PI5C3401 6-Bit, 3-Port Bus Exchange Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI5C3401 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 6-Bit, 3-Port Bus Exchange Switch Product Features: Zero propagation delay 5ohm switches connect inputs to outputs 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 DIP (P) 24-pin 150 mil wide plastic QSOP (Q) 24-pin 300 mil wide plastic SOIC (S) Product Description: Pericom Semiconductors PI5C series of logic circuits are pro-duced in the Companys advanced 0.8 micron CMOS technology, achieving industry leading performance. The PI5C3401 is a 6-bit, 3-port bus exchange switch designed with a low ON resistance (5ohm) 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 OFF by S0 = H and S1 = H. The A bus can be connected to B bus by S0 = L and S1 = L. The B bus can be connected to C bus by S0 = H and S1 = L. The C bus can be connected to A bus by S0 = L and S1 = H. Logic Block Diagram Product Pin Configuration B0 A0 24-PIN P Q S C0 B5 A5 C5 Product Pin Description S0 S1 DECODER Truth Table(1) Function Disconnect Connect A-B Connect B-C Connect C-A S0 H L H L S1 H L L H A05 Hi-Z B05 Hi-Z C05 B05 Hi-Z A05 C05 Hi-Z C05 Hi-Z Hi-Z B05 A05 Pin Name S0, S1 A05 B05 C05 NC GND Description Bus Direction Bus A Bus B Bus C No Connect Ground VCC Power Note: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance 1 PS7020A 03/13/96 PI5C3401 6-Bit, 3-Port Bus Exchange Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ........................................................ 65°C to +150°C Note: Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ........................ 40°C to +85°C RATINGS may cause permanent damage to the device. Supply Voltage to Ground Potential (Inputs & Vcc Only) . 0.5V to +7.0V This is a stress rating only and functional operation of the device at these or any other conditions above those Supply Voltage to Ground Potential (Outputs & D/O Only)0.5V to +7.0V indicated in the operational sections of this specification DC Input Voltage ................................................................ 0.5V to +7.0V is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Output Current .......................................................................... 120 mA Power Dissipation ................................................................................ 0.5W DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 5V ±5%) Parameters Description Test Conditions(1) Min. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level 0.5 IIH Input HIGH Current IIL Typ(2) Max. Units V 0.8 V VCC = Max., VIN = VCC ±1 µA 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 = 18 mA 1.2 V IOS Short Circuit Current A (B) = 0V, B (A) = VCC VH Input Hysteresis at Control Pins RON Switch On Resistance (3) (4) 0.7 100 mA 150 VCC = Min., VIN = 0.0V, VCC = Min., VIN = 2.4V, ION = 48 mA ION = 15 mA mV 5 10 7 15 ohm Capacitance (TA = 25°C, f = 1 MHz) Parameters(5) Description Test Conditions CIN COFF Input Capacitance A/B Capacitance, Switch Off CON A/B Capacitance, Switch On Typ Max. Units VIN = 0V VIN = 0V 6 6 pF pF VIN = 0V 8 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 PS7020A 03/13/96 PI5C3401 6-Bit, 3-Port Bus Exchange Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Test Conditions(1) Parameters Description Min. ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC ∆ICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.4V(3) ICCD Supply Current per Input per MHz(4) VCC = Max., A and B Pins Open BE = GND Control Input Toggling 50% Duty Cycle Typ(2) Max. Units 0.1 3.0 µA 2.5 mA 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. Switching Characteristics over Operating Range Parameters Description t PLH t PHL tS Propagation Delay(2,3) Ax to Bx, Bx to Cx or Cx to Ax Bus Direction Time SX to Ax or Bx or Cx Conditions(1) PI5C3401 Com. Min. Max. CL = 50 pF RL = 500ohm 1.5 Unit 0.25 ns 6.5 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 0.25 ns for 50 pF 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 PS7020A 03/13/96