IDTQS3861 HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH(R) PRODUCTS HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT IDTQS3861 FEATURES: DESCRIPTION - - - - - The QS3861 provides a set of ten high speed CMOS, TTL-compatible bus switches. The low ON resistance (5) of the QS3861 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The Bus Enable (BE) signal turns the switches on. Enhanced N channel FET with no inherent diode to Vcc 5 bidirectional switches connect inputs to outputs Zero propagation delay, zero ground bounce Undershoot clamp diodes on all switch and control inputs Available in QSOP, SOIC, and TSSOP Packages The QS3861 is characterized for operation at -40C to +85C. APPLICATIONS - - - - - - 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 BE INDUSTRIAL TEMPERATURE RANGE DECEMBER 2000 1 c 2000 Integrated Device Technology, Inc. DSC-5767/- IDTQS3861 HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION Symbol (1) VTERM(2) Description Supply Voltage to Ground Max. - 0.5 to +7 Unit V VTERM(3) DC Switch Voltage VS - 0.5 to +7 V NC 1 24 VCC VTERM(3) DC Input Voltage VIN - 0.5 to +7 V A0 2 23 BE VAC AC Input Voltage (pulse width 20ns) -3 V IOUT DC Output Current 120 mA PMAX Maximum Power Dissipation (TA = 85C) 0.5 W TSTG Storage Temperature - 65 to +150 C A1 3 22 B0 A2 4 21 B1 A3 5 20 B2 A4 6 19 B3 A5 7 18 B4 A6 8 17 B5 A7 9 16 B6 A8 10 15 B7 A9 11 14 B8 GND 12 13 B9 S O 2 4 -2 S O 2 4 -8 S O 2 4 -9 NOTES: 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 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 conditions for extended periods may affect reliability. 2. Vcc Terminals. 3. All terminals except Vcc. CAPACITANCE (TA = +25OC, f = 1.0MHz, VIN = 0V, VOUT = 0V) SOIC/ QSOP/ TSSOP TOP VIEW Pins Control Pins Typ. 3 Max. (1) 5 Unit pF Quickswitch Channels (Switch OFF) 5 7 pF NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION Pin Names BE Description Bus Enable A0 - A9 Bus A B 0 - B9 Bus B FUNCTION TABLE(1) BE A0 - A9 2A, 2Y I/Os H Hi-Z B 0 - B9 Disconnect L NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-impedence 2 Connect IDTQS3861 HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 5% Symbol VIH Parameter Input HIGH Voltage VIL Input LOW Voltage Test Conditions Guaranteed Logic HIGH for Control Pins Min. 2 Typ.(1) -- Max. -- Unit V Guaranteed Logic LOW for Control Pins -- -- 0.8 V IIN Input Leakage Current (Control 0V VIN Vcc -- 0.01 1 A IOZ Off-State Current (Hi-Z) 0V VOUT Vcc, Switches OFF -- 0.01 1 A RON Switch ON Resistance Vcc = Min., VIN = 0V, ION = 30mA -- 5 7 RON Switch ON Resistance Vcc = Min., VIN = 2.4V, ION = 15mA -- 10 15 VP Pass Voltage (2) VIN = Vcc = 5V, IOUT = -5A 3.7 4 4.2 V Inputs) (2) NOTES: 1. Typical values are at VCC = 5.0V, TA = 25C. 2. Pass voltage is guaranteed but not production tested. TYPICAL ON RESISTANCE vs VIN AT VCC = 5V 16 R ON (ohms) 14 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 V IN (Volts) 3 2.5 3.0 3.5 IDTQS3861 HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICCQ Parameter Quiescent Power Supply Current Test Conditions(1) VCC = Max., VIN = GND or Vcc, f = 0 Typ. (2) 0.2 Max. 3 Unit A ICC Power Supply Current per Control Input HIGH ICCD Dynamic Power Supply Current per MHz(4) VCC = Max., VIN = 3.4V(3), f = 0 -- 2.5 mA VCC = Max., A and B pins open, BE Input Toggling at 50% Duty Cycle -- 0.25 mA/MHz NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Typical values are at VCC = 5.0V, 25C ambient. 3. Per TLL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to Icc. 4. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested. SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40C to +85C, VCC = 5.0V 5% CLOAD = 50pF, RLOAD = 500 unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Parameter Data Propagation Delay (2,4) A to B or B to A Switch Turn-on Delay BE to A or B Switch Turn-off Delay (2) BE to A or B Min. (1) Typ. Max. Unit -- -- 0.25 (3) ns 1.5 -- 6.5 ns 1.5 -- 5.5 ns NOTES: 1. Minimums are guaranteed but not production tested. 2. This parameter is guaranteed but not production tested. 3. The time constant for the switch alone is of the order of 0.25ns for CL = 50pF. 4. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 4 IDTQS3861 HIGH-SPEED CMOS QUICKSWITCH 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX XX Device Type Package SO Q PA Sm all Outline IC (SO 24-2) Quarter-Size Outline Package (SO 24-8) Thin Shrink Sm all Outline Package (SO24-9) 3861 High Speed CM OS 10-Bit Bus Sw itch with Flow -Through Pinout CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com* *To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2. 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