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

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

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QS33X253, QS33X2253
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS QuickSwitch MultiWidth24:6 Mux/Demux
DESCRIPTION
QS33X253 QS33X2253
Enhanced channel with inherent diode Bidirectional switches connect inputs ouputs 24:6 Mux/Demux switches Zero propagation delay, zero ground bounce Individual controls each bank Undershoot clamp diodes switch control pins TTL-compatible control inputs Available 48-pin QVSOP (Q1) QS33X2253 version noise
APPLICATIONS
Logic replacement Video, audio, graphics switching, muxing Hot-swapping, hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note AN-11)
QS33X253 high-speed CMOS 24:6 dual 4:1) multiplexer/demultiplexer. QS33X253 member MultiWidthfamily functionally compatible three QuickSwitch version 74F253, 74FCT253, 74ALS/AS/LS253 Dual multiplexers. resistance QS33X253 allows inputs connected outputs without adding propagation delay without generating additional ground bounce noise. TTL-compatible control circuitry with "Break-before-make" feature avoids contention demux side. This part ideal video switching four memory bank interleaving applications. QS33X2253 series resistors reduce ground bounce noise. Mux/Demux devices provide order magnitude faster speed than equivalent logic devices.
Figure Functional Block Diagram
S0AB S1AB
S0CD S1CD
S0EF S1EF
MDSL-00118-00 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS33X253, QS33X2253 Table Description
Name S0XX, S1XX Description Data Inputs Select Inputs Enable Inputs Data Outputs
S1AB S1CD S1EF
Figure Configuration (All Pins View)
QVSOP (Q1)
SOAB SOCD SOEF
Table Function Table
Enable Select S1AB S0AB Outputs Hi-Z Hi-Z Function Disable Disable S1-0 S1-0 S1-0 S1-0
Note: This function table represents function block "AB". "CD" block nomenclature substitutes "D". "EF" block nomenclature substitutes "F".
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 Pins Control Inputs QuickSwitch Channels (Switch OFF) Demux QVSOP Unit
Note: Capacitance guaranteed, production tested typical values. total capacitance while switch please Section under "Input Switch Capacitance".
QUALITY SEMICONDUCTOR, INC.
MDSL-00118-00 JULY 1997
QS33X253, QS33X2253 Table Electrical Characteristics Over Operating Range
-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
Test Conditions Guaranteed Logic HIGH Control Pins Guaranteed Logic Control Pins VOUT Min., 0.0V QS33X253 30mA QS33X2253 Min., 2.4V QS33X253 15mA QS33X2253 IOUT -5µA
Typ(1)
Unit
Switch Resistanc(2) Pass Voltage(3)
Notes: Typical values indicate 5.0V 25°C. diagram explaining procedure measurement, please Section under Electrical Characteristics". guaranteed characterization, production tested. Pass voltage guaranteed, production tested.
Figure Typical Resistance (QS33X253)
(ohms)
(Volts)
Note: QS33X2253, shown.
MDSL-00118-00 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS33X253, QS33X2253 Table Power Supply Characteristics Over Operating Range
-40°C +85°C, 5.0V Symbol ICCQ QCCD Parameter Quiescent Power Supply Current Power Supply Current(2) Input HIGH Dynamic Power Supply Current MHz(3) Test Conditions(1) Max., VCC, Max., 3.4V, control input Max., Pins Open, Control Inputs 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
-40°C +85°C, 5.0V CLOAD 50pF, RLOAD unless otherwise noted. Symbol tPLH tPHL tPZL tPZH tPZL tPZH tPLZ tPHZ Description(1)( Data Propagation Delay(2,3) Switch Turn-on Delay Switch Turn-on Delay Switch Turn-off Delay(2) QS33X253
Unit 1.25(3)
QS33X2253
0.25(3)
Notes: Test Circuit Waveforms. Minimums guaranteed, production tested. This parameter guaranteed, production tested. switch contributes propagation delay other than delay resistance switch load capacitance. time constant switch alone order 0.25ns QS33X253 1.25ns QS33X2253 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.
QUALITY SEMICONDUCTOR, INC.
MDSL-00118-00 JULY 1997

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

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