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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C3861
2.5V/3.3V, High Bandwidth, Hot Insertion, 10-Bit, 2-Port, BusSwitch
Product Features
* * * * * * * * Near zero propagation delay 5 switches connect inputs to outputs High bandwidth (>400 MHz) Rail-to-rail 2.5V or 3.3V switching 5V I/O Tolerant 2.5V Supply Voltage Operation Permits Hot-Insertion Available Packages: - 24-pin 150 mil wide plastic QSOP (Q) - 24-pin 173 mil wide plastic TSSOP (L)
Product Description
Pericom's Semiconductor's PI3C series of logic circuits are produced using the Company's advanced submicron CMOS technology, achieving industry leading performance. The PI3C3861 is a 10-bit, 2.5V or 3.3 volt, 2-port bus switch designed with a low ON-Resistance (5) allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal. This device is very userful in switching signals that have high bandwidth (>400 MHz).
Applications
* High bandwidth data switching * Hot Docking
Logic Block Diagram
A0 B0
Product Pin Configuration
A9
B9
BE
NC A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 GND
1 2 3 4 5 6 7 8 9 10 11 12
24-Pin L, Q
24 23 22 21 20 19 18 17 16 15 14 13
Vcc BE B0 B1 B2 B3 B4 B5 B6 B7 B8 B9
Truth Table(1)
Function Disconnect Connect BE H L A0-9 Hi-Z B0-9
Product Pin Description
Pin Name BE A0-9 B0-9 GND VCC Description Bus Enable Input (Active LOW) Bus A Bus B Ground Power
Note: H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance
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PI3C3861 2.5V/3.3V, High-Bandwidth, Hot-Insertion, 10 -Bit, 2-Port, Bus Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .......................................................... -65C to +150C Note: Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ............................. -40C to +85C RATINGS may cause permanent damage to the device. Supply Voltage to Ground Potential (Inputs & Vcc Only) ........ -0.5V to +4.6V This is a stress rating only and functional operation Supply Voltage to Ground Potential (Outputs & D/O Only) ..... -0.5V to +4.6V of the device at these or any other conditions above those indicated in the operational sections of this DC Input Voltage .................................................................... -0.5V to +5.5V specification is not implied. Exposure to absolute maxiDC Output Current ..............................................................................120mA mum rating conditions for extended periods may affect Power Dissipation .................................................................................. 0.5W reliability.
DC Electrical Characteristics (Over Operating Range, TA = -40C to +85C, VCC = 3.3V 10%)
Parameters Description
VIH VIL IIH IIL IOZH VIK RON Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Clamp Diode Voltage Switch On Resistance(4)
Test Conditions(1)
Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., IIN = -18mA VCC = Min., VIN = 0.0V, ION = 48mA VCC = Min., VIN = 2.4V, ION = 15mA
Min.
2.0 -0.5
Typ(2)
Max.
0.8 1 1 1
Units
V
A V
High Impedance Output Current 0 A, B VCC -0.73 5 8
- 1.2 7 15
Capacitance (TA = 25C, f = 1 MHz)
Parameters(5) CIN COFF CON Description Input Capacitance A/B Capacitance, Switch Off A/B Capacitance, Switch On Test Conditions VIN = 0V VIN = 0V VIN = 0V Typ 3.5 5.0 10.0 Units pF
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A,B) pins. 5. This parameter is determined by device characterization but is not production tested.
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PI3C3861 2.5V/3.3V, High-Bandwidth, Hot-Insertion, 10 -Bit, 2-Port, Bus Switch
Power Supply Characteristics
Parameters Description ICC ICC Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Test Conditions(1) VCC = Max. VCC = Max. VIN = GND or VCC VIN = 3.0V(3) Min. Typ(2) 260 Max. 500 750 A Units
Notes: 1. For Max. or Min.conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 3.3V, +25C ambient. 3. Per TTL driven input (control input only); A and B pins do not contribute to ICC. 4. This current applies to the control inputs only and represent 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 not tested, but is guaranteed by design.
Switching Characteristics over 3.3V Operating Range
PI3C3861 Com. Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ De s cription Propagation Delay (2,3) Ax to Bx, Bx to Ax Bus Enable Time BE to Ax or Bx Bus Disable Time BE to Ax or Bx CL = 50pF, RL = 500 1.5 1.5 Conditions M in. M a x. 0.25 6.5 5.5 ns Units
Switching Characteristics over 2.5V Operating Range
PI3C3861 Com. Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ De s cription Propagation Delay ( 2 , 3 ) Ax to Bx, Bx to Ax Bus Enable Time BE to Ax or Bx Bus Disable Time BE to Ax or Bx CL = 50pF, RL = 500 1.5 1.5 Conditions M in. M a x. 0.25 9.8 8.3 ns Units
Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The bus switch contributes no propagational 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 50pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational 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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VOUT, (V)
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C3861 2.5V/3.3V, High-Bandwidth, Hot-Insertion, 10 -Bit, 2-Port, Bus Switch
4.0
VCC = 3.3V 3.1V 2.9V 2.7V 2.5V 2.3V
3.8V 3.6V 3.4V 3.2V 3.0V 2.8V
2.0
0.0 0.0
1.0
2.0 VIN, (V)
3.0
4.0
5.0
Output Voltage vs. Input Voltage over Various Supply Voltages Output Voltage vs. Input Voltage over Various Supply Voltages
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PI3C3861 2.5V/3.3V, High-Bandwidth, Hot-Insertion, 10 -Bit, 2-Port, Bus Switch
Packaging Mechanical: 24-pin TSSOP (package code L)
24
.169 .177
4.3 4.5 .004 .008 0.09 0.20
1
.303 .311 7.7 7.9
0.45 0.75 .047 1.20 Max
.018 .030
SEATING PLANE
.252 BSC 6.4
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 .006
0.05 0.15
X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
Packaging Mechanical: 24-pin QSOP (package code Q)
24
.008 0.20 MIN.
.008 .013 0.20 0.33 Guage Plane
.150 .157
3.81 3.99
.010 0.254
1 .337 .344 8.56 8.74
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.033 0.84
.053 .069
1.35 1.75
.015 x 45 0.38
Detail A
.007 .010 SEATING PLANE .004 0.101 .010 0.254 .016 .050 0.406 1.27 .228 .244 5.79 6.20
0.178 0.254
.025 typical 0.635
.008 0.203 .012 0.305
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Ordering Information
Part PI3C3861L PI3C3861Q Pin - Package 24 - TSSOP (L) 24 - QSOP (Q) Dime ns ions -40C to +85C -40C to +85C
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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PS8198C 02/11/03

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