IDTQS32XVH384 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH FEATURES: IDTQS32XVH384 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 Ω typical • Low RON - 4Ω • 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 48-pin QVSOP (S1) package The QS32XVH384 HotSwitch is a high bandwidth, 20-bit bus switch. The QS32XVH384 has very low ON resistance, resulting in under 250ps propagation delay through the switch. Four 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 switches 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 QS32XVH384 ideal for high performance communications applications. The QS32XVH384 is characterized for operation from -40°C to +85°C. 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 A 10 B 10 A4 B4 A 14 B 14 A5 B5 A 15 B 15 A9 B9 A 19 B 19 1O E 4O E 3O 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-5946/10 IDTQS32XVH384 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol 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 VTERM(2) VTERM(3) Description 1OE 1 48 VCC B0 2 47 B19 VAC AC Input Voltage (pulse width ≤20ns) –3 V A0 3 46 A19 IOUT DC Output Current (max. sink current/pin) 120 mA A1 4 45 A18 TSTG Storage Temperature –65 to +150 °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 . B1 5 44 B18 B2 6 43 B17 A2 7 42 A17 A3 8 41 A16 B3 9 40 B16 B4 10 39 B15 A4 11 38 A15 GND 12 37 2OE 3OE 13 36 VCC B5 14 35 B14 Symbol CIN Control Inputs CI/O Quickswitch Channels (Switch OFF) 4 6 pF CI/O Quickswitch Channels (Switch ON) 8 12 pF A5 15 34 A14 A6 16 33 A13 B6 17 32 B13 B7 18 31 A7 19 30 B12 A12 A8 20 29 A11 B8 21 28 B11 B9 22 27 B10 A9 23 26 A10 24 GND 25 CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT = 0V) PIN DESCRIPTION I/O I/O Bus A B0 - B19 I/O Bus B 1OE I Output Enable, 0 - 4 2OE I Output Enable, 15 - 19 3OE I Output Enable, 5 - 9 4OE I Output Enable, 10 - 14 Max. Unit 3 5 pF FUNCTION TABLE(1) QVSOP TOP VIEW A0 - A19 Typ. NOTE: 1. This parameter is guaranteed but not production tested. 4OE Pin Names Parameter(1) 1OE 2OE B0 - B4 B15 - B19 Function H H Z Z Disconnect L H A0 - A4 Z Connect H L Z A15 - A19 Connect L L A0 - A4 A15 - A19 Connect 3OE 4OE B5 - B9 B10 - B14 Function H H Z Z Disconnect L H A5 - A9 Z Connect H L Z A10 - A14 Connect L L A5 - A9 A10 - A14 Connect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't care Z = High-Impedence Description 2 IDTQS32XVH384 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V Symbol VIH VIL Parameter Test Conditions Input HIGH Voltage Input LOW Voltage Min. Typ.(1) Max. Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 — — for Control Inputs VCC = 2.7V to 3.6V 2 — — Guaranteed Logic LOW VCC = 2.3V to 2.7V — — 0.7 for Control Inputs VCC = 2.7V to 3.6V — — 0.8 Unit V V IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC — — ±1 µA IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ 5V, Switches OFF — — ±1 µA I OFF Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V — — ±1 µA 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 = 25°C. 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 Ω IDTQS32XVH384 2.5V/3.3V 20-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 — 2 8 mA ∆ICC Power Supply Current(2,3) per Input HIGH VCC = Max., VIN = 3V, f = 0 per Control Input — — 30 µA ICCD Dynamic Power Supply Current per VCC = 3.3V, A and B Pins Open, Control Inputs Output Enable Control Input Toggling @ 50% Duty Cycle (4) See Typical ICCD vs Enable Frequency graph below 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 IDTQS32XVH384 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40°C to +85°C VCC = 2.5 ± 0.2V (1) Min. (4) tPLH tPHL tPZL Data Propagation Delay(2,3) Ax to/from Bx Switch Turn-On Delay tPZH tPLZ xOE to Ax/Bx Switch Turn-Off Delay tPHZ xOE to Ax/Bx fxOE Operating Frequency -Enable(2,5) Symbol Parameter VCC = 3.3 ± 0.3V (1) Max. Min. (4) Max. Unit 0.2 0.2 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 ≥ 1MΩ, no CLOAD). 5 IDTQS32XVH384 2.5V/3.3V 20-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 Ω Z = 100 Ω >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 IDTQS32XVH384 2.5V/3.3V 20-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 Ω (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 Ω 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 IDTQS32XVH384 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX Device Type XX Package Q1 Quarter Size Very Small Outline Package 32XVH384 2.5V/3.3V 20-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: [email protected] (408) 654-6459