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IDTQS33X253 HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
INDUSTRIALTEMPERATURE RANGE
QUICKSWITCH(R) PRODUCTS HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
FEATURES:
- - - - - - - - Enhanced N channel FET with no inherent diode to Vcc Bidirectional switches connect inputs to outputs 24:6 Mux/Demux switches Zero propagation delay, zero ground bounce Individual controls for each bank Undershoot clamp diodes on all switch and control pins TTL-compatible control inputs Available in 48-pin QVSOP Package
IDTQS33X253
DESCRIPTION:
The QS33X253 is a high-speed CMOS 24:6 (3, dual 4:1) multiplexer/ demultiplexer. The QS33X253 is a member of the MultiWidthTM family and is functionally compatible to three of the QuickSwitch version of the 74F253, 74FCT253, and the 74ALS/AS/LS253 Dual 4:1 multiplexers. The low ON resistance of the QS33X253 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. TTL-compatible control circuitry with "Break-before-make" feature avoids bus contention on the demux side. This part is ideal for video switching and four way memory bank interleaving applications. Mux/Demux devices provide an order of magnitude faster speed than equivalent logic devices. The QS33X253 is characterized for operation at -40C to +85C.
APPLICATIONS
- - - - Logic replacment Video, audio, graphics switching, muxing Hot-swapping, hot-docking Voltage translation (5V to 3.3V)
FUNCTIONAL BLOCK DIAGRAM
S0 S1
AB
S0 S1
CD
AB
CD
EA EB
EC ED
I0 A I1 A YA I2 A I3 A I0 B YB I1 B I2 B I3 B YD YC
I0 C I1 C I2 C I3 C I0 D I1 D I2 D I3 D
S0 S1
EF
EF
EE EF
I0 E I1 E YE I2 E I3 E I0 F YF I1 F I2 F I3 F
INDUSTRIAL TEMPERATURE RANGE
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c 1999 Integrated Device Technology, Inc.
JANUARY 2000
DSC-5761/-
IDTQS33X253 HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
INDUSTRIALTEMPERATURE RANGE (1) Unit V V V V mA W C
PIN CONFIGURATION
EA S1AB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VCC EB S0AB
ABSOLUTE MAXIMUM RATINGS
Symbol VTERM(2) VTERM(3) VTERM(3) VAC IOUT PMAX TSTG Description Supply Voltage to Ground DC Switch Voltage VS DC Input Voltage VIN AC Input Voltage (pulse width 20ns) DC Output Current Maximum Power Dissipation (TA = 85C) Storage Temperature
Max. - 0.5 to +7 - 0.5 to +7 - 0.5 to +7 -3 120 .5 - 65 to +150
I3A I2A I1A I0A
YA GND EC S1CD
I3B I2B I1B I0B
YB VCC ED S0CD
I3C I2C I1C I0C
YC GND EE S1EF
I3D I2D I1D I0D
YD VCC EF S0EF
NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. Vcc Terminals. 3. All terminals except Vcc.
CAPACITANCE
(TA = +25OC, f = 1.0MHz, VIN = 0V, VOUT = 0V)
Pins Control Inputs Quickswitch Channels (Switch OFF) Demux Mux Typ. 4 5 14 Max. (1) 5 7 16 Unit pF pF pF
I3E I2E I1E I0E
YE GND
I3F I2F I1F I0F
YF
NOTE: 1. This parameter is guaranteed at characterization but not tested.
FUNCTION TABLE(1, 2)
Enable EA H X L L L L EB X H L L L L Select S1AB X X L L H H S0AB X X L H L H Outputs YA Hi-Z X I0A I1A I2A I3A YB X Hi-Z I 0B I 1B I 2B I 3B Function Disable A Disable B S1 - 0 = 0 S1 - 0 = 1 S1 - 0 = 2 S1 - 0 = 3
QVSOP TOP VIEW
PIN DESCRIPTION
Pin Names Ixx S0xx, S1xx Ex Yx I/O I I I O Description Data Inputs Select Inputs Enable Inputs Data Outputs
NOTES: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedence 2. This table represents the function for block "AB". The "CD" block nomenclature substitutes "A" for "C" and "B" for "D". The "EF" block nomenclature substitutes "A" for "E" and "B" for "F".
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IDTQS33X253 HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
INDUSTRIALTEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 5%
Symbol VIH VIL IIN IOZ RON RON VP Parameter Input HIGH Voltage Input LOW Voltage Input Leakage Current (Control Inputs) Off-State Current (Hi-Z) Switch ON Resistance Switch ON Resistance Pass Voltage (2) Test Conditions Guaranteed Logic HIGH for Control Inputs Guaranteed Logic LOW for Control Inputs 0V VIN Vcc 0V VOUT Vcc Vcc = Min., VIN = 0V, ION = 30mA Vcc = Min., VIN = 2.4V, ION = 15mA VIN = Vcc = 5V, IOUT = -5A Min. 2 -- -- -- -- -- 3.7 Typ.(1) -- -- -- -- 7 10 4 Max. -- 0.8 1 1 10 15 4.2 Unit V V A A V
NOTES: 1. Typical values are at VCC = 5.0V, TA = 25C. 2. Pass voltage is guaranteed but not production tested.
TYPICAL ON RESISTANCE vs VIN AT VCC = 5V
16
RON
(ohms)
14 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
VIN
(Volts)
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IDTQS33X253 HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
INDUSTRIALTEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol ICCQ ICC ICCD Parameter Quiescent Power Supply Current Power Supply Current per Control Input HIGH(2) Dynamic Power Supply Current per MHz(3) Test Conditions(1) VCC = Max., VIN = GND or Vcc, f = 0 VCC = Max., VIN = 3.4V , f = 0 VCC = Max., I and Y pins open Control Input Toggling at 50% Duty Cycle Max. 9 1.5 0.25 Unit A mA mA/MHz
NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per TTL driven input (VIN = 3.4V, control inputs only). I and Y pins do not contribute to Icc. 3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The I and Y inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40C to +85C, VCC = 5.0V 5% CLOAD = 50pF, RLOAD = 500 unless otherwise noted.
Symbol tPLH tPHL tPZL tPZH tPZL tPZH tPLZ tPHZ Parameter Data Propagation Delay (2, 3) In to Y Switch Turn-On Delay Sn to Y Switch Turn-Off Delay En to Y Switch Turn-Off Delay (2) En to Y, Sn to Y Min. (1) -- 0.5 0.5 0.5 Typ. -- -- -- -- Max. 0.25 6.6 6 6 Unit
ns ns ns ns
NOTES: 1. Minimums guaranteed but not tested. 2. This parameter is guaranteed but not tested 3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
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IDTQS33X253 HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
INDUSTRIALTEMPERATURE RANGE
ORDERING INFORMATION
IDTQS XXXXX Device Type XX Package X Process
Blank
Industrial (-40C to +85C)
Q1
QVSOP
33X253
High Speed CMOS Quickswitch Multiwidth 24:6 Mux/Demux
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