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SN74CB3Q3305PWR Datenblatt(PDF) 1 Page - Texas Instruments |
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SN74CB3Q3305PWR Datenblatt(HTML) 1 Page - Texas Instruments |
1 / 13 page 1 2 3 4 8 7 6 5 1OE 1A 1B GND VCC 2OE 2B 2A 1 2 3 4 8 7 6 5 1OE 1A 1B GND V CC 2OE 2B 2A SN74CB3Q3305 www.ti.com SCDS141B – OCTOBER 2003 – REVISED OCTOBER 2009 DUAL FET BUS SWITCH 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH Check for Samples: SN74CB3Q3305 1 FEATURES • High-Bandwidth Data Path (up to 500 MHz) PW PACKAGE For additional information regarding the performance (TOP VIEW) characteristics of the CB3Q family, refer to the TI application report, CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008. • 5-V Tolerant I/Os With Device Powered Up or Powered Down • Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range DCU PACKAGE (ron = 3 Ω Typ) (TOP VIEW) • Rail-to-Rail Switching on Data I/O Ports – 0- to 5-V Switching With 3.3-V VCC – 0- to 3.3-V Switching With 2.5-V VCC • Bidirectional Data Flow With Near-Zero Propagation Delay • Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 3.5 pF Typ) • Fast Switching Frequency (fOE = 20 MHz Max) DESCRIPTION/ORDERING INFORMATION • Data and Control Inputs Provide Undershoot The SN74CB3Q3305 is a high-bandwidth FET bus Clamp Diodes switch utilizing a charge pump to elevate the gate • Low Power Consumption (ICC = 0.25 mA Typ) voltage of the pass transistor, providing a low and flat • VCC Operating Range From 2.3 V to 3.6 V ON-state resistance (ron). The low and flat ON-state • Data I/Os Support 0- to 5-V Signaling Levels resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V) (I/O) ports. The device also features low data I/O • Control Inputs Can Be Driven by TTL or capacitance to minimize capacitive loading and signal 5-V/3.3-V CMOS Outputs distortion on the data bus. Specifically designed to • Ioff Supports Partial-Power-Down Mode support high-bandwidth applications, the Operation SN74CB3Q3305 provides an optimized interface solution ideally suited for broadband communications, • Latch-Up Performance Exceeds 100 mA Per networking, and data-intensive computing systems. JESD 78, Class II The SN74CB3Q3305 is organized as two 1-bit • ESD Performance Tested Per JESD 22 switches with separate output-enable (1OE, 2OE) – 2000-V Human-Body Model inputs. It can be used as two 1-bit bus switches or as (A114-B, Class II) one 2-bit bus switch. When OE is high, the – 1000-V Charged-Device Model (C101) associated 1-bit bus switch is ON and the A port is connected to the B port, allowing bidirectional data • Supports Both Digital and Analog flow between ports. When OE is low, the associated Applications: USB Interface, Differential Signal 1-bit bus switch is OFF and a high-impedance state Interface, Bus Isolation, Low-Distortion Signal exists between the A and B ports. Gating 1 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. PRODUCTION DATA information is current as of publication date. Copyright © 2003–2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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