IDTQS32X861 HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH PRODUCTS IDTQS32X861 HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THRU PINOUT FEATURES: DESCRIPTION: Enhanced N channel FET with no inherent diode to Vcc The QS32X861 provides two sets of ten high-speed CMOS TTL- 5 bidirectional switches connect inputs to outputs compatible bus switches. The low ON resistance of the QS32X861 allows Zero propagation delay, zero ground bounce inputs to be connected to outputs without adding propagation delay and Undershoot clamp diodes on all switch and control inputs without generating additional ground bounce noise. The Bus Enable (BEn) Available in 48-pin QVSOP package signals turn the switches on. The QS32X861 bus switch is ideal for switching digital buses, as well as for hotplug buffering and 5V to 3V conversion. APPLICATIONS: The QS32X861 is characterized for operation at -40C to +85C. Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Power conservation Capacitance reduction and isolation Bus isolation Clock gating FUNCTIONAL BLOCK DIAGRAM A0 B0 A9 B9 BE1 A10 B10 A19 B19 BE2 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE JUNE 2011 1 c 2011 Integrated Device Technology, Inc. DSC-5730/4IDTQS32X861 HIGH-SPEED CMOS 20-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT INDUSTRIAL TEMPERATURE RANGE (1) PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Symbol Description Max Unit (2) VTERM Supply Voltage to Ground 0.5 to +7 V NC 1 48 VCC (3) VTERM DC Switch Voltage Vs 0.5 to +7 V 2 BE1 A0 47 (3) VTERM DC Input Voltage VIN 0.5 to +7 V A1 3 46 B0 VAC AC Input Voltage (pulse width 20ns) 3 V A2 4 45 B1 IOUT DC Output Current 120 mA A3 5 44 B2 PMAX Maximum Power Dissipation (TA = 85C) 0.5 W A4 6 43 B3 TSTG Storage Temperature 65 to +150 C A5 7 42 B4 NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause A6 8 41 B5 permanent damage to the device. This is a stress rating only and functional operation A7 9 40 B6 of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating B7 A8 10 39 conditions for extended periods may affect reliability. A9 11 38 B8 2. Vcc terminals. 3. All terminals except Vcc. GND 12 37 B9 NC 13 36 VCC A10 14 35 BE2 34 B10 A11 15 A12 16 33 B11 CAPACITANCE A13 17 32 B12 (TA = +25C, f = 1.0MHZ, VIN = 0V, VOUT = 0V) A14 18 31 B13 (1) Pins Typ. Max. Unit A15 19 30 B14 Control Pins 3 5 pF A16 20 29 B15 Quickswitch Channels (Switch OFF) 5 7 pF A17 21 B16 28 NOTE: 1. This parameter is measured at characterization but not tested. A18 22 27 B17 A19 23 26 B18 GND 24 25 B19 PIN DESCRIPTION QVSOP TOP VIEW Pin Names I/O Description A0 - A19 I/O Bus A B0 - B19 I/O Bus B BEn I Bus Enable (1) FUNCTION TABLE BE1 BE2 A0 - A9 A10 - A19 Function LL B0 - B9 B10 - B19 Connect LH B0 - B9 Z Connect HL Z B10 - B19 Connect H H Z Z Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedance 2
