IDTQS32861 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT IDTQS32861 FEATURES: DESCRIPTION: • • • • The QS32861 provides a set of ten high speed CMOS, TTL-compatible bus switches. The Bus Enable (BE) signal turns the switches on. The QS32861 includes internal 25Ω series termination resistors to reduce reflection noise in high speed applications. When closed, the switch acts as the source (series) termination for the driver connected to it. The QS32861 is characterized for operation at -40°C to +85°C. Enhanced N channel FET with no inherent diode to Vcc Near zero ground bounce Undershoot clamp diodes on all switch and control inputs Available in QSOP and SOIC packages APPLICATIONS: • • • • • • Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Power conservation Capacitance reduction and isolation Clock gating Bus isolation FUNCTIONAL BLOCK DIAGRAM A0 B0 A9 B9 BE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE MARCH 2002 1 c 2002 Integrated Device Technology, Inc. DSC-5757/2 IDTQS32861 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION NC A0 1 24 2 23 A1 3 22 Symbol Description Max Unit VTERM(2) Supply Voltage to Ground –0.5 to +7 V VCC VTERM(3) DC Switch Voltage Vs –0.5 to +7 V BE B0 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 = 85°C) TSTG Storage Temperature A2 4 21 B1 A3 5 20 B2 A4 6 19 B3 A5 7 18 B4 A6 8 17 B5 A7 9 16 B6 A8 10 15 B7 A9 11 14 B8 GND 12 13 B9 0.5 W –65 to +150 °C 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. CAPACITANCE (TA = +25°C, f = 1.0MHZ, VIN = 0V, VOUT = 0V) QSOP/ SOIC TOP VIEW Pins Typ. Max. (1) Unit Control Pins 3 5 pF Quickswitch Channels (Switch OFF) 5 7 pF NOTE: 1. This parameter is measured at characterization but not tested. PIN DESCRIPTION Pin Names BE Description Bus Enable A0 - A9 Bus A B0 - B9 Bus B FUNCTION TABLE(1) BE A0 - A9 2A, 2Y I/Os H Hi-Z Disconnect L B 0 - B9 Connect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedance 2 IDTQS32861 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT 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 — ±0.01 ±1 µA 0V ≤ VOUT ≤ VCC, Switches OFF — ±0.01 ±1 µA VCC = Min., VIN = 0V, ION = 30mA VCC = Min., VIN = 2.4V, ION =15mA VIN = VCC = 5V, IOUT = -5µA 15 18 3.7 20 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 IDTQS32861 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol Test Conditions(1) Parameter Typ(2) Max. Unit ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or Vcc, f = 0 0.2 3 µA ∆ICC Power Supply Current per Control Input HIGH VCC = Max., VIN = 3.4V(3), f = 0 — 2.5 mA ICCD Dynamic Power Supply Current per MHz(4) VCC = Max., A and B pins open — 0.25 mA/MHz BE Input Toggling at 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Typical values are at VCC = 5.0V, 25°C ambient. 3. Per TLL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to ∆Icc. 4. 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 pins 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 (2,4) tPHL A to B or B to A tPZH Switch Turn-on Delay tPZL BE to A or B tPHZ Switch Turn-off Delay (2) tPLZ BE to A or B Min. (1) Typ. Max. Unit — — 1.25(3) ns 1.5 — 7.5 ns 1.5 — 5.5 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 1.25ns 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 IDTQS32861 HIGH-SPEED CMOS 10-BIT BUS SWITCH WITH FLOW-THROUGH PINOUT INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX Device Type XX Package X Process Blank Industrial (-40°C to +85°C) SO Q Small Outline IC Quarter-Size Outline Package 32861 High Speed CMOS 10-Bit Bus Switch with Flow-Through Pinout 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 Ω VCC = Min, VIN = 0V, ION = 30mA 20 28 40 VCC = Min, VIN = 2.4V, ION = 15mA 20 35 48 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 5 for Tech Support: [email protected] (408) 654-6459