PI5C32203 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 32-Bit Bus Switch with GTL Termination for Slotted CPU Applications Features Product Description • • • • • • • • Pericoms PI5C32203 is a 32-bit bus switch. Industry leading advantages include very low power, and low I/O capacitance. When the bus switch is enabled (ENx = 0), it is terminated internally through a series resistor to an external VBIAS. The ONresistance of the switch along with the series resistor provides a 150ohm nominal termination to VBIAS. RON is 150ohm typical connected to 1.5V VBIAS Low Power......50µW Industrial Operation Temperature: −40ºC to +85ºC Switching Speed......7.5ns max. Channel On Capacitance: 8pF VCC Operating Range: +5V ± 5% ESD > 2000V......Human Body Model Packages available: 56-pin TSSOP ENX Switch L On H O ff Applications Provides GTL termination for busses for five to six processor Pentium II system with an empty Slot II. Notes: When Enabled: Ports Ax connect to VBIAS..A Ports Ay connect to VBIAS..B Where: X = 0-3, 8-11, 16-19, 24-27 Y = 4-7, 12-15, 20-23, 28-31 Logic Block Diagram Product Pin Configuration 56-Pin A 1 PS8350A 02/02/99 PI5C32203 32-Bit Bus Switch with GTL Termination for Slotted CPU Applications 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested). Storage Temperature −65ºC to +150ºC Ambient Temperature with Power Applied −40ºC to +85ºC Supply Voltage to Ground Potentials (Inputs & VCC Only) −0.5V to +7.0V DC Input Voltage −0.5V to +7.0V 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 conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. DC Electrical Characteristics (VCC = 5V ± 5%, TA = 0ºC to +85ºC) Parame te r D e s cription Te s t Conditions M in. Typ.(1 ) M ax. VIH TTL Input HIGH Voltage 2.0 VIL TTL Input LO W Voltage 0.5 0.8 IIH TTL Input HIGH Current 1 IIL TTL Input LO W Current 1 125 150 175 4 8 10 Enable VC C = Min., VIN = 0.0V, VBIAS = 1.5V RO N Switch O n Resistance CIN Input Capacitance CO N Input Capacitance, Switch O n IC C Power Supply Q uiescent VIN = 0V Units V µA ohm pF µA Note: 1. Typical values are shown at VCC = 3.3V, +25ºC ambient and maximum loading. AC Electrical Characteristics (VCC = 5V ± 5%, TA = -40ºC to +85ºC) Parame te r D e s cription Te s t Conditions M in. M ax. Units tP E Bus Enable tP D Bus Disable CL = 20pF, RL = 500ohm 1 5 ns Ordering Information Part Pin-Package Width PI5C32203 56- TSSO P (A56) 240- mil Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, California 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 2 PS8350A 02/02/99