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| IDTQS3L383 HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH(R) PRODUCTS HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH FEATURES: * * * * * * * IDTQS3L383 DESCRIPTION: Enhanced N channel FET with no inherent diode to Vcc 5 bidirectional switches connect inputs to outputs Zero propagation delay, zero added ground bounce Ultra low power with 0.2A typical Icc Undershoot clamp diodes on all switch and control inputs Bus exchange allows nibble swap Available in QSOP and SOIC packages APPLICATIONS: * * * * The QS3L383 provides ten high-speed CMOS TTL-compatible bus switches. The low ON resistance of the QS3L383 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. The Bus Exchange (BX) signal provides nibble swap of the AB and CD pairs of signals. This exchange configuration allows byte swapping of buses in systems. It can also be used as a 5-wide 2-to-1 multiplexer and to create low delay barrel shifters, etc. The QS3L383 is characterized for operation at -40C to +85C. Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Resource sharing Crossbar switching FUNCTIONAL BLOCK DIAGRAM A0 C0 B0 D0 A4 C4 B4 D4 BX BE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE 1 c 1999 Integrated Device Technology, Inc. NOVEMBER 1999 DSC-5574/1 IDTQS3L383 HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION BE C0 A 0 B 0 D0 C1 A 1 B 1 D1 C2 A 2 GND 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 2 4 2 3 2 2 2 1 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 VCC D4 B 4 A 4 C4 D3 B 3 A 3 C3 D2 B 2 BX ABSOLUTE MAXIMUM RATINGS(1) Symbol VTERM(2) VTERM(3) VTERM(3) VAC IOUT PMAX TSTG Description Supply Voltage to Ground DC Switch Voltage VS DC Input Voltage VIN AC Input Voltage (pulse width 20ns) DC Output Current Maximum Power Dissipation (TA = 85C) Storage Temperature Max -0.5 to +7 -0.5 to +7 -0.5 to +7 -3 120 0.5 -65 to +150 Unit V V V V mA W C 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 = +25C, f = 1MHz, VIN = 0V, VOUT = 0V) Pins Typ. 3 5 Max. (1) 5 7 Unit pF pF Control Inputs Quickswitch Channels (Switch OFF) SOIC/ QSOP TOP VIEW NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION Pin Names A0 - A4, B0 - B4 C0 - C4, D0 - D4 BE BX I/O I/O I/O I I Description A and B Buses C and D Buses Bus Switch Enable Bus Exchange FUNCTION TABLE(1) BE H L L BX X L H A0 - A4 Hi-Z C0 - C4 D0 - D4 B0 - B4 Hi-Z D0 - D4 C0 - C4 Function Disconnect Connect Exchange NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance 2 IDTQS3L383 HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5V 5% Symbol VIH VIL IIN IOZ RON VP Parameter Input HIGH Voltage Input LOW Voltage Input Leakage Current (Control Inputs) Off-State Current (Hi-Z) Switch ON Resistance(2) Pass Voltage(3) Test Conditions Guaranteed Logic HIGH for Control Pins Guaranteed Logic LOW for Control Pins 0V VIN VCC 0V VOUT VCC, Switches OFF VCC = Min., VIN = 0V, ION = 30mA VCC = Min., VIN = 2.4V, ION = 15mA VIN = VCC = 5V, IOUT = -5A Min. 2 -- -- -- -- -- 3.7 Typ.(1) Max. -- -- 0.01 0.01 6 12 4 -- 0.8 1 1 8 17 4.2 V Unit V V A A NOTES: 1. Typical values are at VCC = 5V and TA = 25C. 2. RON is guaranteed but not production tested. 3. Pass voltage is guaranteed but not production tested. TYPICAL ON RESISTANCE vs VIN AT VCC = 5V 16 RON (ohms) 14 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VIN (Volts) 3 IDTQS3L383 HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICCQ ICC ICCD Parameter Quiescent Power Supply Current Power Supply Current per Input HIGH(2) Dynamic Power Supply Current per MHz (3) Test Conditions(1) VCC = Max., VIN = GND or VCC, f = 0 VCC = Max., VIN = 3.4V, f = 0 VCC = Max., A - D Pins Open, Control Inputs Toggling @ 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per TTL-driven input (VIN = 3.4V, control inputs only). A-D pins do not contribute to Icc. 3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A-D inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested. Typ. 0.2 Max. 3 1.5 0.25 Unit A mA mA/MHz SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40C to +85C, VCC = 5V 5% CLOAD = 50pF, RLOAD = 500 unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ tBX Parameter Data Propagation Delay(2) AxBx to CxDx, CxDx to AxBx Switch Turn-On Delay BE to Ax, Bx, Cx, Dx Switch Turn-Off Delay(2) BE to Ax, Bx, Cx, Dx Switch Multiplex Delay BX to Ax, Bx, Cx, Dx 1.5 6.5 ns 1.5 1.5 6.5 5.5 ns ns Min. (1) Typ. Max. 0.25(3) Unit ns NOTES: 1. Minimums are guaranteed but not production tested. 2. This parameter is guaranteed but not production tested. 3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns at CL = 50pF. 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 IDTQS3L383 HIGH-SPEED LOW POWER 10-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX Device Type XX Package X Process Blank Industrial (-40C to +85C) SO Q Small Outline IC Quarter Size Outline Package 3L383 High Speed Low Power 10-Bit Bus Exchange Switch 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 for Tech Support: logichelp@idt.com (408) 654-6459 5 |
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