PI3B16862 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, 20-Bit, 2-Port NanoSwitch Product Features Product Description Logic Block Diagram Product Pin Configuration Near-zero propagation delay 5 ohms or 25 ohms switches connect inputs to outputs Fast Switching Speed - 5ns (max.) Direct bus connection when switches are ON 32X384 function with flow through pinout make board layout easier Vcc Operating Range: 3.0V to 3.6V Industrial operating temperature: 40°C to +85°C Packages available: 48-pin 150-mil wide plastic BQSOP (B) 48-pin 240-mil wide plastic TSSOP (A) 48-pin 300-mil wide plastic SSOP (V) A0 B0 SW SW A4 Pericom Semiconductors PI3B series of Bus Switch circuits are produced using the Companys advanced submicron CMOS technology, achieving industry leading speed. PI3B16862 is configured as a 3.3 Volt, 20-bit, hot-insertion 2-port bus switch designed with a low ON resistance (5 ohms) allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switch is turned ON by the Bus Enable (BEx) input signal. SW B4 A BE1 A15 SW B15 A19 SW B19 B BE BE4 Truth Table(1) Function BEx A19-A0 Disconnect H Hi- Z Connect L B19- B0 Note: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance BE2 A0 1 2 A1 A2 A3 A4 A5 A6 A7 A8 A9 GND BE4 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 GND 3 4 5 6 7 8 9 10 11 12 13 48-Pin A, B, V 48 47 46 45 44 43 42 41 40 39 38 37 36 14 15 16 35 34 33 17 18 32 31 19 20 21 22 30 29 28 27 23 24 26 25 VCC BE1 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 VCC BE3 B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 Product Pin Description Pin Name BEx 1 D e s cription Bus Enable Inputs (Active LO W) A19- A0 Bus A B19- B0 Bus B PS8200D 02/28/02 PI3B16862 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, 20-Bit, 2-Port Nano Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) 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. Storage Temperature ...................................................... 65°C to +150°C Ambient Temperature with Power Applied ...................... 40°C to +85°C Supply Voltage Range ....................................................... 0.5V to +4.6V DC Input Voltage ............................................................... 0.5V to +4.6V DC Output Current ........................................................................ 120mA Power Dissipation ............................................................................. 0.5W DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 3.0V to 3.6V) Parame te rs Te s t Conditions (1) De s cription M in. Typ.(2) M ax. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level 0.5 IIH Input HIGH Current VC C = Max., VIN = VC C ±1 IIL Input LOW Current VC C = Max., VIN = GND ±1 V 0.8 IO ZH High Impedance Output Current 0 £ A, B £ VC C VIK Clamp Diode Voltage VC C = Min., IIN = 18mA 0.7 1.2 VC C = Min., VIN = 0.0V, IO N = 48mA 5 8 VC C = Min., VIN = 2.4V, IO N = 15mA 10 15 RO N Switch ON Resistance(3) Units µA ±1 V W Capacitance (TA = 25°C, f = 1 MHz) Parame te rs (4) D e s cription CIN Input Capacitance C O FF A/B Capacitance, Switch O ff CON A/B Capacitance, Switch O n Te s t Conditions Typ. Units 3.0 VIN = 0V 8.5 pF 17.0 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 = 25°C 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. 2 PS8200D 02/28/02 PI3B16862 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, 20-Bit, 2-Port Nano Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range PI3B16862/PI3B1682612 Com. Parame te rs Conditions (1) De s cription tPLH tPHL Propagation Delay(2,3) Ax to Bx, Bx to Ax CL = 50pF RL = 500 ohms tPZH tPZL Bus Enable Time BEx to Ax or Bx tPHZ tPLZ Bus Disable Time BEx to Ax or Bx CL = 50pF, RL = 500 ohms, R = 500 ohms M in. M ax. Units 0.25 1 4.5 1 5 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 0.25ns 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. Power Supply Characteristics Parame te rs ICC D e s cription Conditions (1) M in. Type (2) M ax. Q uiescent Power Supply Current VCC = Max. VIN = GN D or VCC 10 DICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.0V(3) 750 ICCD Supply Current per Input per MHz(4) VCC = Max., A and B Pins O pen BE = GN D Control Input Toggling 50% Duty Cycle 0.25 Units µA 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 = 3.3V, +25°C ambient. 3. Per TTL driven input (control inputs 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. 3 PS8200D 02/28/02 PI3B16862 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, 20-Bit, 2-Port Nano Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 48-pin 240 Mil-Wide Thin Plastic TSSOP (A) Package 48 .236 .244 1 6.0 6.2 .488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE .004 0.09 .008 0.20 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .0197 BSC 0.50 0.45 .018 0.75 .030 .002 .006 0.05 0.15 .007 .010 0.17 0.27 .319 BSC 8.1 48-pin 300 Mil-Wide Plastic SSOP (V) Package 48 .291 .299 7.39 7.59 .395 .420 10.03 10.67 Gauge Plane .010 0.25 .02 0.51 .04 1.01 1 .620 .630 15.75 16.00 .015 0.381 x 45˚ .025 0.635 .008 0.20 Nom. .110 2.79 Max .025 BSC 0.635 .008 0.20 .0135 0.34 0-8˚ .008 0.20 .016 0.40 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 4 PS8200D 02/28/02 PI3B16862 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, 20-Bit, 2-Port Nano Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 48-pin 150 Mil-Wide Plastic BQSOP (B) Package 48 .150 .157 3.80 4.00 .228 .244 5.80 6.20 Gauge Plane .020 .029 0.50 0.75 .010 0.25 BSC 1 .014 0.356 REF .386 .394 9.80 10.00 .015 0.381 x 45˚ .008 0.20 Nom Nom .063 1.60 .002 0.05 .009 0.25 5˚ .0157 BSC 0.40 .0051 .009 0.13 0.23 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .079 2.0 Max Ordering Information Part Pin Package Te mpe rature PI3B16862A 48- TSSOP (A) PI3B16862V 48- SSOP (V) PI3B16862B 48- SSOP (B) 40°C to +85°C Applications Information Logic Inputs The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, IN may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption. Power-Supply Sequencing and Hot Plug Information Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to input/output or control pins. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd Pericom Semiconductor Corporation 2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com 5 PS8200D 02/28/02