IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH(R) PRODUCTS 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH FEATURES: IDTQS3VH384 DESCRIPTION: * N channel FET switches with no parasitic diode to VCC - Isolation under power-off conditions - No DC path to VCC or GND - 5V tolerant in OFF and ON state * 5V tolerant I/Os typical * Low RON - 4 * Flat RON characteristics over operating range * Rail-to-rail switching 0 - 5V * Bidirectional dataflow with near-zero delay: no added ground bounce * Excellent RON matching between channels * VCC operation: 2.3V to 3.6V * High bandwidth - up to 500MHz * LVTTL-compatible control Inputs * Undershoot Clamp Diodes on all switch and control Inputs * Low I/O capacitance, 4pF typical * Available in QSOP and TSSOP packages The QS3VH384 HotSwitch is a high bandwidth, 10-bit bus switch. The QS3VH384 has very low ON resistance, resulting in under 250ps propagation delay through the switch. Two banks of five switches are controlled by independent (xOE), LVTTL compatible signals for bidirectional data flow with no added delay or ground bounce. In the ON state, the switch can pass signals up to 5V. In the OFF state, the switches offer very high impedence at the terminals. The combination of near-zero propagation delay, high OFF impedance, and over-voltage tolerance makes the QS3VH384 ideal for high performance communications applications. The QS3VH384 is characterized for operation from -40C to +85C. APPLICATIONS: * * * * * Hot-swapping 10/100 Base-T, Ethernet LAN switch Low distortion analog switch Replaces mechanical relay ATM 25/155 switching FUNCTIONAL BLOCK DIAGRAM A0 B0 A4 B4 A5 B5 A9 B9 1O E 2O E The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE AUGUST 2002 1 c 2002 Integrated Device Technology, Inc. DSC-5895/9 IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol 24 VCC B0 1 2 23 B9 A0 3 22 A9 A1 4 21 A8 B1 5 20 B8 B2 6 19 B7 A2 7 18 A7 A3 8 17 A6 B3 9 16 B6 B4 10 15 B5 A4 11 14 A5 GND 12 13 2OE 1OE Max Unit SupplyVoltage to Ground -0.5 to +4.6 V DC Switch Voltage VS -0.5 to +5.5 V VTERM(3) DC Input Voltage VIN -0.5 to +5.5 V VAC AC Input Voltage (pulse width 20ns) -3 V IOUT DC Output Current (max. sink current/pin) 120 mA TSTG Storage Temperature -65 to +150 C VTERM(2) VTERM(3) Description 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) Parameter(1) Symbol QSOP/ TSSOP TOP VIEW Typ. Max. Unit 3 5 pF CIN Control Inputs CI/O Quickswitch Channels (Switch OFF) 4 6 pF CI/O Quickswitch Channels (Switch ON) 8 12 pF NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION Pin Names I/O Description A0 - A9 I/O Bus A B0 - B9 I/O Bus B 1OE, 2OE I Output Enable FUNCTION TABLE(1) 1OE 2OE B0 - B4 B5 - B9 Function H H Z Z Disconnect L H A0 - A4 Z Connect H L Z A5 - A9 Connect L L A0 - A4 A5 - A9 Connect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedence 2 IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 3.3V 0.3V Symbol VIH VIL Parameter Test Conditions Input HIGH Voltage Input LOW Voltage IIN Input Leakage Current (Control Inputs) Min. Typ.(1) Max. Unit Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 -- -- for Control Inputs VCC = 2.7V to 3.6V 2 -- -- V Guaranteed Logic LOW VCC = 2.3V to 2.7V -- -- 0.7 for Control Inputs VCC = 2.7V to 3.6V -- -- 0.8 0V VIN VCC -- -- 1 A V IOZ Off-State Current (Hi-Z) 0V VOUT 5V, Switches OFF -- -- 1 A I OFF Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V -- -- 1 A VCC = 2.3V VIN = 0V ION = 30mA -- 6 8 RON Switch ON Resistance Typical at VCC = 2.5V VIN = 1.7V ION = 15mA -- 7 9 VCC = 3V VIN = 0V ION = 30mA -- 4 6 VIN = 2.4V ION = 15mA -- 5 8 NOTE: 1. Typical values are