IDTQS3VH16244 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: IDTQS3VH16244 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 500 MHz • LVTTL-compatible control Inputs • Undershoot Clamp Diodes on all switch and control Inputs • Low I/O capacitance, 4pF typical • Available in TSSOP package The QS3VH16244 HotSwitch is a 16-bit high band bus switch. The QS3VH16244 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 xG signal for bidirectional data flow with no added delay or ground bounce. In the OFF and ON states, the switches are 5V-tolerant. In the OFF state, the switches offer very high impedance at the terminals. The combination of near-zero propagation delay, high OFF impedance, and over-voltage tolerance makes the QS3VH16244 ideal for high performance communications applications. The QS3VH16244 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 1G 2G 1A1 1Y1 2A1 2Y1 1A2 1Y2 2A2 2Y2 1A3 1Y3 2A3 2Y3 1A4 1Y4 2A4 2Y4 3G 4G 3A1 3Y1 4A1 4Y1 3A2 3Y2 4A2 4Y2 3A3 3Y3 4A3 4Y3 3A4 3Y4 4A4 4Y4 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE c 2014 Integrated Device Technology, Inc. FEBRUARY 2014 1 DSC-5877/8 IDTQS3VH16244 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol Description Max. Unit VTERM(2) Supply Voltage to Ground – 0.5 to 4.6 V V 1G 1 48 2G VTERM(3) DC Switch Voltage VS – 0.5 to 5.5 1Y1 2 47 1A1 VTERM(3) DC Input Voltage VIN – 0.5 to 5.5 V 1Y2 3 46 1A2 VAC AC Input Voltage (pulse width ≤20ns) –3 V GND 1Y3 4 45 GND IOUT DC Output Current (max. current/pin) 120 mA TSTG Storage Temperature -65 to +150 °C 5 44 1A3 1Y4 6 43 1A4 VCC 7 42 VCC 2Y1 8 41 2A1 2Y2 9 40 2A2 GND 2Y3 10 39 GND 11 38 2A3 2Y4 12 37 2A4 3Y1 13 36 3A1 3Y2 14 35 3A2 GND 3Y3 15 34 GND 16 33 3A3 3Y4 17 32 3A4 VCC 4Y1 18 31 VCC 19 30 4A1 4Y2 20 29 4A2 GND 4Y3 21 28 GND xG Output Enable 22 27 4A3 xAx Data I/Os 4Y4 23 26 4A4 xYx Data I/Os 25 3G 4G 24 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 o (TA = +25 C, f = 1MHz, VIN = 0V, VOUT = 0V) Symbol Parameter(1) Typ. Max. Unit CIN Control Inputs 3 5 pF 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 Description TSSOP TOP VIEW FUNCTION TABLE(1) xG Outputs H Disconnected L xAx = xYx NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level 2 IDTQS3VH16244 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 Parameter Test Conditions Input HIGH Voltage VIL Input LOW Voltage IIN Input Leakage Current (Control Inputs) I OZ IOFF Typ.(1) Max. Unit V Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 — — for Control Inputs VCC = 2.7V to 3.6V 2 — — Guaranteed Logic HIGH VCC = 2.3V to 2.7V — — 0.7 for Control Inputs VCC = 2.7V to 3.6V — — 0.8 — — ±1 μA Off-State Current (Hi-Z) — — ±1 μA Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V — — ±1 μA ION = 30mA — 6 8 (Typ. 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 Switch ON Resistance VIN = 0V NOTE: 1. Typical values are at VCC = 3.3V and TA = 25°C, unless otherwise noted. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 R ON (ohms) V ≤ VCC 0V ≤ VOUT ≤ 5V, Switches OFF 0V ≤ VIN VCC = 2.3V RON Min. 14 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 IDTQS3VH16244 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Parameter Test Conditions(1) ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC, f = 0 ΔICC Power Supply Current ICCD Dynamic Power Supply Current(4) Symbol (2,3) per Input HIGH VCC = Max., VIN = 3V, f = 0 per Control Input VCC = 3.3V, A and Y Pins Open, Control Inputs Min. Typ. Max. Unit — 1.5 3 mA — — 30 μA 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 Y 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 Y 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 20 18 16 ICCD (mA) 14 12 10 8 6 4 2 0 0 2 4 6 8 10 ENABLE FREQUENCY (MHZ) 4 12 14 16 18 20 IDTQS3VH16244 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 tPZH tPZL tPHZ tPLZ fxG Parameter Data Propagation Delay(2,3) xAx to/from xYx Switch Turn-On Delay xG to xAx/xYx Switch Turn-Off Delay xG to xAx/xYx Operating Frequency - xG (2,5) Min. (4) ⎯ VCC = 3.3 ± 0.3V (1) Max. Min. (4) Max. Unit 0.2 ⎯ 0.2 ns 1.5 8 1.5 8 ns 1.5 7.5 1.5 7.5 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 xG control input (pass voltage > VCC, VIN = 5V, RLOAD > 1MΩ, no CLOAD). 5 IDTQS3VH16244 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 10Mbps to 100Mbps Z = 100 Ω LOGIC SIDE 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 QS3VHXXX CPU CARD I/O ON CARD LOGIC CONNECTOR QS3VHXXX RAM Hot Swapping 6 BUS IDTQS3VH16244 2.5V / 3.3V 16-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 SAME PHASE INPUT TRANSITION VIH 3 Vcc V OUTPUT VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF tPLH tPHL tPLH tPHL VIH VT 0V VOH VT VOL VIH VT 0V OPPOSITE PHASE INPUT TRANSITION Propagation Delay VLOAD VCC 500Ω Pulse(1, 2) 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 Test Circuits for All Outputs SWITCH POSITION tPLZ/tPZL VLOAD tPHZ/tPZH GND tPD Open tPHZ VT 0V Enable and Disable Times NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2ns; tR ≤ 2ns. Switch VLOAD/2 VT VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. Test tPLZ VIH VT 0V 7 IDTQS3VH16244 2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION QS XXXXX XX Package Device Type X Blank 8 Tube or Tray Tape and Reel PAG Thin Shrink Small Outline Package-TSSOP Green 3VH16244 2.5V / 3.3V 16-Bit High Bandwidth Bus Switch DATASHEET DOCUMENT HISTORY 02/24/2014 pg. 1 and 8. 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]