QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS

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QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS

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QS32XR384
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS 20-Bit Resistance Switches
DESCRIPTION
QS32XR384
Enhanced channel with inherent diode bidirectional switches connect inputs outputs Zero propagation delay, zero ground bounce Undershoot clamp diodes switch control pins enables control five bits each Available 48-pin QVSOP (Q1)
QS32XR384 provides sets high-speed CMOS TTL-compatible switches. Four banks switches controlled independent Enable (BE) signals. very resistance (2.5) QS32XR384 allows inputs connected without adding propagation delay without generating additional ground bounce noise. QS32XR384 ideal switching digital buses, well plug buffering 3.3V conversion.
APPLICATIONS
Hot-swapping hot-docking (Application Note AN-13) resistance Compact applications Voltage translation 3.3V; Application Note AN-11) Power conservation Capacitance reduction isolation isolation Clock gating
Figure Functional Block Diagram
MDSL-00344-00 NOVEMBER 1998
QUALITY SEMICONDUCTOR, INC.
QS32XR384 Table Description
Name A0-A19 B0-B19 Function Enable, Enable, 15-19 Enable, Enable, 10-14
Figure Configuration (All Pins View)
SOIC, QSOP
Table Function Table
B0-B4 Hi-Z A0-A4 Hi-Z A0-A4 B5-B9 Hi-Z A5-A9 Hi-Z A5-A9 B15-B19 Hi-Z Hi-Z A15-A19 A15-A19 B10-B14 Hi-Z Hi-Z A10-A14 A10-A14 Function Disconnect Connect Connect Connect Function Disconnect Connect Connect Connect
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 Unit
Note: Capacitance guaranteed production tested. total capacitance while switch please Section under "Input Switch Capacitance."
Pins Control Inputs QuickSwitch Channels (Switch OFF)
QUALITY SEMICONDUCTOR, INC.
MDSL-00344-00 NOVEMBER 1998
QS32XR384 Table Electrical Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V ±10% Symbol Parameter Input HIGH Voltage Input Voltage Input Leakage Current (Control Inputs) Off-State Current (Hi-Z) Switch Resistance
Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs VOUT VCC, Switches Min., 0.0V, 30mA Min., 2.4V, 15mA IOUT -5µA
Typ(1) 0.01
Unit
0.01
Switch Resistance(2) Pass Voltage(3)
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
(ohms)
(Volts)
MDSL-00344-00 NOVEMBER 1998
QUALITY SEMICONDUCTOR, INC.
QS32XR384 Table Power Supply Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V ±10% Symbol ICCQ QCCD 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, Max., Pins Open, Control Input Toggling Duty Cycle 0.25 Unit
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 characterization, production tested.
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(2,4) Switch Turn-on Delay BEA, Switch Turn-off Delay(2) BEA,
Unit
0.12(3)
Notes: Test Circuit Waveforms. Minimums guaranteed production tested. This parameter guaranteed production tested. time constant switch alone order 0.12ns QS32XR384 50pF. switch contributes propagation delay other than delay resistance switch load capacitance. Since this time constant 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-00344-00 NOVEMBER 1998

QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS

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