PI5C16211 24-Bit Bus Switch Features Description • • • • Near-Zero propagation delay 5Ω switch connects inputs to outputs Direct bus connection when switches are ON Ultra-low quiescent power (0.2µA typical) – Ideally suited for notebook applications • Industrial operating temperature: –40°C to +85°C • Packaging (Pb-free & Green available): – 56-pin 240-mil wide thin plastic TSSOP Pericom Semiconductor’s PI5C16211 is a 24-bit bus switch designed with a low On-Resistance allowing inputs to be connected directly to outputs. This device operates as a 24-bit or a 12-bit bus switch, which provides high speed bus switching. Pin Configuration NC 56 55 3 4 5 54 53 52 6 7 8 51 50 49 9 10 48 47 11 12 13 46 45 44 1 B8 14 15 16 43 42 41 1B11 17 18 40 39 2 B2 19 20 21 38 37 36 GND 35 2A8 22 23 24 2A9 25 32 2A10 26 31 2A11 27 28 30 29 1A2 Block Diagram 1A3 1A1 1A4 1B1 1A5 1A6 1A12 GND 1B12 1A7 1A8 1A9 1A10 1A11 1OE 1A12 2A1 2A1 2B1 2A2 VCC 2B12 2A12 2A3 GND 2A4 2A5 2A6 2A7 2OE Truth Table(1) 1OE L L H H 2OE L H L H 1A, 1B, I/Os 1A = 1B 1A = 1B Z Z 2A, 2B, I/Os 2A = 2B Z 2A = 2B Z 2A12 34 33 2OE 1 B1 1 B2 1 B3 1 B4 1 B5 GND 1 B6 1 B7 1 B9 1B10 1B12 2 B1 2 B3 2 B4 2 B5 2 B6 2 B7 2 B8 2 B9 2B10 2B11 2B12 Pin Description Pin Name xOE xAx xBx Notes: 1. H = High Voltage Level, L = Low Voltage Level, Z = High Impedance 09-0003 1OE 1 2 1A1 1 I/O I I/O I/O Description Output Enables Bus A Bus B PS7050H 10/27/09 PI5C16211 24-Bit Bus Switch 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 +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only)......... –0.5V to +7.0V DC Input Voltage........................................................................... –0.5V to +7.0V DC Output Current.......................................................................................120mA Power Dissipation...........................................................................................1.4W 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 (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±10%) Parameters Vik Ii Icc Description Clamp Diode Voltage Input LOW Current Test Conditions Min. Typ(1) Max. Units Vcc = 4.5V, Ii = –18mA 1.2 V Vcc = 5.5V, Vi = Vcc or GND 10 Vcc = 0V, Vi = 5.5V ±1 Quiescent Power Supply Current Vcc = 5.5V, Vi = Vcc or GND 3.0 ΔIcc Supply Current per Control Input @ TTL High 2.5 Ci(2) Vcc = 5.5V, One input at 3.4V, other inputs at Vcc or GND Control Input Capacitance Vi = 3V or 0 4.5 A/B Switch OFF Capacitance Vo = 3V or 0, OE = Vcc 5.5 Cio (off)(2) Ron Switch On Resistance(3) Vcc = 4.0V, Vi = 2.4V, Ii = 15 mA 14 20 Vcc = 4.5V, Vi = 0V, Ii = 64 mA 5 7 Vcc = 4.5V, Vi = 0V, Ii = 30 mA 5 7 Vcc = 4.5V, i = 2.4V, Ii = 15 mA 8 12 µA mA pF Ω Notes: 1. Typical values are at Vcc = 5.0V, Ta = 25°C ambient and maximum loading. 2. This parameter is determined by device characterization but is not production tested. 3. 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. 09-0003 2 PS7050H 10/27/09 PI5C16211 24-Bit Bus Switch Power Supply Characteristics Parameters Description Min. VCC Supply Voltage 4.0 VIH High Level Input Voltage 2.0 VIL Low Level Input voltage TA Operating Free-Air Tempertaure Typ.(1) Max. Units 5.5 V 0.8 –40 85 °C Note: 1. Typical values are at Vcc = 5.0V, +25°C ambient. Switching Characteristics over Operating Range Parameters From (Input) To (Output) tPD(1) A or B B or A tEN OE A or B tDIS OE A or B VCC = 5V ±0.5V Test Conditions Min. CL = 50pF RL = 500Ω Max. VCC = 4V Min. Max. 0.25 0.25 1.5 9.3 10.1 1.5 8.5 7.1 Units ns Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 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. 09-0003 3 PS7050H 10/27/09 PI5C16211 24-Bit Bus Switch 1 DATE: 09/11/06 Notes: 1. Controlling dimensions in millimeters. 2. Ref: JEDEC MO-153F/EE 3. Package Outline Exclusive of Mold Flash and Metal Burr DESCRIPTION: 56-pin, 240-mil wide TSSOP PACKAGE CODE: A56 DOCUMENT CONTROL #: PD-1502 REVISION: M 06-0736 Note: • For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php Ordering Information Ordering Code PI5C16211AE Package Type A Package Description Pb-free & Green, 56-pin 240-mil wide 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 09-0003 4 PS7050H 10/27/09