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SN74CB3Q16210DGVR Datasheet(PDF) 2 Page - Texas Instruments |
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SN74CB3Q16210DGVR Datasheet(HTML) 2 Page - Texas Instruments |
2 / 11 page SN74CB3Q16210 20BIT SWITCH 2.5V/3.3V LOW VOLTAGE FET BUS SWITCH SCDS166 − MAY 2004 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description/ordering information The SN74CB3Q16210 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 SN74CB3Q16210 provides an optimized interface solution ideally suited for broadband communications, networking, and data-intensive computing systems. The SN74CB3Q16210 is organized as two 10-bit bus switches with separate output-enable (1OE, 2OE) inputs. It can be used as two 10-bit bus switches or as one 20-bit bus switch. When OE is low, the associated 10-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 10-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING SSOP − DL Tube SN74CB3Q16210DL CB3Q16210 −40 °C to 85°C SSOP − DL Tape and reel SN74CB3Q16210DLR CB3Q16210 −40 °C to 85°C TSSOP − DGG Tape and reel SN74CB3Q16210DGGR CB3Q16210 TVSOP − DGV Tape and reel SN74CB3Q16210DGVR BW210 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each 10-bit bus switch) INPUT INPUT/OUTPUT FUNCTION INPUT OE INPUT/OUTPUT A FUNCTION L B A port = B port H Z Disconnect |
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