PI5C16226C 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Low Capacitance 12-Bit to 24-Bit Mux/Demux BusSwitch Product Features Product Description • • • • • • • • • • Pericom Semiconductor’s PI5C series of logic circuits are produced using the Company’s advanced submicron CMOS technology. RON is 8Ω Typical Pulldown on B Ports Low Power: 1mW Industrial Operation Temperature: –40ºC to 85ºC Near Zero Propagation Delay Switching Speed: 4.5ns max. Channel on capacitance: 9pF (typ.) VCC Operating Range: +4.5V to 5.5V >100 MHz bandwidth Packages Available: - 40-pin BQSOP (B) The PI5C16226C is a 12-bit to 24-bit mux/demux switch. Industry leading advantages include almost zero propagation delay of 500ps because of the 8Ω channel resistance and low I/O capacitance. A1 port demultiplexes to either port B1 or B2. The switch is bidirectional. Application Memory Switching Product Pin Configuration Logic Block Diagram 1A1 1B1 1A1 2B1 2B 2 3A 1 GND 4B 1 4B 2 5A1 6B 1 6B2 7A 1 1B2 12A1 12B1 VCC 8B 1 8B 2 9A 1 10B1 12B2 10B2 11A1 12B1 12B1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40-Pin B 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 SEL 1B1 1B 2 2A 1 3B 1 3B 2 4A 1 5B 1 5B 2 6A1 7B 1 7B 2 8A1 GND 9B 1 9B 2 10A1 11B1 11B2 12A1 SEL Function Table SEL FUNCTION L nΑl to nΒl H nΑl to nΒ2 Note: n = 112 1 PS8428 09/15/99 PI5C16226C Low Capacitance 12-Bit to 24-Bit Mux/Demux BusSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 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 Range ..................................................... –0.3V to +4.6V DC Input Voltage ............................................................ –0.5V to +4.6V 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 ( Over the Opreating Range, TA= –40ºC to 85ºC, VCC = 5V ±10%) Test Conditions(1) Parameters Description Min. Typ(1) Max. Units VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 – – VIL Input LOW Voltage Guaranteed Logic LOW Level –0.5 – 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC, – – ±1 IIL Input LOW Current VCC = Max., VIN = GND – – ±1 IOZ High Impedance Output Current B = VCC Min., VCC = Min 2.5 – – mA RON Switch On Resistance(4) VCC = Min., VIN = 0.0V, ION = 12mA – 7 12 VCC = Min., VIN = 2.4V, ION = 8mA – 12 23 Ω V µA Capacitance (TA = 25°C, f = 1 MHz) Parameters(5) Description Test Conditions CIN CON Input Capacitance A/B Capacitance, Switch On VIN = 0V VIN = 0V Typ. Max. Units 3 9 — 11 pF pF Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, TA = 25°C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. Measured by the voltage drop between A and B pins at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A & B) pins. 5. This parameter is determined by device characterization but is not production tested. 2 PS8428 09/15/99 PI5C16226C Low Capacitance 12-Bit to 24-Bit Mux/Demux BusSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Test Conditions(1) Parameters Description Min. Typ(2) Max. Units ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC — — 200 µA ∆ICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.4V(3) other pin=VCC or GND — — 2.5 mA ICCD Supply Current per Input per MHz(4) VCC = Max., A and B Pins Open Control Input Toggling 50% Duty Cycle — — 0.25 mA/ MHz Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 5.0V, +25°C ambient. 3. Per TTL driven input (VIN = 3.4V, control inputs only); A and B pins do not contribute to ICC. 4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. Switching Characteristics over Operating Range Parameters t PLH t PHL t PZH t PZL t PHZ t PLZ Description Propagation Delay(2,3) A to B Bus Enable Time SEL TO A,B Bus Disable Time SEL to A,B Conditions(1) Min. PI516226C Com. Typ. CL = 25pF RL = 500Ω 0.5 1.3 3.0 4.5 1.3 3.0 4.5 Max. Units ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. 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 25pF 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 Width Te mpe rature PI5C16226CB 40- BQ SO P (B40) 150- mil 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 PS8428 09/15/99