IDTQS3862 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH ACTIVE ENABLES INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH(R) PRODUCTS HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH ACTIVE HIGH AND LOW ENABLES IDTQS3862 FEATURES: DESCRIPTION: - - - - - - The QS3862 provides a set of ten high speed CMOS, TTL Compatible bus switches. The low ON resistance (5) of the QS3862 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The switches are controlled by independent active Low enable (BE) and active High enable (BE) controls. 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 Active low and high enable control Available in SOIC and QSOP packages The QS3862 is ideal for switching digital buses as well as hot-plugging, hot-docking, and voltage translation. APPLICATIONS - - - - - - - The QS3862 is characterized for operation at -40C to +85C. Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Power conservation Capacitance reduction and isolation Applications requiring Active-High enabling Clock gating Bus isolation FUNCTIONAL BLOCK DIAGRAM A0 B0 A9 B9 BE BE INDUSTRIAL TEMPERATURE RANGE FEBRUARY 2000 1 c 1999 Integrated Device Technology, Inc. DSC-5734/- IDTQS3862 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH ACTIVE ENABLES INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION Symbol BE 1 VTERM(2) Description Supply Voltage to Ground Max. - 0.5 to +7 Unit V 24 VCC VTERM(3) DC Switch Voltage VS - 0.5 to +7 V VTERM(3) DC Input Voltage VIN - 0.5 to +7 V VAC AC Input Voltage (pulse width 20ns) -3 V IOUT DC Output Current 120 mA PMAX Maximum Power Dissipation 0.5 W TSTG Storage Temperature - 65 to +150 C A0 2 23 BE 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 SO24-2 SO24-8 (1) 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 TOP VIEW Pins Control Inputs 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 I/O I Description Active High Bus Enable BE I A 0 - A9 I/O Bus A B0 - B9 I/O Bus B Active High Bus Enable FUNCTION TABLE(1) BE BE A0 - A9 L L Hi-Z L H H L Hi-Z B0 - B9 H H Hi-Z NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-impedence 2 Function Disconnect Disconnect Connect Disconnect IDTQS3862 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH ACTIVE ENABLES INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 10% Symbol VIH Parameter Input HIGH Voltage Test Conditions Guaranteed Logic HIGH for Control Pins Min. 2 Typ.(1) -- Max. -- Unit V VIL Input LOW Voltage Guaranteed Logic LOW for Control Pins -- -- 0.8 V IIN Input Leakage Current (Control Inputs) 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 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 IDTQS3862 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH ACTIVE ENABLES 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, BE inputs 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, TA = 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 10% CLOAD = 50pF, RLOAD = 500 unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Parameter Data Propagation Delay (2,3) A to B or B to A Switch Turn-on Delay BE or BE to A to B Switch Turn-off Delay (2) BE or BE to A to B Min. (1) Typ. Max. Unit -- -- 0.25 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. 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 IDTQS3862 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH ACTIVE ENABLES INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQ S XXXXX XX Device Type Package X Process Blank Industrial (-40C to +85C ) SO Q Sm all O utline IC (SO 24-2) Quarter-Size O utline Package (SO24-8) 3862 High Speed CM OS 10-Bit Bus Switch with Active H igh and Low Enables 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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