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74CB3Q3253DBQRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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74CB3Q3253DBQRG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 19 page www.ti.com FEATURES 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1OE S1 1B4 1B3 1B2 1B1 1A GND VCC 2OE S0 2B4 2B3 2B2 2B1 2A DBQ, DGV, OR PW PACKAGE (TOP VIEW) RGY PACKAGE (TOP VIEW) 1 16 8 9 2 3 4 5 6 7 15 14 13 12 11 10 2OE S0 2B4 2B3 2B2 2B1 S1 1B4 1B3 1B2 1B1 1A DESCRIPTION/ORDERING INFORMATION SN74CB3Q3253 DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH SCDS145A – OCTOBER 2003 – REVISED MARCH 2005 • Data and Control Inputs Provide Undershoot Clamp Diodes • High-Bandwidth Data Path (up to 500 MHz (1)) • Low Power Consumption (I CC = 0.6 mA Typ) • 5-V Tolerant I/Os With Device Powered Up or Powered Down • V CC Operating Range From 2.3 V to 3.6 V • Low and Flat ON-State Resistance (r on) • Data I/Os Support 0- to 5-V Signal Levels (0.8 Characteristics Over Operating Range V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V) (r on = 4 Ω Typ) • Control Inputs Can be Driven by TTL or • Rail-to-Rail Switching on Data I/O Ports 5-V/3.3-V CMOS Outputs – 0- to 5-V Switching With 3.3-V V CC • I off Supports Partial-Power-Down Mode Operation – 0- to 3.3-V Switching With 2.5-V V CC • Latch-Up Performance Exceeds 100 mA Per • Bidirectional Data Flow With Near-Zero JESD 78, Class II Propagation Delay • ESD Performance Tested Per JESD 22 • Low Input/Output Capacitance Minimizes Loading and Signal Distortion – 2000-V Human-Body Model (A114-B, (C io(OFF) = 3.5 pF Typ) Class II) • Fast Switching Frequency (f OE = 20 MHz Max) – 1000-V Charged-Device Model (C101) • Supports Both Digital and Analog (1) For additional information regarding the performance Applications: USB Interface, Differential characteristics of the CB3Q family, refer to the TI application Signal Interface Bus Isolation, Low-Distortion report CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008. Signal Gating The SN74CB3Q3253 is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3253 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems. 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 © 2003–2005, 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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