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PI5C3390 PI5C32390 (25-ohm)
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
16-to-8 Multiplexer/Demultiplexer Bus Switch
Features:
Near-Zero propagation delay Low noise, 25-ohm version (PI5C32390) 5-ohm switches connect inputs to outputs (PI5C3390) Direct bus connection when switches are ON Ultra-low quiescent power (0.2A typical) - Ideally suited for notebook applications * Packaging (Pb-free & Green available): - 28-pin 150-mil wide plastic QSOP (Q) * * * * *
Description:
Pericom Semiconductor's PI5C3390 and PI5C32390 are 16-to-8 multiplexer/demultiplexer bus switches with a low On-Resistance allowing inputs to be connected directly to outputs. The two enable inputs connect each of eight I/O to the common I/O pin. This multiplexer function can be used to select and route logic signals to form crossbar switches, isolate bus capacitance, or provide a zero delay switch connection. The bus switch creates no additional ground bounce noise or additional propagation delay. The PI5C32390 is designed with an internal 25-ohm resistor reducing noise reflection in high-speed applications.
Block Diagram
A0 C0
Pin Configuration
A0 B0 C0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC A7 B7 C7 A6 B6 C6 A5 B5 C5 A4 B4 C4 BEN
A7 AEN B0
C7
A1 B1 C1 A2 B2 C2 A3 B3 C3 AEN GND
B7 BEN
Truth Table(1)
AEN H L H L BEN H H L L A Sw Off On Off On B Sw Off Off On On Function Disconnect A to C B to C A, B to C
Pin Description
Pin Name AEN, BEN A0-A7 B0-B7 C0-C7 I/O I I/O I/O I/O Description Bus Output Enable (Active LOW) Bus A Bus B Bus C
Note: 1. H = High Voltage Level L = Low Voltage Level
1
PS7030E
09/15/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C3390; PI5C32390 16:8 Multiplexer/Demultiplexer Bus Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .......................................................... -65C to +150C Ambient Temperature with Power Applied .......................... -40C to +85C Supply Voltage to Ground Potential (Inputs & Vcc Only) .... -0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) . -0.5V to +7.0V DC Input Voltage ................................................................... -0.5V to +7.0V DC Output Current ............................................................................. 120 mA Power Dissipation ................................................................................... 0.5W
Note: Stresses greater than those listed under 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.
DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C, VCC = 5V 5%)
Parameters Description VIH VIL IIH IIL IOZH VIK IOS VH RON Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Short Circuit Current(3) Input Hysteresis at Control Pins Switch On Resistance
(4)
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 A, B, C VCC VCC = Min., IIN = -18 mA A, B (C) = 0V, C (A, B) = VCC VCC = Min., VIN = 0.0V, ION = 48 mA VCC = Min., VIN = 2.4V, ION = 15 mA PI5C3390 PI5C32390 PI5C3390 PI5C32390
Min. 2.0 -0.5 -- -- -- 100 -- -- 20 -- 20
Typ(2) -- -- -- -- -- -0.7 -- 150 5 28 10 35
Max. -- 0.8 1 1 1 -1.2 -- -- 7 40 15 48
Units V V A A A V mA m V ohm ohm
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 6 6 8 Units pF pF 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= 5.0V, 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, B, and C pins at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (A,B,C) pins. 5. This parameter is determined by device characterization but is not production tested.
2
PS7030E
09/15/04
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C3390; PI5C32390 16:8 Multiplexer/Demultiplexer Bus Switch
Power Supply Characteristics
Parameters Description ICC ICC ICCD Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) VCC = Max. VCC = Max. VCC = Max., A, B, and C Pins Open BE = GND Control Input Toggling 50% Duty Cycle Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) Min. -- -- -- Typ(2) 0.2 -- -- Max. 30 3.5 0.25 Units A mA mA/ MHz
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V, control inputs only); A, B, and C 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, B, and C inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
PI5C3390 Switching Characteristics over Operating Range
PI5C3390 Com Typ. 0.25 -- --
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ
Description Propagation Delay(2,3) A, B to/from C Bus Enable Time AEN/BEN to A, B, C Bus Disable Time AEN/BEN to A, B, C
Conditions(1) CL = 50 pF RL = 500ohm
Min. -- 1.5 1.5
Max. -- 6.5 5.5
Unit ns ns ns
PI5C32390 Switching Characteristics over Operating Range
PI5C32390 Com Typ. 1.25 -- --
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ
Description Propagation Delay A, B to/from C Bus Enable Time AEN/BEN to A, B, C Bus Disable Time AEN/BEN to A, B, C
(2,3)
Conditions(1) CL = 50 pF RL = 500ohm
Min. -- 1.5 1.5
Max. -- 6.5 5.5
Unit ns ns ns
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 0.25 ns for 50 pF 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.
3
PS7030E
09/15/04
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C3390; PI5C32390 16:8 Multiplexer/Demultiplexer Bus Switch
Packaging Mechanical: 28-pin QSOP (Q)
28
.008 0.20 MIN.
0.150 0.157
3.81 3.99
Guage Plane
.008 .013 0.20 0.33
.010 0.254
1 .386 9.804 .394 10.009
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.033 REF 0.84
1.35 .053 1.75 .069 SEATING PLANE
.015 x 45
Detail A
.007 0.178 .010 0.254 0.41 .016 1.27 .050 .228 .244 5.79 6.19
.025 BSC 0.635
.008 0.203 .012 0.305
.004 0.101 .010 0.254
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Ordering Information
Ordering Code PI5C3390Q PI5C3390QE PI5C32390Q PI5C32390QE Package Code Q Q Q Q Package Description 28-pin 150-mil wide plastic QSOP Pb-free & Green, 28-pin 150-mil wide plastic QSOP 28-pin 150-mil wide plastic QSOP Pb-free & Green, 28-pin 150-mil wide plastic QSOP
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
4
PS7030E 09/15/04

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