QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS
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QS32X383, QS32X2383
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS 20-Bit Exchange
DESCRIPTION
QS32X383 QS32X2383
Enhanced channel with inherent diode bidirectional switches connect inputs outputs Zero propagation delay (QS32X383) Zero ground bounce Undershoot Clamp diodes control switch pins 20-bit Double-Width format exchange allows nibble swap Zero ground bounce flow-through mode TTL-compatible input output levels Available 48-pin, 150-mil QVSOP package QS323X2383 version noise
QS32X383 QS32X2383 provide sets high-speed CMOS TTL-compatible switches. resistance QS32X383 allows inputs connected outputs without adding propagation delay without generating additional ground bounce noise. Enable (BE) signals turn switches Exchange (BX) signals provide nibble swap pairs signals. This exchange configuration allows byte swapping buses systems. also used 10-wide 2-to-1 multiplexer create delay barrel shifters, etc. QS32X2383 adds internal series termination resistor each switch reduce reflection noise high speed applications.
APPLICATIONS
Resource sharing Crossbar switching Hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note An-11)
Figure Functional Block Diagram
MDSL-00115-04 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS32X383, QS32X2383 Table Description
Name Function Buses Buses Switch Enable Exchange
Figure Configuration (All Pins View)
QVSOP
Table Function Table
A0-A4 Hi-Z C0-C4 D0-D4 A5-A9 Hi-Z C5-C9 D5-D9 B0-B4 Hi-Z D0-D4 C0-C4 B5-B9 Hi-Z D5-D9 C5-C9 Function Disconnect Connect Exchange 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 Pins Control Inputs QuickSwitch Channels (Switch OFF) QVSOP Unit
Note: Capacitance guaranteed, production tested. total capacitance while switch please section under "Input Switch Capacitance."
QUALITY SEMICONDUCTOR, INC.
MDSL-00115-04 JULY 1997
QS32X383, QS32X2383 Table Electrical Characteristics Over Operating Range
-48°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) Switch Resistance(2) Pass Voltage(3) Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs VCC, Control Inputs VOUT VCC, Switches Min., 0.0V 30mA Min., 2.4V 15mA IOUT -5µA 32X383 32X2383 32X383 32X2383 Typ(1) 0.01 0.01 Unit
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 (QS32X383)
(ohms)
(Volts)
Note: QS32X2383, shown.
MDSL-00115-04 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS32X383, QS32X2383 Table Power Supply Characteristics Over Operating Range
-40°C 85°C, 5.0V 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, 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, 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 tPLZ tPHZ tPHZ Description(1) Data Propagation Delay(2,4) AiBi CiDi, CiDi BiAi Switch Turn-on Delay Switch Turn-off Delay(2) Switch Multiplex Delay
QS32X383
Unit 1.5(3)
QS32X2383
0.25(3)
Notes: Test Circuit Waveforms. Minimums guaranteed, production tested. This parameter guaranteed, production tested. time constant switch alone order 0.25ns QS32X383 1.25ns QS32X2383 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-00115-04 JULY 1997
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