IDTQS34X2245 HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH™ BUS SWITCHES FEATURES: • • • • • • • • DESCRIPTION: Enhanced N channel FET with no inherent diode to Vcc Bidirectional switches connect inputs to outputs Zero propagation delay, zero ground bounce Ω resistors for low noise Internal 25Ω Flow-through pinout for easy layout Undershoot clamp diodes on all switch and control inputs TTL-compatible control inputs Available in 80-pin MilliPaQ™ package The QS34X2245 is a member of the MultiWidthTM family of QuickSwitch devices and provides a set of 32 high-speed CMOS compatible bus switches in a flow-through pinout. This device is available in the MillipaQ package, the worlds first small outline 32-bit solution. The low ON-resistance of the QS34X2245 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. Internal 25Ω resistors reduce reflection noise in high-speed applications. When Output Enable (OEn) is low, the switches are turned on, connecting bus A to bus B. When OEn is high, the switches are turned off. This device is ideally suited for 32/64 bit applications where board space is at a premium. QuickSwitch devices provide speeds an order of magnitude faster than conventional logic devices. The QS34X2245 is characterized for operation at -40°C to +85°C. APPLICATIONS: • • • • • • • IDTQS34X2245 Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Bus switching and isolation Power conservation Logic replacement (data processing) Capacitance isolation Clock gating FUNCTIONAL BLOCK DIAGRAM A0 A1 A2 A3 A4 A5 A6 A7 A16 A17 A18 A19 A20 A21 A22 A23 OE3 OE1 B0 B1 B2 B3 B4 B5 B6 B7 B16 B17 B18 B19 B20 B21 B22 B23 A8 A9 A10 A11 A12 A13 A14 A15 A24 A25 A26 A27 A28 A29 A30 A31 OE4 OE2 B8 B9 B10 B11 B12 B13 B14 B15 B24 B25 B26 B27 B28 B29 B30 B31 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE c 2012 Integrated Device Technology, Inc. AUGUST 2012 1 DSC-5556/5 IDTQS34X2245 HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES PIN CONFIGURATION NC A0 ABSOLUTE MAXIMUM RATINGS(1) 80 1 79 2 INDUSTRIAL TEMPERATURE RANGE Symbol Description Max Unit VCC VTERM(2) Supply Voltage to Ground –0.5 to +7 V OE1 VTERM(3) DC Switch Voltage Vs –0.5 to +7 V VTERM(3) DC Input Voltage VIN –0.5 to +7 V VAC AC Input Voltage (pulse width ≤ 20ns) –3 V IOUT DC Output Current 120 mA PMAX Maximum Power Dissipation (TA =70°C) 1.4 W TSTG Storage Temperature –65 to +150 °C 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 GND 10 71 B7 NC 11 70 VCC A8 12 69 OE2 NOTE: 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. A9 13 68 B8 A10 14 67 B9 A11 15 66 B10 A12 16 65 B11 A13 17 64 B12 A14 18 63 B13 A15 19 62 B14 GND 20 61 B15 Pins Typ. Max.(1) Unit NC 21 60 VCC Control Pins 3 4 pF A16 22 59 OE3 7 8 pF A17 23 58 B16 A18 24 57 B17 A19 25 56 B18 A20 26 55 B19 A21 27 54 B20 A22 28 53 B21 A23 29 52 B22 GND 30 51 B23 Pin Names CAPACITANCE (TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V) Quickswitch Channels (Switch OFF) NOTE: 1. This parameter is measured at characterization but not tested. PIN DESCRIPTION Description Output Enable NC 31 50 VCC OEn A24 32 49 OE4 An Data I/Os A25 33 48 B24 Bn Data I/Os A26 34 47 B25 A27 35 46 B26 A28 36 45 B27 A29 37 44 B28 OEn Outputs A30 38 43 B29 H Disconnected A31 39 42 B30 L An = Bn GND 40 41 B31 MILLIPAQ TOP VIEW FUNCTION TABLE(1) NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level 2 IDTQS34X2245 HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5% Symbol Parameter Test Conditions VIH Input HIGH Level Guaranteed Logic HIGH for Control Pins VIL Input LOW Level Guaranteed Logic LOW for Control Pins IIN Input LeakageCurrent (Control Inputs)(2) 0V ≤ VIN ≤ VCC IOZ Off-State Output Current (Hi-Z) Switch ON Resistance RON(3) VP Pass Voltage(2) Min. Typ.(1) Max. Unit 2 — — V — — 0.8 V — — ±1 μA 0V ≤ VOUT ≤ VCC, Switches OFF — — ±1 μA VCC = Min., VIN = 0V, ION = 30mA VCC = Min., VIN = 2.4V, ION =15mA VIN = VCC = 5V, IOUT = -5μA 18 18 3.7 23 25 4 35 40 4.2 Ω NOTES: 1. Typical values are at VCC = 5.0V, TA = 25°C. 2. Pass Voltage is guaranteed but not production tested. 3. ROUT changed on March 8, 2002. See rear page for more information. TYPICAL ON RESISTANCE vs VIN AT VCC = 5V 80 R ON (ohms) 70 60 50 40 30 20 10 0 0.0 0.5 1.0 1.5 2.0 V IN (Volts) 3 2.5 3.0 3.5 V IDTQS34X2245 HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol Test Conditions(1) Parameter Max. Unit ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or Vcc, f = 0 12 μA ΔICC Power Supply Current per Control Input HIGH (2) VCC = Max., VIN = 3.4V, f = 0 1.5 mA ICCD Dynamic Power Supply Current per MHz(3) VCC = Max., A and B pins open 0.25 mA/MHz Control Inputs Toggling at 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per TLL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to ΔIcc. 3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested. SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40°C to +85°C, VCC = 5.0V ± 5%; CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted. Symbol Parameter tPLH Data Propagation Delay (1,2) tPHL An to/from Bn tPZL Switch Turn-on Delay tPZH OE to An/Bn tPLZ Switch Turn-off Delay (1) tPHZ OE to An/Bn Min. (1) Typ. Max. Unit — — 1.25 ns 0.5 — 6.6 ns 0.5 — 5.2 ns NOTES: 1. Minimums are guaranteed but not production tested. 2. 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 1.25ns for 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 IDTQS34X2245 HIGH-SPEED CMOS QUICKSWITCH 32-BIT MULTIWIDTH BUS SWITCHES INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION QS XXXXXX Device Type XX Package X Process X Blank 8 Tube or Tray Tape and Reel Blank Industrial (-40°C to +85°C) Q3G 80-pin Millipaq - Green 34X2245 High-Speed CMOS Quickswitch 32-Bit Multiwidth Bus Switches As per PCN L0201-02, the Output Resistance (RON) specifications have changed as of March 8, 2002. The original specifications were: Parameter RON Description Min. Typ. Max. Unit VCC = Min, VIN = 0V, ION = 30mA 20 28 40 Ω VCC = Min, VIN = 2.4V, ION = 15mA 20 35 48 Datasheet Document History 10/23/08 08/13/12 Pg. 5 Pg. 5 Updated the ordering information by removing the "IDT" notation. Updated the ordering information by removing non RoHS part and by adding Tape and Reel information. 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 5 for Tech Support: [email protected]