QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS
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QS3383, QS32383
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS 10-Bit Exchange Switches
DESCRIPTION
QS3383 QS32383
Enhanced channel with inherent diode bidirectional switches connect inputs outputs Zero propagation delay (QS3383), zero ground bounce Undershoot clamp diodes switch control pins QS32383 version noise exchange allows nibble swap Available SOIC (SO), QSOP, HQSOP
APPLICATIONS
Hot-swapping, hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note AN-11) Resource sharing Crossbar switching
QS3383 QS32383 provide high-speed CMOS TTL-compatible exchange switches. resistance QS3383 allows inputs connected outputs without adding propagation delay without generating additional ground bounce noise. Enable (BE) signal turns switches Exchange (BX) signal provides nibble swap pairs signals. This exchange configuration allows byte swapping buses systems. also used 5-wide 2-to-1 multiplexer create delay barrel shifters, etc. QS32383 adds internal resistor reduce reflection noise high-speed applications. When switch closed, acts source termination driver connected
Figure Functional Block Diagram
MDSL-00031-03 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS3383, QS32383 Table Description
Name A0-A4, B0-B4 C0-C4, D0-D4 Function Buses Buses Switch Enable Exchange
Figure Configuration (All Pins View)
SOIC (SO), QSOP, HQSOP
Table Function Table
A0-A4 Hi-Z C0-C4 D0-D4 B0-B4 Hi-Z D0-D4 C0-C4 Function Disconnect Connect Exchange
Table Absolute Maximum Ratings
Supply Voltage Ground -0.5V +7.0V Switch Voltage -0.5V +7.0V Input Voltage -0.5V +7.0V Input Voltage (for pulse width 20ns) -3.0V Output Current Max. Sink Current/Pin 120mA Maximum Power Dissipation watts TSTG Storage Temperature -65° +150°C
Note: ABSOLUTE MAXIMUM CONTINUOUS RATINGS those values beyond which damage device occur. Exposure these conditions conditions beyond those indicated adversely affect device reliability. Functional operation under absolute-maximum conditions implied.
Table Capacitance
25°C, 1MHz, VOUT SOIC, QSOP HQSOP
Note: Capacitance guaranteed, production tested. total capacitance while switch please Section under "Input Switch Capacitance."
Pins Control Inputs QuickSwitch Channels (Switch OFF)
Unit
QUALITY SEMICONDUCTOR, INC.
MDSL-00031-03 JULY 1997
QS3383, QS32383 Table Electrical Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V Symbol Parameter Input HIGH Voltage Input Voltage Input Leakage Current (Control Inputs) Off-State Current (Hi-Z) Switch Resistance(2) Military: -55°C 125°C, 5.0V Typ(1) 0.01 0.01 Unit
Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs VOUT VCC, Switches Min., 0.0V 30mA Min., 2.4V 15mA 3383 (Com) 3383 (Mil) 32383 (Com) 32383 (Mil) 3383 (Com) 3383 (Mil) 32383 (Com) 32383 (Mil)
Switch Resistance(2)
Pass Voltage(3)
IOUT -5µA
Notes: Typical values indicate 5.0V 25°C. diagram explaining procedure measurement, please section under Electrical Characteristics." Max. value guaranteed, production tested. Pass Voltage guaranteed, production tested.
Figure Typical Resistance 5.0V (QS3383)
(ohms)
(Volts)
Note: QS32383, shown.
MDSL-00031-03 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS3383, QS32383 Table Power Supply Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V Symbol ICCQ QCCD
Notes: conditions shown Min. Max., appropriate values specified under specifications. driven input (VIN 3.4V, control inputs only). pins contribute ICC. This current applies control inputs only represents current required switch internal capacitance specified frequency. inputs generate significant currents they transition. This parameter guaranteed, production tested.
Military: -55°C 125°C, 5.0V 0.25 Unit
Parameter Quiescent Power Supply Current Power Supply Current Input HIGH(2) Dynamic Power Supply Current MHz(3)
Test Conditions(1) Max., VCC, Max., 3.4V, Control Input Max., Pins Open, Control Inputs Toggling Duty Cycle
Table Switching Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V CLOAD 50pF, RLOAD unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Description(1) Data Propagation Delay(2,3) AiBi CiDi, CiDi AiBi Switch Turn-on Delay Switch Turn-off Delay(2) Switch Multiplex Delay
Military: -55°C 125°C, 5.0V QS3383 QS32383 0.25(3) 0.25(3) 1.25(3) 1.50(3)
Unit
Notes: Test Circuit Waveforms. Minimums guaranteed, production tested. This parameter guaranteed, production tested. time constant switch alone order 0.25ns QS3383 1.25ns QS32383 50pF. switch contributes propagation delay other than delay resistance switch load capacitance. Since this delay much smaller than rise/fall times typical driving signals, adds very little propagation delay system. Propagation delay switch when used system determined driving circuit driving side switch interaction with load driven side.
QUALITY SEMICONDUCTOR, INC.
MDSL-00031-03 JULY 1997
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