PI3C32X384 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 2.5V/3.3V, High Bandwidth, Hot Insertion 20-Bit, 2-Port, Bus Switch Product Features • • • • • • • Product Description Near-zero propagation delay 5 ohm switches connect inputs to outputs (PI3C32X384) High Bandwidth (>400 MHz) Permits Hot Insertion. 5V I/O Tolerant 2.5V Supply Voltage Operation Packages available: – 48-pin 150-mil wide plastic BQSOP (B) Pericom Semiconductor’s PI3C series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry performance. The PI3C32X384, is a 2.5V or 3.3Volt, high-bandwidth 20-bit, 2-port bus switches designed with a low ON resistance 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. Four bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses. Applications • High Bandwidth Data switching • Hot Docking Product Pin Configuration B5 BEA B0 A0 B9 A1 B1 B2 Logic Block Diagram A0 B0 A4 B4 A15 B15 A19 B19 A5 A9 A10 A2 A3 B3 B10 A14 B4 A4 GND BEC B5 A5 B14 BEA BEB A6 B6 B7 BEC BED Truth Table(1) Function Disconnect Connect Connect Connect Function Disconnect Connect Connect Connect BEA H L H L BEC H L H L BE B H H L L BED H H L L B0-B4 Hi-Z A4-A0 Hi-Z A4-A0 B9-B5 Hi-Z A9-A5 Hi-Z A9-A5 B5-B9 Hi-Z Hi-Z A19-A15 A19-A15 B14-B10 Hi-Z Hi-Z A14-A10 A14-A10 1 2 48 47 VCC B19 3 4 5 6 46 45 44 43 A19 A18 B18 B17 7 8 42 41 A17 A16 48-Pin 40 39 B 38 37 36 35 34 33 32 31 30 29 28 27 26 25 B16 B15 A15 9 10 11 12 13 14 15 16 17 18 A7 A8 B8 19 20 B9 22 23 24 A9 GND 21 BEB VCC B14 A14 A13 B13 B12 A12 A11 B11 B10 A10 BED Product Pin Description Pin Name BEX A19 - A0 B19 - B0 GND VCC Note: 1. H = High Voltage Level, X = Don’t Care, L = Low Voltage Level, Hi-Z = High Impedance 1 Description Bus Enable Inputs (Active LOW) Bus A Bus B Ground Power PS8430B 11/18/02 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ......................................................... –65°C to +150°C 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. Ambient Temperature with Power Applied ............................. –40°C to +85°C Supply Voltage to Ground Potential ........................................ –0.5V to +4.6V DC Input Voltage .................................................................... –0.5V to +5.5V DC Output Current .............................................................................. 120mA Power Dissipation ................................................................................. 0.5W DC Electrical Characteristics (Over Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) 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 — 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC — — ±1 IIL Input LOW Current VCC = Max., VIN = GND — — ±1 High- Impedence Output Current 0 ≤ A, B ≤ VCC — — ±1 VIK Clamp diode Voltage VCC = Min., IIN = –18mA — –0.73 –1.2 VCC = Min.,VIN = 0.0V ION = 48mA or 64mA — 5 7 VCC = Min.,VIN = 2.4V ION = 15mA — 8 15 RON V µA IOZH Switch On Resistance(3) Units V Ω Capacitance (TA = 25°C f = 1 MHz) Parame te rs (4) De s cription CIN Input Capacitance COFF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On Te s t Conditions Typ. Units 3.5 VIN = 0V 5.0 pF 10.0 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 PS8430B 11/18/02 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parame te rs Te s t Conditions (1) De s cription M in. Typ.(2) M ax. 0.50 1. 0 ICC Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — ∆ICC Supply Current per Input @ TTL HIGH VCC = Max., VIN = 3.0V(3) — Units mA — 2.5 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. Switching Characteristics over 3.3V Operating Range Parame te rs De s cription tPLH tPHL Propogation Delay(2,3) Ax to Bx, Bx to Ax tPZH tPZL Bus Enable Time BEx to Ax or Bx tPHZ tPLZ Bus Disable Time BEx to Ax or Bx Conditions (1) C L = 50pF RL = 500- ohm Com. M in. M a x. — 0.25 1.5 6.5 1.5 5.5 Units ns Switching Characteristics over 2.5V Operating Range Parame te rs De s cription tPLH tPHL Propogation Delay(2,3) Ax to Bx, Bx to Ax tPZH tPZL Bus Enable Time BEx to Ax or Bx tPHZ tPLZ Bus Disable Time BEx to Ax or Bx Conditions (1) C L = 50pF RL = 500- ohm Com. M in. M a x. — 1.25 1.5 9.8 1.5 8.3 Units 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. 3 PS8430B 11/18/02 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 4.0 VCC = 3.3V 3.1V 2.9V 2.7V 2.5V VOUT, (V) 2.3V 3.8V 3.6V 3.4V 3.2V 3.0V 2.8V 2.0 0.0 0.0 1.0 3.0 2.0 4.0 5.0 VIN, (V) Output Voltage vs. Input Voltage over Various Supply Voltages 4 PS8430B 11/18/02 PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 48-pin BQSOP (package code B) 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 .386 .394 9.80 10.00 .014 0.356 REF .015 0.381 x 45˚ .008 0.20 Nom Nom .063 1.60 5˚ .0157 BSC 0.40 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .0051 .009 0.13 0.23 .079 2.0 Max .002 0.05 .009 0.25 Ordering Information Part Pin - Package Dime ns ions PI3C32X384B 48 - BQSOP (B) –40°C to +85°C Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 5 PS8430B 11/18/02