PI5C34X383/PI5C34X2383 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 32-Bit BusSwitch/Exchange Product Features: Product Description: • Near-zero propagation delay • Low noise, 25Ω version (PI5C32383) • 5Ω switches connect inputs to outputs (PI5C3383) • Direct bus connection when switches are ON • Ultra-low quiescent power (0.2 µA typical) – Ideally suited for notebook applications • Packages available: – 80-pin 150-mil wide plastic QSOP (B) Logic Block Diagram A0 C0 A4 C4 B0 D0 B4 D4 Pericom Semiconductor’s PI5C series of logic circuits are produced in the Company’s advanced 0.8 micron CMOS technology, achieving industry leading performance. The PI5C34X383 and PI5C34X2383 are 32-bit bus switches with exchange 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, and the Bus Exchange (BX) input signal offers nibble swapping of the AB and CD pairs of signals. This exchange configuration allows byte swapping of buses in systems. It can also be used as a quad 2-to-1 multiplexer and to create low delay barrel shifters, etc. The PI5C34X2383 is designed with an internal 25Ω resistor reducing noise reflection in high-speed applications. Applications: 16-wide 2:1 MUX, Byte Swapping, and Hot Insertion. A3 C3 A7 C7 B3 D3 B7 D7 Truth Table(1) Function Disconnect Connect Exchange BEN H L L BXn X L H A0-A15 Hi-Z C0-C15 D0-D15 B0-B15 Hi-Z D0-D15 C0-C15 Note: 1. H = High Voltage Level, X = Don’t Care, L = Low Voltage Level, Hi-Z = High Impedance BX1 BE1 BX2 BE2 A8 C8 A12 C12 B8 D8 B12 D12 A11 C11 A15 C15 B11 D11 B15 D15 BX1 BE1 BX2 BE2 203 PS8120 08/6/97 PPI5C34X383/PI5C34X2383 32-BIT BusSwitch/EXCHANGE 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Configuration BE1 C0 A0 B0 D0 C1 A1 B1 D1 GND BE2 C4 A4 B4 D4 C5 A5 B5 D5 GND BE3 C8 A8 B8 D8 C9 A9 B9 D9 GND BE4 C12 A12 B12 D12 C13 A13 B13 D13 GND Product Pin Description 1 2 3 4 5 6 80 79 78 7 8 9 74 73 10 11 12 13 14 71 70 69 15 16 17 66 65 64 18 19 20 80-Pin 62 B80 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 77 76 75 72 68 67 63 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 Vcc D3 B3 A3 C3 D2 B2 A2 C2 BX1 Vcc D7 B7 A7 C7 D6 B6 Pin Name Description BEn BXn Ax Bx Cx Dx GND VCC Bus Enable Input (Active LOW) Bus Exchange Input Bus A Bus B Bus C Bus D Ground Power A6 C6 BX2 Vcc D11 B11 A11 C11 D10 B10 A10 C10 BX3 Vcc D15 B15 A15 C15 D14 B14 A14 C14 BX4 204 PS8120 08/6/97 PI5C34X383/PI5C34X2383 32-BIT BusSwitch/EXCHANGE 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings Note: (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 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 - AB, CD - VCC — — ±1 µA VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA — - 0.7 - 1.2 V IOS Short Circuit Current(3) AB (CD) = 0V, CD (AB) = VCC 100 — — mA VH Input Hysteresis at Control Pins — 150 — mV RON Switch On Resistance (4) VCC = Min., VIN = 0.0V, ION = 48 mA PI5C3383 PI5C32383 — 18 5 28 7 40 Ω VCC = Min., VIN = 2.4V, ION = 15 mA PI5C3383 PI5C32383 — 18 10 35 15 48 Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(5) Description Test Conditions Typ Max. Units CIN COFF Input Capacitance AB/CD Capacitance, Switch Off VIN = 0V VIN = 0V — — 6 6 pF pF CON AB/CD Capacitance, Switch On 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 AB and CD pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A or B, C or D) pins. 5. This parameter is determined by device characterization but is not production tested. 205 PS8120 08/6/97 PPI5C34X383/PI5C34X2383 32-BIT BusSwitch/EXCHANGE 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 — 0.1 3.0 µA ∆ICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.4V(3) — — 2.5 mA ICCD Supply Current per Input per MHz(4) VCC = Max., AB and CD Pins Open BE = GND Control Input Toggling 50% Duty Cycle — — 0.25 mA/ MHz Notes: 1. For conditions shown as Max. or Min., 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, B, C, and D 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, B, C, and D inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. PI5C34X383 Switching Characteristics over Operating Range Parameters Description tPLH tPHL tPZH tPZL tPHZ tPLZ tBX (2,3) Propagation Delay Ax to Cx, Bx to Dx Bus Enable Time BE to Cx or Dx Bus Disable Time BE to Cx or Dx Bus Exchange Time BX to Cx or Dx PI5C34X383 Com Typ Max Conditions(1) Min CL = 50 pF RL = 500Ω — 0.25 — ns 1.5 — 6.5 ns 1.5 — 5.5 ns 1.5 — 6.5 ns Unit 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. 206 PS8120 08/6/97 PI5C34X383/PI5C34X2383 32-BIT BusSwitch/EXCHANGE 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI5C34X2383 Switching Characteristics over Operating Range Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tBX Description Propagation Delay(2,3) Ax to Cx, Bx to Dx Bus Enable Time BE to Cx or Dx Bus Disable Time BE to Cx or Dx Bus Exchange Time BX to Cx or Dx PI5C34X2383 Com Typ Max Conditions(1) Min CL = 50 pF RL = 500Ω — 1.25 — ns 1.5 — 6.5 ns 1.5 — 5.5 ns 1.5 — 6.5 ns Unit 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 207 PS8120 08/6/97