View IDTQS34XR800_219784.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

IDTQS34XR800 HIGH-SPEED CMOS 32-BIT LOW RESISTANCE QUICKSWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH(R) PRODUCTS HIGH-SPEED CMOS 32-BIT LOW RESISTANCE QUICKSWITCH WITH PRECHARGED OUTPUTS
FEATURES:
* * * * 2.5 bidirectional switches connect inputs to outputs Zero propagation delay, zero ground bounce Undershoot clamp diodes on all switch and control inputs Outputs precharge voltage to minimize signal distortion during live insertion * Flow-through pinout for easy layout * TTL-compatible input and output levels * Available in 80-pin Millipaq package
IDTQS34XR800
DESCRIPTION:
The QS34XR800 is a 32-bit high-speed CMOS bus switch controlled by a four enable (ONx) input in a flow-through pinout. When ONx is low, the switch is on and port A is connected to port B. When ONx is high, the switch between port A and port B is open and port B is precharged to the bias voltage. The low ON resistance (2.5) of the QS34XR800 allows inputs to be connected to outputs without adding propagation delay and without generating additional noise. The QS34XR800 also precharges the B port to a user-selectable bias voltage to minimize live-insertion noise, which is useful in VME bus applications.
FUNCTIONAL BLOCK DIAGRAM
VBIAS1 VBIAS2
A0
B0
A8
B8
A7
B7
A15
B15
ON1
O N2
VBIAS3
VBIAS4
A16
B16
A24
B24
A23
B23
A31
B31
ON3
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
O N3
INDUSTRIAL TEMPERATURE RANGE
1
c 1999 Integrated Device Technology, Inc.
NOVEMBER 1999
DSC-5538/1
IDTQS34XR800 HIGH-SPEED CMOS 32-BIT LOW RESISTANCE QUICKSWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ON1 A0 A1 A2 A3 A4 A5 A6 A7 GND ON2 A8 A9 A10 A11 A12 A13 A14 A15 GND ON3 A16 A17 A18 A19 A20 A21 A22 A23 GND ON4 A24 A25 A26 A27 A28 A29 A30 A31 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 Vcc B0 B1 B2 B3 B4 B5 B6 B7 VBIAS1 Vcc B8 B9 B10 B11 B12 B13 B14 B15 VBIAS2 Vcc B16 B17 B18 B19 B20 B21 B22 B23 VBIAS3 Vcc B24 B25 B26 B27 B28 B29 B30 B31 VBIAS4
ABSOLUTE MAXIMUM RATINGS(1)
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 0.5 -65 to +150 Unit V V V V mA W C
NOTE: 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
Pins Control Pins
(TA = +25C, f = 1.0MHZ, VIN = 0V, VOUT = 0V)
Typ. 3 5 Max.(1) 4 8 Unit pF pF
Quickswitch Channels (Switch OFF)
NOTE: 1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names A0 - A31 B0 - B31 ONx VBIASX I/O I/O I/O I I Bus A Bus B Bus Switch Enable Bias Voltage Description
FUNCTION TABLE(1)
ONx (2) L H Bm-Bn Am - An VBIASX Function Connect Precharge
NOTES: 1. H= HIGH Voltage Level L= LOW Voltage Level 2. For X = 1 m=0 X=2 m=8 X=3 m = 16 X=4 m = 24
n=7 n = 15 n = 23 n = 31
MILLIPAQ (Q3) TOP VIEW 2
IDTQS34XR800 HIGH-SPEED CMOS 32-BIT LOW RESISTANCE QUICKSWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 10%
Symbol VIH VIL VBIAS IO IIN IOZ RON Parameter Input HIGH Level Input LOW Level Bias Voltage Bias Current Input LeakageCurrent (Control Inputs) Off-State Output Current (Hi-Z) Switch ON Resistance(2,3) Test Conditions Guaranteed Logic HIGH for Control Pins Guaranteed Logic LOW for Control Pins Vcc = 5V, ONx = HIGH Vcc = 4.5V, VBIAS = 2.4V, VOUT = 0, ONx = HIGH 0V VIN VCC 0V VOUT VCC VCC = Min., VIN = 0V, ION = 30mA VCC = Min., VIN = 2.4V, ION =15mA Min. 2 -- 1.3 0.25 -- -- -- -- Typ.(1) -- -- -- -- -- -- 2.5 4 Max. -- 0.8 Vcc -- 1 1 5 8.5 Unit V V V mA A A
NOTES: 1. Typical values are at VCC = 5.0V, TA = 25C. 2. Max value of RON is guaranteed but not production tested. 3. During input/output leakage, testing all pins are at HIGH or LOW state.
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
VIN
(Volts)
2.0
2.5
3.0
3.5
3
IDTQS34XR800 HIGH-SPEED CMOS 32-BIT LOW RESISTANCE QUICKSWITCH
INDUSTRIAL TEMPERATURE 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., A and B pins open Data inputs = GND Control Inputs Toggling at 50% Duty Cycle Typ. 0.2 -- -- Max. 6 6.5 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 TLL driven input (VIN = 3.4V, control inputs only). A and B 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 A and B 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 10%; CLOAD = 50pF, RLOAD = 500 unless otherwise noted.
Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Data Propagation Delay (2,3) A to B or B to A Switch Turn-on Delay ONx to A or B Switch Turn-off Delay (2) ONx to A or B 1.5 -- 6.5
ns
Parameter
Min. (1) -- 1.5
Typ. -- --
Max. 0.12 7.5
Unit
ns ns
NOTES: 1. Minimums are guaranteed but not production tested. 2. This parameter is guaranteed but not production 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 0.12ns 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.
4
IDTQS34XR800 HIGH-SPEED CMOS 32-BIT LOW RESISTANCE QUICKSWITCH
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
ID TQS XXXXX Device Type XX Package X Process
Blank
Industrial (-40C to +85C )
Q3
150 mil MillipaQ
34XR800
High Speed CMOS 32-Bit Low Resistance QuickSwitch with Precharged Outputs
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com
for Tech Support: logichelp@idt.com (408) 654-6459
5

▲Up To Search▲

Price & Availability of IDTQS34XR800

	To Download IDTQS34XR800 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .