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SN74CB3Q32245ZKER датащи(PDF) 1 Page - Texas Instruments |
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SN74CB3Q32245ZKER датащи(HTML) 1 Page - Texas Instruments |
1 / 10 page SN74CB3Q32245 32BIT BUS SWITCH 2.5V/3.3V HIGH BANDWIDTH SCES622 – JANUARY 2005 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Member of the Texas Instruments Widebus+ Family D High-Bandwidth Data Path (Up to 500 MHz†) D 5-V-Tolerant I/Os with Device Powered Up or Powered Down D Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range (ron = 5 Ω Typical) D 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 D Bidirectional Data Flow, With Near-Zero Propagation Delay D Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 4 pF Typical) D Fast Switching Frequency (fOE = 20 MHz Max) † For additional information regarding the performance characteristics of the CB3Q family, refer to the TI application report, CBT-C, CB3T, and CB3Q Signal-Switch Families, literature number SCDA008. D Data and Control Inputs Provide Undershoot Clamp Diodes D Low Power Consumption (ICC = 2 mA Typical) D VCC Operating Range From 2.3 V to 3.6 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: PCI Interface, Differential Signal Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating description/ordering information The SN74CB3Q32245 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 SN74CB3Q32245 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems. The SN74CB3Q32245 is organized as four 8-bit bus switches with separate output-enable (1OE, 2OE, 3OE, 4OE) inputs. It can be used as four 8-bit bus switches, two 16-bit bus switches, or as one 32-bit bus switch. When OE is low, the associated 8-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 8-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 −40 °C to 85°C LFBGA − GKE Tape and reel SN74CB3Q32245GKER BZ245 −40 °C to 85°C LFBGA − ZKE (Pb-free) Tape and reel SN74CB3Q32245ZKER BZ245 ‡ Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2005, 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. Widebus+ is a trademark of Texas Instruments. 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. |
Аналогичный номер детали - SN74CB3Q32245ZKER |
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Аналогичное описание - SN74CB3Q32245ZKER |
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