QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products 3.3V 8-Bit Swit

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QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products 3.3V 8-Bit Swit

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QS3VH245, QS3VH2245
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products 3.3V 8-Bit Switch Swap Applications (HotSwitch)
DESCRIPTION
QS3VH245 QS3VH2245
channel switches with parasitic diode path tolerant state typical Flat characteristics from Bidirectional dataflow with near-zero delay added ground bounce Excellent matching between channels capacitance Maximum operating frequency data 150MHz LVTTL-compatible control inputs Undershoot clamp diodes control switch inputs QS3VH245 version noise line matching QS3VH245 available QSOP, SOIC TSSOP packages QS3VH2245 available QSOP SOIC packages
QS3VH245 QS3VH2245 HotSwitch 8-bit switches specially designed hot-swapping environment. QS3VH245 very resistance resulting under 200ps propagation delay through switch. QS3VH2245 with resistance with 1.25ns propagation delay ideal line matching noise environments. switches turned under control LVTTL-compatible Output Enable signal bidirectional data flow with added delay groundbounce. state, switches 5Vtolerant offer very high impedance terminals. combination near-zero propagation delay, high impedance, over-voltage tolerance makes QS3VH245 QS3VH2245 ideal swapping applications. resistance QS3VH245 makes ideal CompactPCI swapping environment.
Figure Functional Block Diagram
MDSL-00244-03 OCTOBER 1998
QUALITY SEMICONDUCTOR, INC.
QS3VH245, QS3VH2245 Table Description
Name Description Output Enable Data I/Os Data I/OS
Figure Configuration (All Pins View)
Table Function Table
Outputs Disconnected
Table Absolute Maximum Rating
Supply Voltage Ground -0.5V 4.6V Switch Voltage -0.5V 5.5V Input Voltage -0.5V 5.5V 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
Pins
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 QSOP, SOIC Unit
Control Inputs QuickSwitch Channels (Switch OFF)
Note: Capacitance guaranteed, production tested. total capacitance while switch please Section under "Input Switch Capacitance".
QUALITY SEMICONDUCTOR, INC.
MDSL-00244-03 OCTOBER 1998
QS3VH245, QS3VH2245 Table Electrical Characteristics Over Operating Range
-40°C 85°C, 3.3V ±0.3V Symbol IOZ| Parameter Input HIGH Voltage Input Voltage Input Leakage Current Off-State Current (Hi-Z) Switch Resistance(2) Switch Resistance(2) Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs VCC, Switches Min., 0.0V 30mA Min., 2.4V 15mA 3VH245 3VH2245 3VH245 3VH2245 Typ(1) Unit
Notes: Typical values indicate 3.3V 25°C. diagram explaining procedure measurement, please Section Electrical Characteristics." guaranteed, production tested.
Figure Typical Resistance 3.3V (QS3VH245)
(ohms)
(Volts)
Note: QS3VH2245, shown.
MDSL-00244-03 OCTOBER 1998
QUALITY SEMICONDUCTOR, INC.
QS3VH245, QS3VH2245 Table Power Supply Characteristics Over Operating Range
-40°C 85°C, 3.3V ±0.3V Symbol ICCQ QCCD Parameter Quiescent Power Supply Current Power Supply Current(2,3) Input HIGH Dynamic Power Supply Current MHz(4) Test Conditions(1) Max., VCC, 3.6V, 3.0V, Control Input 3.6V, Pins Open, Control Input Toggling Duty Cycle 0.25 Unit
Notes: conditions shown Min. Max., appropriate values specified under specifications. LVTTL-driven-control input. pins contribute ICC. This parameter guaranteed, production tested. This parameter represents current required switch internal capacitance specified frequency. inputs contribute Dynamic Power Supply Current. This parameter guaranteed, production tested.
Table Switching Characteristics Over Operating Range
-40°C 85°C, 3.3V ±0.3V CLOAD 50pF, RLOAD unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Description(1) Data Propagation Delay(2,3) to/from Switch Turn-on Delay An/Bn Switch Turn-off Delay(2) An/Bn Operating Frequency Data(2,5) Operating Frequency Enable(2,6)
QS3VH245 Min(4) 0.25
1.25
QS3VH2245 Min(4)
Unit
Notes: Test Circuit Waveforms. This parameter guaranteed, production tested. switch contributes propagation delay other than delay resistance switch load capacitance. time constant switch alone order 0.20ns QS3VH245 1.25ns QS3VH2245 50pF. 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. Minimums guaranteed, production tested. Maximum frequency bidirectional data flow. Maximum toggle frequency control input.
QUALITY SEMICONDUCTOR, INC.
MDSL-00244-03 OCTOBER 1998

QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products 3.3V 8-Bit Swit

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