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PI3B16209 PI3B162209 (25)
3.3V, 18-Bit Bus Exchange Switch
Product Features
* * * * * * Near-zero propagation delay 5 switches connect inputs to outputs Fast Switching speed - 5ns (max.) Operating Range: 3.0V to 3.6V Industrial operating temperature: -40C to +85C Packages available: - 48-pin 240-mil wide thin plastic TSSOP (A) - 48-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor's PI3B series of logic circuits are produced in the Company's advanced 0.35 micron CMOS technology. The PI3B16209 and PI3B162209 are 3.3 volt, 18-bit bus exchange switches designed with a low ON resistance (5) allowing inputs to be connected directly to outputs. The devices operate as an 18-bit bus switch or as a 9-bit exchanger, providing data exchange between the four signal ports via the data select pins (S0-S2). The PI5C162209 device has a built-in 25-ohm series resistor to reduce noise resulting from reflections, thus eliminating the need for an external terminating resistor.
Logic Block Diagram
ONE OF NINE CHANNELS 1A1 1B1
Product Pin Configuration
S0
1A1 1A2
GND
2A1 2A2
1A2
1B2
VCC
3A1 3A2
FLOW CONTROL S0 S1 S2
GND
4A1 4A2 5A1 5A2
GND
6A1
Truth Table
Function Disconnect A1 to B1 A1 to B2 A2 to B1 A2 to B2 Disconnect A1 to B1, A2 to B2 A1 to B2, A2 to B1 S2 L L L L H H H H S1 L L H H L L H H S0 L H L H L H L H A1 Z B1 B2 Z Z Z B1 B2 A2 Z Z Z B1 B2 Z B2 B1
6A2 7A1 7A2
48 47 46 45 44 43 42 41 8 40 9 39 10 48-PIN 38 11 A, V 37 12 36 13 35 14 34 15 33 16 32 17 31 18 30 19 1 2 3 4 5 6 7 20 21 22 23 24 29 28 27 26 25
S1 S2
1B1 1B2 2B1 2B2
GND
3B1 3B2
GND
4B1 4B2 5B1 5B2
GND
6B1 6B2 7B1 7B2
GND
8A1 8A2 9A1 9A2
GND
8B1 8B2 9B1 9B2
Product Pin Description
Pin Name S0-S2 xAx xBx
1
Note: 1. H = High Voltage Level L = Low Voltage Level Z = High Impedance
I/O I I/O I/O
Description Select Inputs Bus A Bus B
PS8192B 11/09/98
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3B16209/162209 3.3V, 18-Bit Bus-Exchange 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 .................................. -0C to +85C Supply Voltage Range .................................................................. -0.5V to +4.6V DC Input Voltage ......................................................................... -0.5V to +4.6V 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 = 3.0V to 3.6V)
Parameters Description VIH VIL IIH IIL IOZH VIK RON Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Switch On Resistance
(3)
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 A, B VCC VCC = Min., IIN = -18mA VCC = Min., VIN = 0.0V, ION = 48mA VCC = Min., VIN = 2.4V, ION = 15mA 16209 162209 16209 162209
Min. 2.0 -0.5 -- -- -- -- -- 20 -- 20
Typ(2) -- -- -- -- -- -0.7 5 28 10 35
Max. -- 0.8 1 1 1 -1.2 8 40 15 48
Units V V A A A V
Capacitance (TA = 25C, f = 1 MHz)
Parameters(4) 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 14 30 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 = 3.3V, TA = 25C ambient and maximum loading. 3. 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. 4. This parameter is determined by device characterization but is not production tested.
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PS8192B
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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) Test Conditions(1) VCC = Max. VCC = Max. VCC = Max. A and B Pins Open BE = GND Control Input Toggling 50% Duty Cycle VIN = GND or VCC VIN = 3.0V(3) Min. Typ(2) Max. 10 750 0.25 Units A A mA/ MHz
Switching Characteristics over Operating Range
Com.
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propagation Delay Ax to Bx, Bx to Ax Bus Enable Time BE to Ax or Bx Bus Disable Time BE to Ax or Bx
(2,3)
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.
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PI3B16209/162209 3.3V, 18-Bit Bus-Exchange Switch
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.
Conditions
(1)
Min.
Max.
Units
Cl = 50pF 16209 Rl = 500 162209 Cl = 50pF, RL= 500, R = 500
1 1
0.25 1.25 4.5 5
ns
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
3
PS8192B 11/09/98

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