PI5C3384A 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 10-Bit, 2-Port BusSwitch Product Features Product Description Near-zero propagation delay Direct bus connection when switches are ON Ultra-low quiescent power (0.2µA typical) Ideally suited for notebook applications Packages available: 24-pin 300-mil wide plastic PDIP (P24) 24-pin 150-mil wide plastic QSOP (Q24) 24-pin 300-mil wide plastic SOIC (S24) Pericom Semiconductors PI5C series of logic circuits are produced using the Companys advanced submicron CMOS technology, achieving industry performance. The PI5C3384A is a 10-bit, 2-port bus switches designed with a low ON resistance allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal. Two bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses. Logic Block Diagram Product Pin Configuration A0 B0 A4 B4 A5 B5 A9 B9 BEA B0 A0 A1 B1 B2 A2 A3 B3 B4 A4 GND BEA Pin Name BEA, BEB A0-A9 B0-A9 GND VCC Truth Table(1) Note: 1. H X L Hi-Z = = = = 24 23 22 21 20 19 18 17 16 15 14 13 Vcc B9 A9 A8 B8 B7 A7 A6 B6 B5 A5 BEB Product Pin Description BEB Function Disconnect Connect Connect Connect 1 2 3 4 24-Pin 5 P24 6 Q24 S24 7 8 9 10 11 12 BEA H L H L BEB H H L L B0-B4 Hi-Z A0-A4 Hi-Z A0-A4 B5-B9 Hi-Z Hi-Z A5-A9 A5-A9 Description Bus Enable Inputs (Active LOW) Bus A Bus B Ground Power High Voltage Level Don’t Care Low Voltage Level High Impedance Powered by ICminer.com Electronic-Library Service CopyRight 2003 1 PS8390 06/04/99 PI5C3384A 10-Bit, 2-Port BusSwitch 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 .............................................................................. 120 mA 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 Operating Range, TA = 40°C to +85°C, VCC = 5V ±5%) Test Conditions(1) Parameters Description Min. Typ(2) Max. Units VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 — — V VIL Input LOW Voltage Guaranteed Logic LOW Level –0.5 — 0.8 V IIH Input HIGH Current VCC = Max., VIN = VCC — — ±1 µA IIL Input LOW Current VCC = Max., VIN = GND — — ±1 µA IOZH High-Impedance Output Current 0 ≤ A, B ≤ VCC — — ±1 µA VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V A (B) = 0V, B (A) = VCC 100 — — mA — 150 — mV VCC = Min., VIN = 0.0V, ION = 48mA 2 5 Ω VCC = Min., VIN = 2.4V, ION = 15mA 7 12 Ω (3) IOS Short Circuit Current VH Input Hysteresis at Control Pins RON Switch On Resistance (4) Capacitance (TA = 25°C, f = 1 MHz) Parameters(5) Description Test Conditions Typ Units CIN COFF Input Capacitance A/B Capacitance, Switch Off VIN = 0V VIN = 0V 6 9 pF pF CON A/B Capacitance, Switch On VIN = 0V 22 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 pin 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 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS8390 06/04/99 PI5C3384A 10-Bit, 2-Port BusSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Parame te rs M in. Typ.(2) M ax. Units VCC = Max., VIN = GND or VCC 0.1 3.0 µA Supply Current per Input @ TTL HIGH VCC = Max., VIN = 3.4V(3) 2.5 mA Supply Current per Input per MHz(4) VCC = Max., A and B Pins O pen BE1 or BE2 = GND Control Input Toggling 50% Duty Cycle 0.25 mA/ MHz D e s cription Te s t Conditions ICC Q uiescent Power Supply Current ∆ICC ICCD 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. PI5C3384A Switching Characteristics Over Operating Range PI5C3384A Parameters Description tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay(2,3) Ax to Bx, Bx to Ax Bus Enable Time BEX to Ax or Bx Bus Disable Time BEx to Ax or Bx Conditions(1) Min. Max. CL = 50pF RL = 500Ω — 0.25 1.5 6.5 1.5 5.5 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 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. Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 3 Powered by ICminer.com Electronic-Library Service CopyRight 2003 PS8390 06/04/99