at VCC = 3.3V and TA = 25C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 14 R ON (ohms) 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 V IN (Volts) 3 3.0 3.5 4.0 4.5 5.0 IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol Test Conditions(1) Parameter Min. Typ. Max. Unit ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC, f = 0 -- 1 4 mA ICC Power Supply Current (2,3) per Input HIGH VCC = Max., VIN = 3V, f = 0 per Control Input -- -- 30 A ICCD Dynamic Power Supply Current VCC = 3.3V, A and B Pins Open, Control Inputs (4) See Typical ICCD vs Enable Frequency graph below Toggling @ 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per input driven at the specified level. A and B pins do not contribute to Icc. 3. This parameter is guaranteed but not tested. 4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and B inputs do not contribute to the Dynamic Power Supply Current. This parameter is guaranteed but not production tested. TYPICAL ICCD vs ENABLE FREQUENCY CURVE AT VCC = 3.3V 12 10 ICCD (mA) 8 6 4 2 0 0 2 4 6 8 10 12 ENABLE FREQUENCY (MHz) 4 14 16 18 20 IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40C to +85C VCC = 2.5 0.2V (1) Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ fxOE Parameter Data Propagation Delay(2,3) Ax to/from Bx Switch Turn-On Delay xOE to Ax/Bx Switch Turn-Off Delay xOE to Ax/Bx Operating Frequency -Enable(2,5) Min. (4) VCC = 3.3 0.3V (1) Max. 0.2 Min. (4) Max. 0.2 Unit ns 1.5 7.5 1.5 7.5 ns 1.5 7 1.5 7 ns 10 20 MHz NOTES: 1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS. 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 0.2ns 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. Minimums are guaranteed but not production tested. 5. Maximum toggle frequency for xOE control input (pass voltage > VCC, VIN = 5V, RLOAD 1M, no CLOAD). 5 IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS NFET 0 to +5V Vcc = 3.3V +6.5V CHARGE PUM P OE 0 to +5V DRIVER SINGLE HOT SW ITCH Rail-to-Rail Switching PHY 3VH SW ITCH 4.5V P P LOGIC SIDE 10M bps to 100M bps Z = 100 Z = 100 >100m 4.5V PP TW ISTED PAIR LOGIC SID E 2V PP Fast Ethernet Data Switching (LAN Switch) ZERO DOW N TIM E SYSTEM PLUG GABLE CARD/ LIV E SYSTEM CARD I/O ON CARD LOGIC CONNECTOR QS3VH XXX CARD I/O ON CARD LOGIC CONNECTOR QS3VHXX X CPU RAM BUS Hot-Swapping 6 IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC(1)= 3.3V 0.3V VCC(2)= 2.5V 0.2V Unit VLOAD 6 2 x Vcc V VIH 3 Vcc SAM E PHASE INPUT TRANSITION V VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF tPLH t PHL t PLH tPHL OUTPUT V IH VT 0V V OH VT V OL V IH VT 0V O PPOSITE PHASE INPUT TRANSITION Propagation Delay V LOAD V CC 500 (1, 2) Pulse Generator V IN CONTRO L INPUT G ND t PZL V OUT D.U.T. RT DISABLE ENABLE Open OUTPUT SW ITCH NORMALLY CLO SED LOW tPZ H OUTPUT SW ITCH NORMALLY OPEN HIGH 500 CL Test Circuits for All Outputs tPLZ V IH VT 0V V LOAD/2 V LO A D /2 VT VOL VOL t PHZ + VT VOH V O H -V H Z 0V 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. Enable and Disable Times DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 10MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 10MHz; tF 2ns; tR 2ns. SWITCH POSITION Test Switch tPLZ/tPZL VLOAD tPHZ/tPZH GND tPD Open 7 V LZ IDTQS3VH384 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX Device Type XX Package Q PA PAG Quarter Size Outline Package Thin Shrink Small Outline Package TSSOP - Green 3VH384 2.5V/3.3V 10-Bit High Bandwidth Bus Switch DATA SHEET DOCUMENT HISTORY 8/6/2002 Updated according to PCN Logic-0206-11 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 8 for Tech Support: logichelp@idt.com (408) 654-6459