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Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
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Technical content

Features

  • Near-Zero propagation delay 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 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) Block Diagram Truth Table(1) Enable Select YA YB FunctionEA 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 IA0 I B0 S1-0 = 0 L L L H IA1 IB1 S1-0 = 1 L L H L IA2 I B2 S1-0 = 2 L L H H IA3 I B3 S1-0 = 3

Description

Pericom Semiconductor ’s PI3B3253 is a 3.3V , Dual4:1 Multi- plexer/ 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. Pin Configuration Pin Description Pin Name Description IAN, IBN Data Inputs S0-1 Select Inputs EA, EB Enable YA, YB Data Outputs GND Ground VCC Power Note: H = High V oltage Level, L Low V oltage Level I Y E SW IA0 EA EB IA1 IA2 IA3 IB0 IB1 IB2 IB3 YA YB SW SW SW SW SW SW SW SW VCC IB3 IB2 IB1 IB0 YB YA EA GND IA3 IA2 IA1 IA0 EB PI3B3253 3.3V, Dual 4:1 Mux/DeMux NanoSwitch™ 11-0009

3.3V, Dual 4:1 Mux/DeMux NanoSwitch ™ Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description Test Conditions Typ. Units CIN Input Capacitance VIN = 0V 3.0 pFCOFF IA/IB Capacitance, Switch Off 8.0 CON IA/IB Capacitance, Switch On 36.0 Parameters Description T est Conditions(1) Min. Typ.(2) Max. Units VIH Input HIGH V oltage Guaranteed Logic HIGH Level 2.0 VVIL Input LOW V oltage Guaranteed Logic LOW Level –0.5 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 µAIIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ IN, YN ≤ VCC ±1 VIK Clamp Diode V oltage VCC = Min., IIN = –18mA –1.2 V RON Switch On-Resistance(3) VCC = Min., VIN = 0.0V, ION = 48mA or 64mA 5 8 Ω VCC = Min., VIN = 2.4V, ION = 15mA 10 17 Notes: 1. This parameter is determined by device characterization but is not production tested. Ambient T emperature with Power Applied to +85°C Supply V oltage to Ground Potential to +4.6V DC Input V to +4.6V DC Output Current Power Dissipation Note: Stresses greater than those listed under MAXIMUM RA TINGS may cause permanent damage to the de vice. This is a stress rating only and functional op eration of the device at these or any other conditions above those indicated in the operatio nal sections of t his s pecification i s n ot i mplied. E xposure t o a bsolute m aximum r ating c onditions f or e xtended p eriods m ay af fect reliability. Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Notes: 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. 11-0009

3.3V, Dual 4:1 Mux/DeMux NanoSwitch ™ Power Supply Characteristics Parameters Description Test Conditions(1) Min. Typ.(2) Max. Units ICC Quiescent Power Supply Current V CC = Max. VIN = GND or VCC 0.1 3.0 µA ΔICC Supply Current per Input TTL HIGH VCC = Max. V IN = 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. Per TTL driven input (control inputs only); I and Y pins do not contribute to ICC. Switching Characteristics over Operating Range Parameters Description Test Conditions Com. UnitsMin. Max. tIY Propagation Delay(1,2) In to Yn CL = 50pF RL = 500Ω 0.25 ns tSY Bus Select T ime, Sn to Yn 1 4.0 tPZH Bus Enable T ime, E to Yn 1 3.8 tPHZ tPLZ Bus Disable T ime, En to Y 1 5.2 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 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

3.3V, Dual 4:1 Mux/DeMux NanoSwitch ™ .189 .197 .053 .069 .004 .010 SEATING PLANE .025 BSC .007 .010.228 .244 .150 .157 .016 .050 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 0.635 4.80 5.00 1.35 1.75 5.79 6.19 0.101 0.254 .008 .012 0.203 0.305 3.81 3.99 0.178 0.254 0.38 0.41 1.27 .008 0.203 .015 x 45° REF Detail A Detail A .008 0.20 MIN. Guage Plane .010 0.254 .041 1.04 REF .016 .035 0.41 0.89 0˚-6˚ .008 .013 0.20 0.33 Packaging Mechanical: 16-Pin QSOP (Q) 11-0009

3.3V, Dual 4:1 Mux/DeMux NanoSwitch ™ Pericom Semiconductor Corporation • 1-800-435-2336 • www .pericom.com

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 = T ape/Reel Packaging Mechanical: 16-Pin TSSOP (L) .193 .201 .047 max. .002 .006 SEATING PLANE.0256 BSC .018 .030 .004 .008 .252 BSC .169 .177 0.05 0.15 6.4 0.45 0.75 0.09 0.20 4.3 4.5 1.20 4.9 5.1 0.65 0.19 0.30 .007 .012 11-0009