IDTQS32XVH245 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH FEATURES: IDTQS32XVH245 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 40-pin QVSOP package The QS32XVH245 HotSwitch is a high bandwidth, 16-bit bus switch. The QS32XVH245 has very low ON resistance, resulting in under 250ps propagation delay through the switch. The switches can be turned ON under the control of the LVTTL-compatible Output Enable (OEx) signal 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 QS32XVH245 ideal for high performance communications applications. The QS32XVH245 is characterized for operation from -40°C to +85°C.5°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 A1 A2 A3 A4 A5 A6 A7 B0 B1 B2 B3 B4 B5 B6 B7 A8 A9 A10 A11 A12 A13 A14 A15 B8 B9 B10 B11 B12 B13 B14 B15 OE1 OE2 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE c 2011 Integrated Device Technology, Inc. JUNE 2011 1 DSC-5594/13 IDTQS32XVH245 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION NC A0 1 A1 3 4 Symbol Description VTERM(2) SupplyVoltage to Ground Max Unit –0.5 to +4.6 V VTERM(3) DC Switch Voltage VS –0.5 to +5.5 V 40 39 VCC OE1 VTERM(3) DC Input Voltage VIN –0.5 to +5.5 V VAC AC Input Voltage (pulse width ≤20ns) –3 V 38 B0 IOUT DC Output Current (max. sink current/pin) 120 mA B1 TSTG Storage Temperature –65 to +150 °C 5 37 36 A4 6 35 B3 A5 7 34 B4 A6 8 33 B5 A7 9 32 B6 GND 10 31 B7 NC 11 30 VCC A8 12 29 OE2 A9 13 28 A10 14 27 A11 15 26 A12 16 25 B11 A13 17 24 B12 A14 18 23 B13 A15 19 22 B14 GND 20 21 B15 A2 A3 2 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 . B2 CAPACITANCE 0V) Symbol B8 (TA = +25°C, F = 1MHz, VIN = 0V, VOUT = (1) Parameter Typ. Max. Unit 3 5 pF B9 CIN Control Inputs B10 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 QVSOP TOP VIEW I/O Description OEx I Ax I/O Bus A Output Enable Bx I/O Bus B FUNCTION TABLE(1) Function OEx H Disconnect L Connect (Ax = Bx) NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level 2 IDTQS32XVH245 2.5V / 3.3V 16-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 IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC — — ±1 Unit V V μA IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ 5V, Switches OFF — — ±1 μA IOFF 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 Ω NOTE: 1. Typical values are at VCC = 3.3V and TA = 25°C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 14 RON (ohms) 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 VIN (Volts) 3 3.0 3.5 4.0 4.5 5.0 IDTQS32XVH245 2.5V / 3.3V 16-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 — 4 8 mA ΔICC 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 Output VCC = 3.3V, A and B Pins Open, Control Inputs See Typical ICCD vs Enable Frequency graph below Enable Control Input Toggling @ 50% Duty Cycle (4) 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 ΔIcc. 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 IDTQS32XVH245 2.5V / 3.3V 16-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) Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ fOEx Parameter Data Propagation Delay(2,3) Ax to/from Bx Switch Turn-On Delay OEx to Ax/Bx Switch Turn-Off Delay OEx 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 8 1.5 7 ns 1.5 7 1.5 6.5 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 OEx control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD). 5 IDTQS32XVH245 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS NFET 0 to +5V Vcc = 3.3V +6.5V CHARGE PUMP OE 0 to +5V DRIVER SINGLE HOT SWITCH Rail-to-Rail Switching PHY 3VH SWITCH 4.5VPP LOGIC SIDE 10Mbps to 100Mbps Z = 100 Ω Z = 100 Ω >100m 4.5VPP TWISTED PAIR LOGIC SIDE 2VPP Fast Ethernet Data Switching (LAN Switch) ZERO DOWN TIME SYSTEM PLUGGABLE CARD/ LIVE SYSTEM CARD I/O ON CARD LOGIC CONNECTOR QS32XVHXX CPU CARD I/O ON CARD LOGIC CONNECTOR QS32XVHXX RAM BUS Hot-Swapping 6 IDTQS32XVH245 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC = 3.3V ± 0.3V VCC = 2.5V ± 0.2V Unit VLOAD 6 2 x Vcc V VIH 3 Vcc V (1) (2) VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF SAME PHASE INPUT TRANSITION tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V VOH VT VOL VIH VT 0V OPPOSITE PHASE INPUT TRANSITION Propagation Delay VLOAD VCC 500Ω (1, 2) Pulse Generator VIN CONTROL INPUT GND tPZL VOUT D.U.T. RT DISABLE ENABLE Open OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL tPLZ VLOAD/2 VT tPHZ V T 0V VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V Test Circuits for All Outputs 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 IDTQS32XVH245 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION QS XXXXX XX X Device Type Package Process X Blank 8 Tube or Tray Tape and Reel Blank Industrial (-40°C to +85°C) Q2G 40-Pin QVSOP - Green 32XVH245 2.5V / 3.3V 16-Bit High Bandwidth Bus Switch Datasheet Document History 09/01/08 Pg. 4, 8 06/14/11 Pg. 8 Revise ICCQ Typ. and Max. Remove non green package version and updated the ordering information by removing the “IDT” notation. Updated ordering information to include tube or tray and tape & reel. CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 8 for Tech Support: [email protected]