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

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

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

Datasheet Thumbnail

Top Searches for this datasheet

QS3253, QS32253
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS QuickSwitch Dual Mux/Demux
DESCRIPTION
QS3253 QS32253
Enhanced channel with inherent diode bidirectional switches connect inputs outputs compatible with 74F253, 74FCT253, 74FCT253T Zero propagation delay, zero ground bounce Undershoot clamp diodes switch control pins TTL-compatible control inputs QS32253 version noise Available SOIC (S1), QSOP
QS3253 high-speed CMOS TTL-compatible dual multiplexer/demultiplexer with 3-state outputs. QS3253 function pinout compatible version 74F253, 74FCT253, 74ALS/ AS/LS253 dual multiplexers. resistance QS3253 allows inputs connected outputs without adding propagation delay without generating additional ground bounce noise. QS32253 series resitors reduce ground bounce noise. Mux/Demux devices provide order magnitude faster speed than equivalent logic devices.
APPLICATIONS
Logic replacement Video, audio, graphics switching, muxing Hot-swapping, hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note AN-11) funneling
Figure Functional Block Diagram
MDSL-00043-03 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS3253, QS32253 Table Description
Name Description Data Inputs Select Inputs Enable Inputs Data Outputs
Figure Configuration (All Pins View)
SOIC (S1), QSOP
Table Function Table
Enable Select Outputs Hi-Z Hi-Z Function Disable Disable S1-0 S1-0 S1-0 S1-0
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 SOIC, QSOP Unit
Note: Capacitance guaranteed, production tested typical values. total capacitance while switch please Section under "Input Switch Capacitance."
QUALITY SEMICONDUCTOR, INC.
MDSL-00043-03 JULY 1997
QS3253, QS32253 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 Resistanc(2) Pass Voltage(3) Test Conditions Guaranteed Logic HIGH Control Pins Guaranteed Logic Control Pins VOUT Min., 0.0V 30mA Min., 2.4V 15mA QS3253 QS32253 QS3253 QS32253 Typ(1) Unit
IOUT -5µA
Notes: Typical values indicate 5.0V 25°C. diagram explaining procedure measurement, please Section under Electrical Characteristics." guaranteed, production tested. Pass voltage guaranteed, production tested.
Figure Typical Resistance 5.0V (QS3253)
(ohms)
(Volts)
Note: QS32253, shown.
MDSL-00043-03 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS3253, QS32253 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. QS3253
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)
Unit 1.25(3)
QS32253
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 QS3253 1.25ns QS32253 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-00043-03 JULY 1997

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

Top Searches for this datasheet

Other recent searches