PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables Features Description • Near-Zero propagation delay Pericom Semiconductor’s PI3C3126 is a 2.5 volt or 3.3 volt, 4-bit bus switch designed with four individual 5-ohm bus switches with fast indiviual enables in an industry standard 74XX125/126 pinout. When enabled via the associated Bus Enable pin, the “A” pin is directly connected to the “B” pin for that particular gate. The bus switch introduces no additional propagation delay or additional ground bounce noise. • 5-ohm switches connect inputs to outputs • High Bandwidth (>400 MHz) • 2.5V/3.3V Supply Voltage Operation • Rail-to-Rail, or 2.5V or 3.3V Switching • 5V I/O Tolerant The PI3C3126 has active HIGH enables. It is very useful in switching signals that have high bandwidth (>400 MHz). • Permits Hot Insertion • Packaging (Pb-free & Green available): – 14-pin 150-mil wide plastic SOIC (W) – 14-pin 170-mil wide plastic TSSOP (L) – 16-pin 150-mil wide plastic QSOP (Q) – 16-contact TDFN (ZJ) Applications • High Bandwidth Data Switching • Hot Docking Block Diagram B0 A0 BE0 B1 A1 BE1 B2 A2 BE2 B3 A3 BE3 09-0072 1 PS9087 10/29/09 PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature............................................................. –65°C to +150°C Ambient Temperature with Power Applied............................ –40°C to +85°C Supply Voltage to Ground Potential (Inputs & VCC Only)......–0.5V to +4.6V Supply Voltage to Ground Potential (Outputs & D/O Only)...–0.5V to +4.6V DC Input Voltage.....................................................................–0.5V to +5.5V DC Output Current................................................................................ 120mA Power Dissipation.................................................................................... 0.5W 14-Pin Configuration BE0 A0 B0 BE1 A1 B1 GND 1 14 2 13 3 14-PIN 12 4 W14 11 5 L14 10 6 9 7 8 VCC GND 09-0072 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. 16-Pin Configuration NC BE0 A0 B0 BE1 A1 B1 GND Vcc BE3 A3 B3 BE2 A2 B2 1 16 2 15 3 16-PIN 14 4 Q16 13 5 12 6 11 7 10 8 9 Vcc BE3 A3 B3 BE2 A2 B2 NC Truth Table(1) Pin Description Pin Name BEn A3 - A0 B3 - B0 Note: Description Switch Enable Bus A Bus B BEn X L H Power Ground An Bn VCC Hi-Z Hi-Z Bn Hi-Z Hi-Z An GND VCC VCC Function Disconnect Disconnect Disconnect Note: 1. H = High Voltage Level, L = Low Voltage Level HI-Z = High Impedance, X = Don’t Care * A pull-up resistor should be provided for power-up protection. 2 PS9087 10/29/09 PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables DC Electrical Characteristics (Over Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters VIH VIL IIH IIL VIK Description Input HIGH Voltage Input LOW Voltage Input HIGH current Input LOW Current High Impedance Output Current Clamp Diode Voltage RON Switch ON Resistance(4) IOZH(3) Test Conditions(1) Guearanteed Logic HIGH Level Guaranteed Logic LOW Level –0.5 VCC = Max., VIN = VCC VCC = Max., VIN = GND Min. 2.0 Typ.(2) Max Units V 0.8 ±1 ±1 0 ≤ A, B ≤ VCC µA ±1 VCC = Min., IIN = –18mA VCC = Min., VIN = 0.0V, ION = 48mA or 60mA VCC = Min., VIN = 2.4V, ION = 15mA –0.73 –1.2 V 5 8 7 15 Ω 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. 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 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. Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) 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. 3.5 5.0 10.0 Units Min. Typ.(2) Max. 260 500 pF Notes: 1. