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| PO3B3245A 8-Bit, 2-Port Bus Switch High Bandwidth Potato Chip 10/16/07 FEATURES: * Patented technology * High signal -3db passing bandwidth at 1.35GHz * Near-Zero propagation delay * VCC = 1.65V to 3.6V * Ultra-Low Quiescent Power: 0.1A typical * Ideally suited for low power applications * Industrial operating temperature: -40C to +85C * Available in 20pin TSSOP package DESCRIPTION: Potato Semiconductor's PO3B3245A is designed for world top performance using submicron CMOS technology to achieve GHz high bandwidth. The PO3B3245A is a 8-Bit, 2-Port Bus Switch. The switch introduces no additional ground bounce noise or propagation delay. Pin Configuration NC A0 A1 A2 A3 A4 A5 A6 A7 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Block Diagram Vcc BE B0 B1 B2 B3 A0 SW B0 A7 SW B7 B4 B5 SW BE A B B6 B7 BE Pin Description Pin Name BE A0-7 B0-7 GND VCC Description Bus Enable Input (Active LOW) Bus A Bus B Ground Power Truth Table Function Disconnect Connect BE H L A0-7 Hi-Z B0-7 1 Copyright (c) Potato Semiconductor Corporation PO3B3245A 8-Bit, 2-Port Bus Switch High Bandwidth Potato Chip 12/26/08 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 ................................................ -65C to +150C Ambient Temperature with Power Applied ............... -40C to +85C Supply Voltage to Ground Potential ........................... -0.5V to +4.6V DC Input Voltage ........................................................ -0.5V to +Vcc DC Output Current................................................................... 120mA Power Dissipation ....................................................................... 0.5W (Over the Operating Range, TA = -40C to +85C, VCC = 3.3V 10%) Parameters VIH VIL IIH IIL IOZH RON Description Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current DC Electrical Characteristics, 3.3V Supply Test Conditions Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., VIN = 0.0V, Switch On-Resistance ION = -48 mA or -64mA VCC = Min., VIN = VCC , ION = -15 mA Min. 2.0 0.8 1 1 1 12 12 18 18 A Typ. Max. Units V High Impedance Output Current 0 Y, In VCC (Over Operating Range, TA = -40C to +85C, VCC = 2.5V 10%) Parameters VIH VIL IIH IIL IOZH RON Description Input HIGH Voltage Inout LOW Voltage Input HIGH Current Input LOW Current High Impedance Current Switch On Resistance DC Electrical Characteristics, 2.5V Supply Test Conditions Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 Y, In VCC VCC = Min., VIN = 0.0V, ION = -48mA VCC = Min., VIN = 2.25V, ION = -15mA 18 18 Min. 1.8 -0.3 Typ. Max. VCC + 0.3 0.8 1 1 1 22 22 A Units V 2 Copyright (c) Potato Semiconductor Corporation PO3B3245A 8-Bit, 2-Port Bus Switch High Bandwidth Potato Chip 10/15/07 Power Supply Characteristics Symbol Description Quiescent Power Supply Current Test Conditions (1) Vcc=Max, Vin=Vcc or GND Min Typ Max Unit Icc Notes: 1. 2. 3. 4. 5. - 0.1 3 uA For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at Vcc = 3.3V, 25C ambient. This parameter is guaranteed but not tested. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. VoH = Vcc - 0.6V at rated current Capacitance Parameters CIN COFF CON (TA = 25C f = 1 MHz) Test Conditions VIN = 0V VIN = 0V VIN = 0V Typ. 3.0 5.0 10.0 Units pF pF pF Description Input Capacitance A/B Capacitance, Switch Off A/B Capacitance, Switch On Dynamic Electrical Characteristics Over the Operating Range (TA = -40 to +85, VCC = 3.3V 10%) Parameter XTALK OIRR BW Description Crosstalk Off-Isolation -3dB Bandwidth Test Condition RL = 100 RL = 100 RL = 100 Typ. -60 -60 1.35 Units dB GHz Switching Characteristics over 3.3V Operating Range Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propogation Delay Bus Enable Time See Test Diagram Bus Disable Time 3.0 Conditions See Test Diagram Max. 0.3 2.0 ns Units 3 Copyright (c) Potato Semiconductor Corporation PO3B3245A 8-Bit, 2-Port Bus Switch High Bandwidth Potato Chip 10/16/07 Switching Characteristics over 2.5V Operating Range Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propogation Delay Bus Enable Time See Test Diagram Bus Disable Time 3.0 Conditions See Test Diagram Max. 0.3 2.0 ns Units Test Circuit for Electrical Characteristics 6.0V VCC Switch Positions Test tPLZ, tPZL tPHZ, tPZH Prop Delay Switch 6.0V GND Open 200-ohm Pulse Generator VIN VOUT D.U.T RT 10pF CL 200-ohm Switching Waveforms SEL 2.5V 1.25V tPZL VDD/2 1.25V 0V Output tPLZ VOL +0.3V tPHZ VDD/2 Output VOH -0.3V VOH VOL VOH VOL 3.5V Input tPLH Output 2.5V 2.5V 2.5V 1.5V tPHL VOH 2.5V VOL tPZH Voltage Waveforms Propagation Delay Times Voltage Waveforms Enable and Disable Times 4 Copyright (c) Potato Semiconductor Corporation PO3B3245A 8-Bit, 2-Port Bus Switch High Bandwidth Potato Chip 10/09/07 Packaging Mechanical Drawing: 20 pin TSSOP 20 .169 .177 4.3 4.5 .018 .030 0.45 0.75 .238 .269 6.1 6.7 1 .252 .260 6.4 6.6 .047 1.20 Max .004 0.09 .008 0.20 SEATING PLANE .0256 BSC 0.65 .007 .012 0.19 0.30 .002 0.05 .006 0.15 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 5 Copyright (c) Potato Semiconductor Corporation PO3B3245A 8-Bit, 2-Port Bus Switch High Bandwidth Potato Chip 10/15/07 Ordering Information Ordering Code PO3B3245ATU PO3B3245ATR 20-pin TSSOP 20-pin TSSOP Package Tube Tape and reel Pb-free & Green Pb-free & Green Top-Marking PO3B3245AT PO3B3245AT TA -40C to 85C -40C to 85C IC Package Information PACKAGE CODE PACKAGE TYPE TAPE WIDTH (mm) TAPE PITCH (mm) PIN 1 LOCATION TAPE TRAILER LENGTH QTY PER REEL TAPE LEADER LENGTH QTY PER TUBE T TSSOP 20 16 8 Top Left Corner 39 (12") 3000 64 (20") 74 6 Copyright (c) Potato Semiconductor Corporation |
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