PO3B16861A 20-Bit, 2-Port Bus Switch 03/16/08 High Bandwidth Potato Chip FEATURES: DESCRIPTION: • Patented technology • High signal -3db passing bandwidth at 1.1GHz • Near-Zero propagation delay • VCC = 1.65V to 3.6V • Ultra-Low Quiescent Power: 0.1µA typical • Ideally suited for low power applications • Industrial operating temperature: -40°C to +85°C • Available in 48 pin TSSOP package Potato Semiconductor’s PO3B16861A is designed for world top performance using submicron CMOS technology to achieve GHz high bandwidth. Pin Configuration NC 1 48 VCC A0 2 47 BE1 A1 3 46 B0 A2 4 45 B1 A3 5 44 B2 A4 6 43 B3 A5 7 42 B4 A6 8 41 B5 A7 9 40 B6 A8 10 39 B7 A9 11 38 B8 GND 12 37 B9 NC 13 36 VCC A10 14 35 BE2 A11 15 34 B10 A12 16 33 B11 A13 17 32 B12 A14 18 31 B13 A15 19 30 B14 A16 20 29 B15 A17 21 28 B16 A18 22 27 B17 A19 23 26 B18 GND 24 25 B19 The PO3B16861A is a 20-Bit, 2-Port Bus Switch. The switch introduces no additional ground bounce noise or propagation delay. Block Diagram A0 SW B0 A9 SW B9 SW B10 BE1 A10 SW SW A19 B19 BE2 A B BE Truth Table Function BEx A19-A0 Disconnent H Hi-Z Connect L B19-B0 1 Copyright © Potato Semiconductor Corporation PO3B16861A 20-Bit, 2-Port Bus Switch 03/16/08 High Bandwidth Potato Chip 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 ........................... –0.5V to +4.6V DC Input Voltage ........................................................ –0.5V to +Vcc DC Output Current................................................................... 120mA Power Dissipation ....................................................................... 0.5W 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. DC Electrical Characteristics, 3.3V Supply (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Description Min. Test Conditions Max. Typ. VIH Input HIGH Voltage Guaranteed Logic HIGH Level VIL Input LOW Voltage Guaranteed Logic LOW Level 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ Y, In ≤ VCC 2.0 Switch On-Resistance V µA ±1 VCC = Min., VIN = 0.0V, RON Units ION = -48 mA or -64mA VCC = Min., VIN = VCC , ION = -15 mA 12 24 12 24 Ω DC Electrical Characteristics, 2.5V Supply (Over Operating Range, TA = –40°C to +85°C, VCC = 2.5V ± 10%) Parameters Description Test Conditions Min. Typ. Max. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 1.8 VCC + 0.3 VIL Inout LOW Voltage Guaranteed Logic LOW Level –0.3 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Current 0 ≤ Y, In ≤ VCC ±1 RON Switch On Resistance VCC = Min., VIN = 0.0V, ION = –48mA 18 VCC = Min., VIN = 2.25V, ION = -15mA 18 Units V µA 26 Ω 26 2 Copyright © Potato Semiconductor Corporation PO3B16861A 20-Bit, 2-Port Bus Switch 03/16/08 High Bandwidth Potato Chip Power Supply Characteristics Symbol Icc Description Quiescent Power Supply Current Test Conditions (1) Min Typ Vcc=Max, Vin=Vcc or GND - 0.1 Max Unit 3 uA Notes: 1. 2. 3. 4. 5. 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, 25°C 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 (TA = 25°C f = 1 MHz) Description Test Conditions Typ. Units CIN COFF Input Capacitance A/B Capacitance, Switch Off VIN = 0V VIN = 0V 3.0 5.0 pF pF CON A/B Capacitance, Switch On VIN = 0V 10.0 pF Dynamic Electrical Characteristics Over the Operating Range (TA = -40º to +85º, VCC = 3.3V ± 10%) Parameter Description Test Condition Typ. XTALK Crosstalk RL = 100Ω -60 OIRR Off-Isolation RL = 100Ω -60 BW -3dB Bandwidth RL = 100Ω 1.1 Units dB GHz Switching Characteristics over 3.3V Operating Range Parameters Description tPLH tPHL Propogation Delay tPZH tPZL Bus Enable Time tPHZ tPLZ Bus Disable Time Conditions See Test Diagram Max. Units 0.3 2.0 ns See Test Diagram 3.0 3 Copyright © Potato Semiconductor Corporation PO3B16861A 20-Bit, 2-Port Bus Switch 03/16/08 High Bandwidth Potato Chip Switching Characteristics over 2.5V Operating Range Parameters Description tPLH tPHL Propogation Delay tPZH tPZL Bus Enable Time tPHZ tPLZ Bus Disable Time Max. Conditions See Test Diagram Units 0.3 2.0 ns See Test Diagram 3.0 Test Circuit for Electrical Characteristics Switch Positions Test Switch tPLZ, tPZL 6.0V tPHZ, tPZH GND Prop Delay Open 6.0V VCC 200-ohm Pulse Generator VOUT VIN D.U.T 10pF CL RT 200-ohm Switching Waveforms 2.5V SEL 1.25V 3.5V 2.5V Input 0V 2.5V 1.5V tPLH Output tPZL tPHL 2.5V tPLZ VDD/2 VOH Output 1.25V VOL VDD/2 Output Voltage Waveforms Propagation Delay Times VOL +0.3V tPHZ tPZH 2.5V VOH VOH –0.3V VOL VOH VOL Voltage Waveforms Enable and Disable Times 4 Copyright © Potato Semiconductor Corporation PO3B16861A 20-Bit, 2-Port Bus Switch 03/16/08 High Bandwidth Potato Chip Packaging Mechanical Drawing: 48 pin TSSOP 48 .236 .244 1 .319 8.1 .488 12.4 .496 12.6 .004 0.09 .008 0.20 .047 1.20 Max .0197 0.50 .018 0.45 .030 0.75 6.0 6.2 .007 .010 0.17 0.27 .002 .006 0.05 0.15 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 5 Copyright © Potato Semiconductor Corporation PO3B16861A 20-Bit, 2-Port Bus Switch 03/16/08 High Bandwidth Potato Chip Ordering Information Ordering Code Package Top-Marking TA PO3B16861ATU 48-pin TSSOP Tube Pb-free & Green PO3B16861AT -40°C to 85°C PO3B16861ATR 48-pin TSSOP Tape and reel Pb-free & Green PO3B16861AT -40°C to 85°C IC Package Information PACKAGE CODE T PACKAGE TYPE TSSOP 48 TAPE WIDTH (mm) 24 TAPE PITCH (mm) 12 PIN 1 LOCATION Top Left Corner TAPE TRAILER LENGTH 26 (12”) QTY PER REEL 1500 TAPE LEADER LENGTH 43 (20”) QTY PER TUBE 39 6 Copyright © Potato Semiconductor Corporation