PI3B16215 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, Hot Insertion, 20-Bit FET BusSwitch w/Precharged Outputs Product Features Product Description Near Zero Propagation Delay Pericom Semiconductors PI3B series of logic circuits are produced using the companys advanced 0.35 micron CMOS Technology. The PI3B16215 provides 20-bits of high-speed bus switching. Low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device also precharges the B-port to a user-selectable bias voltage (BIASV) to minimize liveinsertion noise. The device is organized as dual 10-bit bus switches with individual output-enable (OE) inputs. When OE is LOW, the corresponding 10-bit bus switch is on and port A is connected to port B. When OE is HIGH, the switch is open, a high-impedance state exists between the two ports, and port B is precharged to BIASV through the equivalent of a 10-kΩ resistor. To ensure the high-impedance state on power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver connected to OE. 5Ω Switches Connect Between Two Ports Fast Switching Speed: 4.5ns max. Permits Hot Insertion Isolation during Power-Off conditions B-Port Outputs are precharged by Bias Voltage to minimize signal distortion during live insertion Package options include: 48-pin 150-mil wide plastic BQSOP (B) 48-pin 240-mil wide plastic TSSOP (A) 48-pin 300-mil wide plastic SSOP (V) Logic Block Diagram 1 1A1 1A10 1OE 2A1 2A10 2OE 2 46 SW 12 BIASV Product Pin Configuration 1B1 BIASV 1A1 1A 2 1 A3 1A 4 1A 5 1A 6 GND 1A 7 1A8 1A 9 1A10 2 A1 2A 2 Vcc 2A 3 GND 2A 4 2A 5 2A 6 2A 7 2A 8 2A 9 2 A 10 36 1B10 SW 48 13 35 SW 24 25 SW 2B1 2B10 47 A B 48 1 47 2 46 3 45 4 44 5 43 6 42 7 8 41 9 40 10 48-Pin 39 11 A,B,V 38 12 37 13 36 14 35 15 34 16 33 17 32 18 31 19 30 20 29 21 28 22 27 23 26 24 25 1OE 2OE 1 B1 1B2 1B3 1B4 1B5 GND 1 B6 1B7 1B8 1B9 1B10 2 B1 2 B2 2 B3 GND 2 B4 2B5 2B6 2 B7 2B8 2 B9 2B10 OE 1 PS8190D 05/04/00 PI3B16215 3.3V, Hot Insertion, 20-Bit FET BusSwitch w/Precharged Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature Range, TSTG ...................................... 65ºC to +150ºC Supply Voltage Range, VCC ......................................... 0.5V to +4.6V Bias Voltage Range, BIASV ........................................ 0.5V to +4.6V Input Voltage Range ........................................................0.5V to +4.6V DC Output Current ....................................................................... 120mA 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. Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 3.0V to 3.6V) Parame te r BIASV De s cription Te s t Conditions Bias Voltage M in. Typ. 0 M ax. VCC VIH High- Level Control Input Voltage VCC = 2.7V to 3.6V 2 VIL Low- Level Control Input Voltage VCC = 2.7V to 3.6V 0.5 VIK Clamp Diode Voltage VCC = 3.0V II = 18mA Input Current VCC = 3.6V VI = VCC or GND ±5 High Impedance Output Current VCC = 0 VI = VO = 0 to 3.6V 10 IO Output Current VCC = 3.0V BIASV = 2.4V, VO = 0 ICC Quiescent Power Supply Current VCC = 3.6V IO = 0, VI = VCC or GND Supply Current VCC = 3.6V One Input at 3V, Other Inputs at VCC or GND CIN Input Capacitance VI = 3.0V or 0 C O FF A/B Capacitance Switch Off VO = 3.0V or 0 II IOZH ∆ICC(1) RON(2) Switch On Resistance VI = 0 VI = 2.4V Units 0.8 0.7 V 1.2 0.15 µA mA 10 750 µA 3.0 pF Switch Off 8.5 II = 64mA 5 8 II = 24mA 5 8 II = 15mA 10 15 Ω Notes: 1. This is the increase in supply current for each input (OE only) that is at the specified voltage level rather than VCC or GND. 2. Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On state resistance is determined by the lower of the voltages of the two (A or B) terminals. Truth Table OE Function L A port = B port H A port = Z, B Port = BIASV 2 PS8190D 05/04/00 PI3B16215 3.3V, Hot Insertion, 20-Bit FET BusSwitch w/Precharged Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range (Switching characteristics over recommended operating free-air temperature range unless otherwise noted) Parame te r Te s t Conditions From (Input) To (Output) A or B B or A tPD(1) tPZH BIASV = GND tPZL BIASV = 3V tPHZ BIASV = GND tPLZ BIASV = 3V VCC = 3.3V ±10% M in. M ax. Units 0.25 4.5 OE 4.5 A or B ns 5.0 5.0 Note: 1. The propagation delay is the calculated RC time of the typical on-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). Parameter Measurements (VCC = 2.7 and 3.3V ±10%) Test tPD tPLZ/tPZL tPHZ/tPZH Voltage Waveforms Propagation Delay Times S1 Open 6V GND Voltage Waveforms Enable and Disable Times Figure 2. Load Circuit and Voltage Waveforms Notes: 1. CL includes probe and jig capacitance. 2. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 3. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. 4. The outputs are measured one at a time with one transition per measurement. 5. tTPZ and tPHZ are the same as tDIS 6. tPZL and tPZH are the same as tEN 7. tPLH and tPHL are the same as tPD 3 PS8190D 05/04/00 PI3B16215 3.3V, Hot Insertion, 20-Bit FET BusSwitch w/Precharged Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 48-Pin 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 .0197 BSC 0.50 X.XX X.XX 0.45 .018 0.75 .030 .002 .006 0.05 0.15 .007 .010 0.17 0.27 .319 BSC 8.1 DENOTES DIMENSIONS IN MILLIMETERS 48-Pin BQSOP (B) Package 48 .150 .157 3.80 4.00 .228 .244 5.80 6.20 Gauge Plane .010 0.25 BSC 1 .014 0.356 REF .386 .394 9.80 10.00 .020 .029 0.50 0.75 .015 0.381 x 45˚ .008 0.20 Nom Nom .063 1.60 .0157 BSC 0.40 5˚ .0051 .009 0.13 0.23 .079 2.0 Max .002 0.05 .009 0.25 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 4 PS8190D 05/04/00 PI3B16215 3.3V, Hot Insertion, 20-Bit FET BusSwitch w/Precharged Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 48-Pin 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 .015 0.381 x 45˚ .025 0.635 .008 0.20 Nom. .620 .630 15.75 16.00 .110 2.79 Max 0-8˚ .008 0.20 .016 0.40 .008 0.20 .0135 0.34 .025 BSC 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Order Information Part Pin - Package Width PI3B16215A 56- TSSO P (A56) 240- mil PI3B16215B 56- BQ SO P (B56) 150- mil PI3B16215V 300- mil 56- SSO P (V56) Te mpe rature 40ºC to +85ºC 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 Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC before applying VBIAS and 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 PS8190D 05/04/00