QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS
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QS316233, QS3162233
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS QuickSwitch 32:16 Mux/Demux
DESCRIPTION
QS316233 QS3162233
Enhanced channel with inherent diode bidirectional switches connect inputs outputs Zero propagation delay, zero ground bounce TTL-compatible input output levels Undershoot clamp diodes switch control pins Available 56-pin SSOP TSSOP QS3162233 version noise
APPLICATIONS
Video, audio, graphics switching, muxing Hot-swapping, hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note AN-11) funneling
QS316233 QS3162233, each 32-bit 16-bit high-speed CMOS, TTL-compatible switch which multiplex demultiplex data. used memory interleaving where memory banks need addressed simultaneously. also used 16-bit 8-bit multiplexers 32-bit 16-bit multiplexer. SELn inputs control data flow. TESTn inputs control either ports connection. QS3162233 adds internal series termination resistor each switch reduce reflection noise high-speed applications. Mux/Demux devices provide order magnitude faster speed than equivalent logic devices.
Figure Functional Block Diagram
TEST1 SEL1 TEST2
through
Eight Channels
SEL2
through
Eight Channels
MDSL-00145-01 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS316233, QS3162233 Table Description
Name nB1, SEL1, SEL2 TEST1, TEST2 Function Data select Port select
Figure Configuration (All Pins View)
SSOP(PV), TSSOP(PA)
10B1 10B2 12B1 12B2 14B1 14B2 16B1 16B2 TEST1 TEST2 11B1 11B2 13B1 13B2 15B1 15B2 SEL1 SEL2
Table Function Table
through SEL1 through SEL2 TEST2 nB1, Function TEST1 nB1, Function
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 =85°C, SSOP 0.93 watts TSSOP 0.77 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 SSOP/TSSOP Unit 10.0
Note: Capacitance guaranteed, tested. total capacitance while switch please Section under "Input Switch Capacitance."
QUALITY SEMICONDUCTOR, INC.
MDSL-00145-01 JULY 1997
QS316233, QS3162233 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(2) Switch Resistance(2) Pass Voltage(3) Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs VOUT Min., 0.0V QS316233 30mA QS3162233 Min., 2.4V QS316233 15mA QS3162233 IOUT -5µA Typ(1) 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 (QS316233)
(ohms)
(Volts)
Note: QS3162233, shown.
MDSL-00145-01 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS316233, QS3162233 Table Power Supply Characteristics Over Operating Range
-40°C 85°C, 5.0V Symbol ICCQ QCCD Parameter Quiescent Power Supply Current Power Supply Current Control 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 inputs (VIN 3.4V). 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 Description(1) Data Propagation Delay(2,4) nBi, Switch Multiplex Delay Switch Turn-on Delay SEL, TEST Switch Turn-off Delay(2) SEL, TEST QS316233
Unit 1.25(3)
QS3162233
0.25(3)
tPZL tPZH tPLZ tPHZ
Notes: Test Circuit Waveforms. Minimums guaranteed, production tested. This parameter guaranteed, production tested. time constant switch alone order 0.25ns QS316233 1.25ns QS3162233 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-00145-01 JULY 1997
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