IDTQS34XVH2245 2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS 2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH FEATURES: IDTQS34XVH2245 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 • 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 • LVTTL-compatible control Inputs • Undershoot Clamp Diodes on all switch and control Inputs • Low I/O capacitance, 4pF typical Ω resistors for low noise and line matching • 25Ω • Available in 80-pin QVSOP package The QS34XVH2245 is a high bandwidth, 32-bit bus switch. The QS34XVH2245 with 25Ω resistance and 1.35ns propagation delay is ideal for line matching and low noise environments. The switches can be turned ON under the control of individual LVTTL-compatible Output Enable (OEx) 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 small propagation delay, high OFF impedance, and over-voltage tolerance makes the QS34XVH2245 ideal for high performance communications applications. The QS34XVH2245 is characterized for operation from -40°C to +85°C. APPLICATIONS: • • • • Hot-swapping Low distortion analog switch Replaces mechanical relay ATM 25/155 switching FUNCTIONAL BLOCK DIAGRAM A0 A1 A2 A3 A4 A5 A6 A7 A 16 A 17 A18 A 19 A 20 A 21 A 22 A23 B7 B 16 B 17 B18 B 19 B 20 B 21 B 22 B23 A 13 A14 A 15 A 24 A 25 A26 A 27 A 28 A 29 A 30 A31 B 24 B 25 B 26 B27 B 28 B29 B 31 OE 1 OE3 B0 B1 A8 A9 B2 B3 B4 A 10 A11 A12 B5 B6 OE 2 OE4 B8 B9 B 10 B11 B12 B 13 B14 B 15 B30 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE MARCH 2003 1 c 2003 Integrated Device Technology, Inc. DSC-5592/11 IDTQS34XVH2245 2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION NC 1 Symbol 80 79 OE1 A1 3 78 B0 A2 4 77 B1 A3 5 76 B2 A4 6 75 B3 A5 7 74 B4 A6 8 73 B5 A7 9 72 B6 71 B7 70 Vcc 69 OE2 68 B8 67 B9 66 B10 65 NC 11 A8 12 A9 13 A10 14 A11 15 A12 16 A13 17 A14 18 A15 19 GND NC 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 Vcc 2 10 Unit VTERM(3) A0 GND Max VTERM(2) 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 = +25°C, F = 1MHz, VIN = 0V, VOUT = 0V) Parameter(1) Symbol Typ. Max. Unit 3 5 pF CIN Control Inputs B11 CI/O Quickswitch Channels (Switch OFF) 4 6 pF 64 B12 CI/O Quickswitch Channels (Switch ON) 8 12 pF 63 B13 62 B14 20 61 B15 21 60 Vcc A16 22 59 OE3 A17 23 58 B16 A18 24 57 B17 Pin Names A19 25 56 B18 OEx I Ax I/O Bus A Bx I/O Bus B A20 26 55 B19 A21 27 54 B20 A22 28 53 B21 A23 29 52 B22 GND 30 51 B23 NC 31 50 Vcc A24 32 49 OE4 A25 33 48 B24 A26 34 47 B25 A27 35 46 B26 A28 36 45 B27 A29 37 44 B28 A30 38 43 B29 A31 39 42 B30 GND 40 41 B31 NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION I/O Description Output Enable FUNCTION TABLE(1) Function OEx H Disconnected L Connect (Ax = Bx) NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level QVSOP TOP VIEW 2 IDTQS34XVH2245 2.5V / 3.3V 32-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 18 27 39 RON Switch ON Resistance Typical at VCC = 2.5V VIN = 1.7V ION = 15mA 18 28 41 VCC = 3V VIN = 0V ION = 30mA 18 25 38 VIN = 2.4V ION = 15mA 18 26 40 Ω NOTE: 1. Typical values are at VCC = 3.3V and TA = 25°C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 40 35 30 R ON (ohms) 25 20 15 10 5 0 0 0.5 1 1.5 2 2.5 VIN (Volts) 3 3 3.5 4 4.5 5 IDTQS34XVH2245 2.5V / 3.3V 32-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 12 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 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 ∆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 IDTQS34XVH2245 2.5V / 3.3V 32-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. 0.9 Min. (4) Max. 1.35 Unit ns 1.5 9 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 1.35ns 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 IDTQS34XVH2245 2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS NFET 0 to +5V Vcc = 3.3V OE 0 to +5V +6.5V CH AR GE PUMP DR IVER SINGLE HOT SW ITCH Rail-to-Rail Switching ZER O DOW N TIME SYS TEM PLU G GABLE CAR D/ LIV E SYSTEM CARD I/O ON CAR D LO GIC CON NEC TO R QS3VH XXX CARD I/O ON CAR D LO GIC C ONNECTOR QS3VH XXX C PU RAM BUS Hot-Swapping 6 IDTQS34XVH2245 2.5V / 3.3V 32-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 SAM E PHASE INPUT TRANSITION 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 tPLZ V IH VT 0V V LOAD/2 V LO A D /2 VT VOL VOL t PHZ + V LZ VT VOH V O H -V H Z 0V 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 IDTQS34XVH2245 2.5V / 3.3V 32-BIT HIGH BANDWIDTH BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX Device Type XX Package Q3 80-Pin QVSOP 34XVH2245 2.5V / 3.3V 32-Bit High Bandwidth Bus Switch DATA SHEET DOCUMENT HISTORY 8/6/2002 Updated according to PCN Logic-0206-11 3/3/2003 Changed Icc limits 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