PI5C16211 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 24-Bit Bus Switch Product Features Product Description • • • • Near-zero propagation delay 5Ω switches connect inputs to outputs Direct bus connection when switches are ON Ultra-low quiescent power (0.2 µA typical) – Ideally suited for notebook applications • Industrial operating temperature: –40°C to +85°C • Packages available: – 56-pin 173-mil wide plastic TVSOP (K) – 56-pin 240-mil wide thin plastic TSSOP (A) – 56-pin 300-mil wide plastic SSOP (V) Pericom Semiconductor’s PI5C series of logic circuits are produced using the Company’s advanced 0.6 micron CMOS technology. Logic Block Diagram Product Pin Configuration The 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. NC 1A1 1A1 1B1 1A2 1A3 1A12 1B12 1A4 1A5 1A6 GND 1A7 1A8 1OE 1A9 2A1 2B1 1A10 1A11 2A12 1A12 2B12 2A1 2A2 VCC 2A3 GND 2OE 2A4 2A5 2A6 2A7 2A8 Truth Table 1OE L L H H Note: 2A9 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 2A10 2A11 2A12 1 2 56 55 1OE1 3 4 5 54 53 52 1B1 6 7 8 51 50 49 1B4 9 10 48 47 1B6 11 46 12 45 56-Pin 13 44 1B8 14 15 16 43 42 1B11 41 2B1 17 18 40 39 2B2 19 20 21 38 37 36 GND 22 23 24 35 34 33 2B6 25 26 32 31 2B9 27 28 30 29 2B11 A, K,V 2OE 1B2 1B3 1B5 GND 1B7 1B9 1B10 1B12 2B3 2B4 2B5 2B7 2B8 2B10 2B12 Product Pin Description Pin Name S0-S2 xAx xBx 1. H = High Voltage Level L = Low Voltage Level Z = High Impedance 1 I/O I I/O I/O Description Select Inputs Bus A Bus B PS7050B 12/09/99 PI5C16211 24-Bit Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 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 Description Test Conditions Min. Typ(1) Max. VIK Clamp Diode Voltage VCC = 4.5V, II = –18mA — — –1.2 II Input LOW Current VCC = 5.5V, VI = VCC or GND — — 10 VCC = 0V, VI = 5.5V — — ±1 ICC Quiescent Power Supply Current VCC = 5.5V, VI = VCC or GND — — 3.0 ∆I CC Supply Current per Control Input @ TTL High VCC = 5.5V, One input at 3.4V, other inputs at VCC or GND — — 2.5 CI(2) Control Input Capacitance VI = 3V or 0 — 4.5 — A/B Switch OFF Capacitance Switch On Resistance(3) VO = 3V or 0, OE = VCC — 5.5 — 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, VI = 2.4V, II = 15 mA — 8 12 (OFF)(2) CIO RON Units V 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. 2 PS7050B 12/09/99 PI5C16211 24-Bit Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parame te rs D e s cription M in. Typ(1) M ax. Units VCC Supply Voltage 4.0 5.5 V VIH High Level Input Voltage 2.0 V VIL Low Level Input Voltage 0.8 V TA O perating Free- Air temp - 40 85 °C Note: 1. Typical values are at VCC = 5.0V, +25°C ambient. Switching Characteristics over Operating Range From (INPUT) To (OUTPUT) Te s t Conditions A or B B or A tEN OE A or B CL = 50pF RL = 500Ω tDIS OE A or B Parame te rs (1) tPD VCC = 5 V ± 0.5 V VCC = 4 V M in. M ax. M in. M ax. 0.25 0.25 3.9 9.3 10.1 3.3 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. Ordering Information Part Pin-Package Te mpe rature PI5C16211A 56 - TSSO P (A) 40°C to +85°C PI5C16211K 56 - TSSO P (K ) 40°C to +85°C PI5C16211V 56 - TSSO P (V) 40°C to +85°C Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 3 PS7050B 12/09/99