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters Description Quiescent Power Supply Current Supply Current per Input HIGH ICC ∆ICC Test Conditions VCC = Max VIN = GND or VCC VCC = Max VIN = 3.0V(3) 750 Units µA 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 driven input (control input only); A and B pins do not contribute to ΔICC. 09-0072 3 PS9087 10/29/09 PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables Switching Characteristics over 3.3V Operating Range Com. Parameters Description Conditions tPLH tPHL Propogation Delay(1,2) A to B, B to A CL =50pF RL = 500Ω Bus Enable Time CL =50pF RL = 500Ω R = 500Ω tPZH tPZL tPHZ tPLZ Bus Disable Time Min. Max. Units 0.25 1.5 6.5 1.5 5.5 ns Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 2. 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. Switching Characteristics over 2.5V Operating Range Parameters Description Delay(1,2) tPLH tPHL tPZH tPZL tPHZ tPLZ Com. Min. Conditions Propogation A to B, B to A CL =50pF RL = 500Ω Bus Enable Time CL =50pF RL = 500Ω R = 500Ω Bus Disable Time Max. Units 0.25 1.5 9.8 1.5 8.3 ns Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 2. 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. 09-0072 4 PS9087 10/29/09 PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables 4.0 VCC V 3.8V 3.6V 3.1V 2.9V 3.4V 3.2V 2.7V 2.5V 3.0V 2.8V 2.0 VOUT ) 2.3V 0.0 0.0 1.0 3.0 2.0 4.0 5.0 VIN (V) Switch Output Voltage vs. Input Voltage over Various Supply Voltages DOCUMENT CONTROL NO. PD - 1002 14 REVISION: E DATE: 03/09/05 .149 .157 1 .336 .344 8.55 8.75 .0075 .0098 0-8˚ .053 .068 0.41 1.27 1.35 1.75 1 .013 .020 0.330 0.508 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Notes: 1) Controlling dimensions in millimeters. 2) Ref: JEDEC MS-012D/AB 0.19 0.25 .016 .050 .2284 .2440 5.80 6.20 SEATING PLANE REF .050 BSC 1.27 0.25 x 45˚ 0.50 .0099 .0196 .0155 .026 0.393 0.660 09-0072 3.78 3.99 .0040 0.10 .0098 0.25 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com DESCRIPTION: 14-Pin, 150-Mil Wide, SOIC PACKAGE CODE: W 5 PS9087 10/29/09 PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables DOCUMENT CONTROL NO. PD - 1309 REVISION: C DATE: 03/09/05 14 0.169 0.177 1 4.3 4.5 0.45 0.75 0.018 0.030 0.240 0.264 1 0.193 0.201 4.90 5.10 6.1 6.7 0.047 1.20 max. SEATING PLANE 0.002 0.05 0.006 0.15 0.007 0.012 0.19 0.30 0.0256 typical 0.65 0.004 0.09 0.008 0.20 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Note: 1. Package Outline Exclusive of Mold Flash and Metal Burr 2. Controlling dimentions in millimeters 3. Ref: JEDEC MO-153F/AB-1 DESCRIPTION: 14-Pin, 44mm Wide, TSSOP PACKAGE CODE: L DOCUMENT CONTROL NO. PD - 1201 REVISION: G 16 .008 0.20 MIN. .150 .157 3.81 3.99 Guage Plane .010 0.254 1 DATE: 11/07/07 .008 .013 0.20 0.33 Detail A .189 .197 4.80 5.00 0˚-6˚ .016 .035 0.41 0.89 .041 1.04 REF .015 x 45° 0.38 1 .008 0.203 REF .053 1.35 .069 1.75 Detail A .007 0.178 .010 0.254 SEATING PLANE .025 BSC 0.635 .008 .012 0.203 0.305 .004 0.101 .010 0.254 .228 .244 5.79 6.19 X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Note: 1) Controlling dimensions in inches. 2) Ref: JEDEC MO-137B/AB. 3) Dimensions do not include mold flash, protrusions or gate burrs 09-0072 DESCRIPTION: 16-Pin 150-Mil Wide QSOP PACKAGE CODE: Q 6 PS9087 10/29/09 PI3C3126 2.5V/3.3V, High Bandwidth, Hot Insertion,4-Bit, 2-Port Bus Switch with Individual Enables 1 DATE: 07/28/08 DESCRIPTION: 16-contact, Thin Dual-in-line Flat No-Lead (TDFN) PACKAGE CODE: ZJ (ZJ16) DOCUMENT CONTROL #: PD-2042 REVISION: C 08-0339 Note: • For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php Ordering Information Ordering Code PI3C3126LE PI3C3126WE PI3C3126QE PI3C3126ZJE Packaging Code Package Type Top Mark L W Q ZJ Pb-free & Green, 14-pin TSSOP Pb-free & Green, 14-pin SOIC Pb-free & Green, 16-pin QSOP Pb-free & Green, 16-pin TDFN TA Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 09-0072 7 PS9087 10/29/09