tested Per JESD 22 − 2000-V Human-Body Model (A114-B, Class II) − 1000-V Charged-Device Model (C101) D Supports Both Digital and Analog Applications: USB Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating D OR PW PACKAGE (TOP VIEW) 1 2 3 4 8 7 6 5 1OE 1A 1B GND VCC 2OE 2B 2A 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 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 switch. When OE is low, the associated 1-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is high, the associated 1-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING SOIC − D Tube SN74CBTD3306CD CC306C −40 °C to 85°C SOIC − D Tape and reel SN74CBTD3306CDR CC306C −40 °C to 85°C TSSOP − PW Tube SN74CBTD3306CPW CC306C TSSOP − PW Tape and reel SN74CBTD3306CPWR CC306C † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 2003, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. |
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