PI3B3253 3.3V, Dual 4:1 Mux/DeMux NanoSwitch™ Features Description • Near-Zero propagation delay Pericom Semiconductor’s PI3B3253 is a 3.3V, Dual4:1 Multiplexer/ Demultiplexer with Hi-Z outputs that is pinout compatible with the PI74FCT253T, 74F253, and 74ALS/AS/LS 253. Inputs can be connected to outputs with low On-Resistance (5Ω) with no additional ground bounce noise or propagation delay. • 5Ω switches connect inputs to outputs • Fast Switching Speed: 5.2ns max. • Ultra Low Quiescent Power (0.2µA typical) – Ideally suited for notebook applications • Pin compatible with 74 series 253 logic devices • Packaging (Pb-free & Green available): – 16-pin 150-mil wide plastic QSOP (Q) – 16-pin 173-mil wide plastic TSSOP (L) Pin Configuration Block Diagram IA1 IA0 IA2 IA3 IB0 IB1 IB2 IB3 SW EA SW SW SW EB SW Y I S0 SW SW S1 E SW SW YA 1 16 VCC S1 2 15 EB IA3 3 14 S0 IA2 4 13 IB3 IA1 5 12 IB2 IA0 6 11 IB1 YA 7 10 IB0 GND 8 9 YB YB Truth Table(1) Enable EA Pin Description Select YA YB Function EA EB S1 S0 H X X X Hi-Z X Disable A X H X X X Hi-Z Disable B L L L L IA 0 IB0 S1-0 = 0 L L L H IA 1 IB1 S1-0 = 1 L L H L IA 2 IB2 S1-0 = 2 L L H H IA 3 IB3 S1-0 = 3 Pin Name IAN, IBN S0-1 EA, EB YA, YB GND VCC Description Data Inputs Select Inputs Enable Data Outputs Ground Power Note: 1. H = High Voltage Level, L = Low Voltage Level 11-0009 1 01/10/11 PI3B3253 3.3V, Dual 4:1 Mux/DeMux NanoSwitch™ Maximum Ratings (Above which the 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 to Ground Potential ................................................–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 =3.3V ±10%) Parameters Test Conditions(1) Description Min. Typ.(2) Max. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level –0.5 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ IN, YN ≤ VCC ±1 VIK Clamp Diode Voltage VCC = Min., IIN = –18mA RON Switch On-Resistance(3) Units V 0.8 µA –1.2 VCC = Min., VIN = 0.0V, ION = 48mA or 64mA 5 8 VCC = Min., VIN = 2.4V, ION = 15mA 10 17 V 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. Measured by the voltage drop between I and Y pin at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (I,Y) pins. Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) CIN Description Test Conditions Input Capacitance COFF IA/IB Capacitance, Switch Off CON IA/IB Capacitance, Switch On Typ. Units 3.0 VIN = 0V 8.0 pF 36.0 Notes: 1. This parameter is determined by device characterization but is not production tested. 11-0009 2 01/10/11 PI3B3253 3.3V, Dual 4:1 Mux/DeMux NanoSwitch™ Power Supply Characteristics Parameters Test Conditions(1) Description ICC Quiescent Power Supply Current ΔICC Supply Current per Input @ TTL HIGH VCC = Max. VCC = Max. Min. Typ.(2) Max. 0.1 3.0 VIN = GND or VCC VIN = Units µA 3.0V(3) 750 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); I and Y pins do not contribute to ICC. Switching Characteristics over Operating Range Parameters Description tIY Propagation Delay(1,2) In to Yn tSY Bus Select Time, Sn to Yn tPZH Bus Enable Time, E to Yn tPHZ tPLZ Bus Disable Time, En to Y Test Conditions Com. Min. Max. Units 0.25 CL = 50pF RL = 500Ω 1 4.0 1 3.8 1 5.2 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. 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. 11-0009 3 01/10/11 PI3B3253 3.3V, Dual 4:1 Mux/DeMux NanoSwitch™ Packaging Mechanical: 16-Pin QSOP (Q) 16 .008 0.20 MIN. .150 .157 3.81 3.99 Guage Plane .010 0.254 1 .041 1.04 REF .015 x 45° 0.38 .053 1.35 .069 1.75 Detail A .008 .012 0.203 0.305 .007 .010 0.178 0.254 0.41 .016 1.27 .050 SEATING PLANE 11-0009 0˚-6˚ .016 .035 0.41 0.89 Detail A .189 .197 4.80 5.00 .008 0.203 REF .025 BSC 0.635 .008 .013 0.20 0.33 .228 .244 5.79 6.19 .004 0.101 .010 0.254 X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX 4 01/10/11 PI3B3253 3.3V, Dual 4:1 Mux/DeMux NanoSwitch™ Packaging Mechanical: 16-Pin TSSOP (L) 16 .169 .177 1 .193 .201 4.9 5.1 4.3 4.5 .004 .008 .047 max. 1.20 0.45 .018 0.75 .030 SEATING PLANE .0256 BSC 0.65 .007 .012 .002 .006 0.09 0.20 .252 BSC 6.4 0.05 0.15 0.19 0.30 Ordering Information Ordering Code Package Code Package Desciption PI3B3253QE Q Pb-free & Green, 16-pin QSOP PI3B3253LE L Pb-free & Green, 16-pin TSSOP 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 11-0009 5 01/10/11