PI3B16232 3.3V, Synchronous 16-Bit to 32-Bit FET Mux/Demux BusSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI3B16232 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, Synchronous 16-Bit to 32-Bit FET Mux/Demux BusSwitch Product Features Product Description • Near-Zero propagation delay. Pericom Semiconductor’s PI3B series of logic circuits are produced using the company's advanced 0.35micron CMOS technology. • 5Ω Switches Connect Between Two Ports • Packages Available : - 56-pin 240mil Wide Thin Plastic TSSOP(A) - 56-pin 300mil Wide Plastic SSOP(V) The PI3B16232 is a 3.3 volt, 16-bit to 32-bit synchronous switch. Two select inputs (S0 and S1) control the data flow. A clock (CLK) and a clock enable (CLKEN) synchronize the device operation. When CLKEN is high, the bus switch remains in the last clocked function. Product Pin Configuration Logic Block Diagram 56-Pin A, V Truth Table S1 S0 CLK CLKEN Function X X X H Last State L L ↑ L Disconnect L H ↑ L A = B1 and A = B2 H L ↑ L A = B1 H H ↑ L A = B2 1 PS8178B 11/09/98 PI3B16232 3.3V, Synchronous 16-Bit to 32-Bit FET 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 ......................................................–0.5V to +4.6V DC Input Voltage .............................................................–0.5V to +4.6V 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 = 3.0V to 3.6V) 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 IIL Input HIGH Current Input LOW Current VCC = Max., VIN = VCC VCC = MAX. , VIN = GND — — — ±1 ±1 µA µA IOZH High Impedance Output Current 0 ≤ A, B ≤ VCC — — ±1 µA VIK Clamp Diode Voltage VCC = Min.,VIN = –18mA — -0.7 -1.2 V VCC = Min., IIN = 0.0V, ION = 48mA or 64mA VCC = Min.,VIN = 2.4 V, ION = 15mA — — 5 10 8 15 Ω Ω Ron (3) Switch on Resistance Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) CIN CON Description Test Conditions Typ. Units Input Capacitance A/B Capacitance, Switch On VIN = 0V VIN = 0V 3.0 25.0 pF pF Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 3.3V, TA = 25°C ambient and maximum loading. 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. 4. This parameter is determined by device characterization but is not production tested. 2 PS8178B 11/09/98 PI3B16232 3.3V, Synchronous 16-Bit to 32-Bit FET Mux/Demux BusSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parameters Test Conditions(1) Description Min. Typ(2) Max. Units ICC Quiescent Power Supply Current VCC = MAX. VIN = GND or VCC — — 10 µA ∆ICC Supply Current per Input @ TTL HIGH VCC = MAX. VIN = 3.0 V(3) — — 750 µA ICCD Supply Current per Input per MHz(4) VCC = Max., A and B Pins Open BE = GND Control Input Toggling 50% Duty Cycling — — 0.25 mA/ MHz Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for applicable device. 2. Typical values are at Vcc = 3.3V, +25°C ambient. 3. Per TTL driven input (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 Vcc = 3.0 to 3.6V Parame te r fCLK D e s cription Te s t Conditions (1) Clock Frequency M in. M ax. Units 0 150 MHz tW Pulse Duration CLK high or low 3.3 ts Setup Time S0, S1 before CLK↑ 1.9 CLK EN before CLK↑ 1.9 th Hold Time ten Enable Time CLK to B1, B2 1 5 tdis Disable Time CLK to B1, B2 1 6 tpd1(2,3) Propagation Delay A to B tpd2 Propagation Delay CLK to A S0, S1 after CLK↑ 1 CLK EN after CLK↑ 1.8 ns 0.25 1 4.5 Notes: 1. See Test Circuits and Waveforms. 2. This parameter is guaranteed by design but not tested. 3. The bus switch contributes no propagational delay other than the RC delay of ON resistance of the switch and the load capacitance. 3 PS8178B 11/09/98