IDTQS32X245 HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH PRODUCTS IDTQS32X245 HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH DESCRIPTION: FEATURES: The QS32X245 provides a set of 16 high-speed CMOS TTL-compatible Enhanced N channel FET with no inherent diode to Vcc bus switches in a flow-through pinout. The low ON resistance of the 5 bidirectional switches connect inputs to outputs QS32X245 allows inputs to be connected to outputs without adding propa- Dual 245 function gation delay and without generating additional ground bounce noise. The Zero propagation delay, zero ground bounce Output Enable (OEn) signals turn the switches on similar to the OEn signal Undershoot clamp diodes on all switch and control inputs of the 74 245. TTL-compatible control inputs QuickSwitch devices provide an order of magnitude faster speed than Available in 40-pin QVSOP package conventional logic devices. The QS32X245 is characterized for operation at -40C to +85C. APPLICATIONS: Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Bus switching and isolation Power conservation Clock gating Logic replacement FUNCTIONAL BLOCK DIAGRAM A0 A1 A2 A3 A4 A5 A6 A7 OE1 B0 B1 B2 B3 B4 B5 B6 B7 A8 A9 A10 A11 A12 A13 A14 A15 OE2 B8 B9 B10 B11 B12 B13 B14 B15 IDT and the IDT logo registered trademarks of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE FEBRUARY 2011 1 c 2011 Integrated Device Technology, Inc. DSC-5726/5IDTQS32X245 HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE (1) PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Symbol Description Max Unit (2) VTERM Supply Voltage to Ground 0.5 to +7 V VCC NC 1 40 (3) VTERM DC Switch Voltage Vs 0.5 to +7 V A0 2 39 OE1 (3) VTERM DC Input Voltage VIN 0.5 to +7 V A1 B0 VAC AC Input Voltage (pulse width 20ns) 3 V 38 3 IOUT DC Output Current 120 mA A2 37 B1 4 PMAX Maximum Power Dissipation (TA = 85C) 0.92 W A3 36 B2 TSTG Storage Temperature 65 to +150 C 5 A4 B3 NOTE: 35 6 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation A5 34 B4 7 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 A6 33 B5 8 conditions for extended periods may affect reliability. 2. Vcc terminals. 32 B6 A7 9 3. All terminals except Vcc. GND 31 B7 10 NC 30 Vcc 11 A8 29 12 OE2 A9 28 B8 13 CAPACITANCE 27 A10 B9 14 (TA = +25C, f = 1.0MHZ, VIN = 0V, VOUT = 0V) 26 B10 A11 15 (1) Pins Typ. Max. Unit 25 A12 B11 16 Control Pins 3 5 pF Quickswitch Channels (Switch OFF) 5 7 pF A13 B12 17 24 NOTE: A14 18 23 B13 1. This parameter is measured at characterization but not tested. B14 A15 19 22 B15 GND 20 21 PIN DESCRIPTION Pin Names I/O Description QVSOP OE1, OE2 I Bus Enable TOP VIEW An I/O Bus A Bn I/O Bus B (1) FUNCTION TABLE OE1 OE2 A0 - A7 A8 - A15 Function H H Z Z Disconnect LH B0 - B7 Z Connect HL Z B8 - B15 Connect LL B0 - B7 B8 - B15 Connect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedance 2