IDTQS3384 HIGH-SPEED CMOS 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS HIGH-SPEED CMOS 10-BIT BUS SWITCH IDTQS3384 FEATURES: DESCRIPTION: − − − − − − The QS3384 provides a set of ten high-speed CMOS, TTL-compatible bus switches. The low ON resistance of QS3384 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce. Two banks of 5 switches are controlled by independent Bus Enable (BE) signals. Enhanced N channel FET with no inherent diode to Vcc 5Ω bidirectional switches connect inputs to outputs Zero propagation delay, zero ground bounce Undershoot clamp diodes on all switch and control pins Two enables control five bits each Available in SOIC, QSOP, and TSSOP Packages The QS3384 is characterized for operation at -40°C to +85°C. APPLICATIONS − − − − − − Hot-swapping, hot-docking Voltage translation (5V to 3.3V) Power conservation Capacitance reduction and isolation Bus isolation Clock gating FUNCTIONAL BLOCK DIAGRAM A0 B0 A4 B4 A5 B5 A9 B9 BEA BEB INDUSTRIAL TEMPERATURE RANGE FEBRUARY 2000 1 c 1999 Integrated Device Technology, Inc. DSC-5758/- IDTQS3384 HIGH-SPEED CMOS 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS Symbol VTERM(2) Description Supply Voltage to Ground Max. – 0.5 to +7 Unit V VTERM(3) DC Switch Voltage VS – 0.5 to +7 V VTERM(3) DC Input Voltage VIN – 0.5 to +7 V -3 V 120 mA BEA 1 24 V CC B0 2 23 B9 A0 3 22 A9 VAC AC Input Voltage (pulse width ≤20ns) A1 4 21 A8 IOUT DC Output Current B1 5 20 B8 PMAX Maximum Power Dissipation (TA = 85°C) TSTG Storage Temperature SO24-2 SO24-8 SO24-9 19 B7 18 A7 8 17 A6 B3 9 16 B6 B4 10 15 B5 A4 11 14 A5 G ND 12 13 BEB B2 6 A2 7 A3 (1) 0.5 W – 65 to +150 °C 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 = +25OC, f = 1.0MHz, VIN = 0V, VOUT = 0V) SOIC/ QSOP/ TSSOP TOP VIEW Pins Control Inputs Typ. 3 Max. (1) 5 Unit pF Quickswitch Channels (Switch OFF) 5 7 pF NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION Pin Names A0 - A9 I/O I/O Bus A Description B0 - B9 I/O Bus B BEA, BEB I Bus Switch Enable FUNCTION TABLE(1) BEA BEB B0 - B4 Function H H Hi-Z Hi-Z Disconnect L H A0 - A4 Hi-Z Connect H L Hi-Z A5 - A9 Connect L L A0 - A4 A5 - A9 Connect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedence 2 B5 - B9 IDTQS3384 HIGH-SPEED CMOS 10-BIT 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 = 5.0V ± 5% 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 — ±0.01 ±1 µA IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ Vcc, Switches OFF — ±0.01 ±1 µA RON Switch ON Resistance Vcc = Min., VIN = 0V, ION = 30mA — 5 7 Ω RON Switch ON Resistance Vcc = Min., VIN = 2.4V, ION = 15mA — 10 15 Ω VP Pass Voltage (2) VIN = VCC = 5V, IOUT = -5µA 3.7 4 4.2 V NOTES: 1. Typical values are at VCC = 5.0V, TA = 25°C. 2. 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 IDTQS3384 HIGH-SPEED CMOS 10-BIT BUS 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) VCC = Max., VIN = 3.4V, f = 0 2.5 mA ICCD Dynamic Power Supply Current per MHz(3) VCC = Max., A and B pins open Control Input Toggling at 50% Duty Cycle 0.25 mA/MHz Max. 1.5 Unit mA 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 Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40°C to +85°C, VCC = 5.0V ± 5% CLOAD = 50pF, RLOAD = 500Ω Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Parameter Data Propagation Delay (2,4) Ax to Bx, Bx to Ax Switch Turn-on Delay BEA, BEB to Ax, Bx Switch Turn-off Delay (2) BEA, BEB to Ax, Bx Min. (1) Typ. — — 1.5 — 6.5 ns 1.5 — 5.5 ns Max. 0.25 (3) Unit 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 IDTQS3384 HIGH-SPEED CMOS 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX XX Device Type Package SO Q PA Small Outline IC (SO24-2) Quarter Size Outline Package (SO24-8) Thin Small Size Outline Package (SO24-9) 3384 High Speed CMOS 10-Bit Bus 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. The IDT logo, QuickSwitch, and SynchroSwitch are registered trademarks of Integrated Device Technology, Inc. 5