IDTQS316209 HIGH-SPEED CMOS 18-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS HIGH-SPEED CMOS 18-BIT BUS EXCHANGE SWITCH FEATURES: − − − − − − DESCRIPTION: Enhanced N channel FET with no inherent diode to Vcc 5Ω bidirectional switches connect inputs to outputs Zero propagation delay, zero ground bounce TTL-compatible input and output levels Undershoot clamp diodes on all switch and control pins Available in 48-pin SSOP and TSSOP Packages The QS316209 provides a set of 18 high-speed CMOS TTL-compatible bus-exchange switches. The low ON resistance of the QS316209 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. This device operates as an 18-bit bus switch or a 9-bit bus exchanger, which provides data exchanging between the four signals through the data-select (S0-S2) terminals. APPLICATIONS − − − − − IDTQS316209 The QS316209 is characterized for operation at -40°C to +85°C. Resource sharing Crossbar switching Hot-swapping, hot-docking Bus isolation Voltage translation (5V to 3.3V) FUNCTIONAL BLOCK DIAGRAM One of Nine Channels 1A1 1B1 1A2 1B2 Flow Control S0 S1 S2 INDUSTRIAL TEMPERATURE RANGE NOVEMBER 1999 1 c 1999 Integrated Device Technology, Inc. DSC-5564/- IDTQS316209 HIGH-SPEED CMOS 18-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS (1) PIN CONFIGURATION Symbol Description Max. Unit S0 1 48 S1 VTERM(2) Supply Voltage to Ground – 0.5 to +7 V 1A1 2 47 S2 VTERM(3) DC Switch Voltage VS – 0.5 to +7 V 1A2 3 46 1B1 VTERM(3) DC Input Voltage VIN – 0.5 to +7 V G ND 4 45 1B2 VAC AC Input Voltage (pulse width ≤20ns) -3 V 2A1 5 44 2B1 DC Output Current 120 mA 6 43 IOUT 2A2 2B2 V CC 7 42 PMAX Maximum Power Dissipation (TA = 85°C) 0.85 W G ND 3A1 8 41 3B1 TSTG Storage Temperature – 65 to +150 °C 3A2 9 40 3B2 10 39 G ND 4A1 11 38 4B1 4A2 12 37 4B2 36 5B1 G ND SO 48-1 SO 48-2 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. 5A1 13 5A2 14 35 5B2 G ND 15 34 G ND 6A1 16 33 6B1 6A2 17 32 6B2 18 31 CAPACITANCE 7A1 7B1 (TA = +25OC, f = 1.0MHz, VIN = 0V, VOUT = 0V) 7A2 19 30 7B2 G ND 20 29 G ND 8A1 21 28 8B1 8A2 22 27 8B2 9A1 23 26 9B1 9A2 24 25 9B2 SSOP/ TSSOP TOP VIEW Pins Control Inputs Typ. 4 Max. (1) 5 Unit pF Quickswitch Channels (Switch OFF) 7.5 9 pF NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION Pin Names 1An - 9An I/O I/O Description Bus A 1Bn - 9Bn I/O Bus B S0 - S2 I Data Select FUNCTION TABLE(1) S2 S1 L L L Z Z Disconnect L L H xB1 Z xA1 to xB1 L H L xB2 Z xA1 to xB2 L H H Z xB1 xA2 to xB1 H L L Z xB2 xA2 to xB2 H L H Z Z Disconnect H H L xB1 xB2 xA1 to xB1, xA2 to xB2 H H H xB2 xB1 xA1 to xB2, xA2 to xB1 S0 xA1 NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedence 2 xA2 Function IDTQS316209 HIGH-SPEED CMOS 18-BIT BUS EXCHANGE SWITCH 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 ± 10% Symbol VIH Parameter Input HIGH Voltage Test Conditions Guaranteed Logic HIGH for Control Pins Min. 2 Typ.(1) — Max. — Unit V VIL Input LOW Voltage Guaranteed Logic LOW for Control Pins — — 0.8 V IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ Vcc, Control Inputs — 0.01 ±1 µA IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ Vcc, Switches OFF — 0.01 ±1 µA RON Switch ON Resistance (2) Vcc = Min., VIN = 0V, ION = 30mA — 5 7 Ω RON Switch ON Resistance (2) Vcc = Min., VIN = 2.4V, ION = 15mA — 10 14 Ω VP Pass Voltage (3) Vcc = 5V, IOUT = -5µA 3.7 4 4.2 V NOTES: 1. Typical values are at VCC = 5.0V, TA = 25°C. 2. Max value of RON is guaranteed but not production tested. 3. Pass voltage is guaranteed but not production tested. TYPICAL ON RESISTANCE vs VIN AT VCC = 5V 16 R ON (ohms) 14 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 V IN (Volts) 3 2.5 3.0 3.5 IDTQS316209 HIGH-SPEED CMOS 18-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICCQ Parameter Quiescent Power Supply Current Test Conditions(1) VCC = Max., VIN = GND or Vcc, f = 0 ∆ICC Power Supply Current per Control Input HIGH (2) ICCD Dynamic Power Supply Current per MHz(3) Max. 3 Unit µA VCC = Max., VIN = 3.4V, f = 0 1.5 mA VCC = Max., A and B pins open Control Input Toggling at 50% Duty Cycle 0.25 mA/MHz 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 ∆Icc. 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 ± 10% CLOAD = 50pF, RLOAD = 500Ω unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Parameter Data Propagation Delay (2,4) xAn to xBn, xBn to xAn Switch Turn-on Delay Sn to xAn, xBn Switch Turn-off Delay (2) Sn to xAn, xBn Min. (1) Typ. — — 1.5 1.5 Max. 0.25 (3) Unit ns — 6.5 ns — 6.2 ns NOTES: 1. Minimums are guaranteed but not production tested. 2. This parameter is guaranteed but not production tested. 3. The time constant for the switch alone is of the order of 0.25ns for CL = 50pF. 4. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. 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 IDTQS316209 HIGH-SPEED CMOS 18-BIT BUS EXCHANGE SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX XX Device Type Package X Process Blank Industrial (-40°C to +85°C ) PV PA Shrink Small Outline Package (SO48-1) Thin Shrink Small outline (SO48-2) 316209 High Speed CMOS 18-Bit Bus-Exchange Switch 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* *To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2. 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