PI3B3383 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V, 5-Bit, 4-Port Bus Exchange NanoSwitchTM Product Features Product Description • • • • Pericom Semiconductor’s PI3B series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading performance. The PI3B3383 is a 5-bit, 4-port bus switch 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. Near-zero propagation delay 5Ω switches connect inputs to outputs Direct bus connection when switches are ON Ultra-low quiescent power (0.1µA typical) – Ideally suited for notebook applications • Packages available: – 24-pin 173-mil wide plastic TSSOP (L) – 24-pin 150-mil wide plastic QSOP (Q) Logic Block Diagram A0 C0 Product Pin Configuration B0 D0 A4 C4 B4 D4 BE C0 A0 B0 D0 C1 A1 B1 D1 C2 A2 GND 24 1 23 2 22 3 21 4 24-Pin 20 5 L, Q, S 19 6 18 7 17 8 16 9 15 10 14 11 13 12 Vcc D4 B4 A4 C4 D3 B3 A3 C3 D2 B2 BX Product Pin Description Pin Name BE BX Ax Bx Cx Dx GND VCC BX BE Truth Table(1) Function Disconnect Connect Exchange Note: 1. H X L Hi-Z = = = = BE H L L BX X L H A0-A4 Hi-Z C0-C4 D0-D4 B0-B4 Hi-Z D0-D4 C0-C4 Description Bus Enable Input (Active LOW) Bus Exchange Input Bus A Bus B Bus C Bus D Ground Power High Voltage Level Don’t Care Low Voltage Level High Impedance 1 PS8580 10/18/01 PI3B3383 3.3V, 5-Bit, 4-Port Bus Exchange NanoSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 TM 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 ...................................... –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 = 3.3V ±10%) Parame te rs Te s t Conditions (1) De s cription M in. Typ(2) M ax. 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 IOZH High Impedance Output Current 0< AB, CD < VCC — — ±1 VIK Clamp Diode Voltage VCC = MIN., IIN = –18mA — –0.7 –1.2 V RON Switch On Resistance(3) VCC = MIN., VIN = 0.0V, ION = 48mA VCC = MIN., VIN = 2.4V, ION = 15mA — — 5 10 7 15 Ω V µA Capacitance (TA = 25°C, f = 1 MHz) Parame te rs (4) De s cription CIN Input Capacitance C O FF AB/CD Capacitance, Switch Off CON AB/CD Capacitance, Switch On Te s t Conditions Typ. Units 3.0 VIN = 0V 12.0 pF 24.0 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 = 3.3V, TA = 25°C ambient and maximum loading. 3. 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. 4. This parameter is determined by device characterization but is not production tested. 2 PS8580 10/18/01 PI3B3383 3.3V, 5-Bit, 4-Port Bus Exchange NanoSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 TM 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parame te rs De s cription Te s t Conditions (1) M in. Typ(2) M ax. ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 10 ∆ΙCC Supply Current per Input@ LVTTL HIGH VCC = Max. VIN = 3.0V(3) 750 Units µA Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.0V, +25°C ambient. 3. Per LVTTL driven input (VIN = 2.4V, control inputs only); A, B, C, and D pins do not contribute to ICC. PI3B3383 Switching Characteristics over Operating Range PI3B3383 Com Parame te rs Conditions (1) De s cription tPLH tPHL Propagation Delay(2,3) Ax to Cx, Bx to Dx tPZH tPZL Bus Enable Time BE to Cx or Dx tPHZ tPLZ Bus Disable Time BE to Cx or Dx tBX Bus Exchange Time, BX to Cx or Dx C l = 50 pF Rl = 500Ω M in. Typ. M ax. — 0.25 — 1 — 4.5 1 — 4.5 1 — 4.8 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. 3 PS8580 10/18/01 PI3B3383 3.3V, 5-Bit, 4-Port Bus Exchange NanoSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 TM 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Parameter Measurements S1 500Ω From Output Under Test CL = 50pF (See note 1) 6V Open GND 500Ω Output Control (Low Level Enabling) LOAD CIRCUIT 3V Input Output Waveform 1 S1 at 6V (see Note 2) 1.5V 1.5V 0V tPLH tPHL Output Waveform 2 S1 at Open (see Note 2) VOH 1.5V Output 1.5V VOL Te s t S1 tPD Open tPLZ/tPZL 6V tPHZ/tPZH GND 3V 1.5V 1.5V 0V tPZL tPLZ 3V 1.5V VOL +0.3V tPZH VOL tPHZ VOH -0.3V VOH 1.5V 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES Notes: 1. CL includes probe and jig capacitance. 2. Waveform 1 is for an output with internal conditions such that the output is LOW except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is HIGH except when disabled by the output control. 3. All input pulses are supplied by generators having the following characteristics: PRR<10MHz, ZO = 50Ω, tr ≤2.5ns, tf ≤2.5ns. 4. The outputs are measured one at a time with one transition per measurement. 5. tPLZ and tPHZ are the same as tdis. 6. tPZL and tPZH are the same as ten. 7. tPLH and tPHL are the same as tpd. Ordering Information Part Pin - Package PI3B3383L 24 TSSOP (L) PI3B3383Q 24 QSOP (Q) Te mpe rature –40°C to +85°C Applications Logic Inputs The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a 3.0V supply, the control or select pins may be driven low to 0V and high to 3.6V. Driving the control or select pins Rail-toRail minimizes power consumption. Power-Supply Sequencing Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC before applying signals to the input/ output or control pins. 4 PS8580 10/18/01 PI3B3383 3.3V, 5-Bit, 4-Port Bus Exchange NanoSwitch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 TM 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 24-Pin TSSOP (L) Package 24 .169 .177 4.3 4.5 .004 .008 1 .303 .311 7.7 7.9 0.45 .018 0.75 .030 .047 1.20 Max .252 BSC 6.4 SEATING PLANE .002 0.05 .006 0.15 .007 .012 0.19 0.30 .0256 BSC 0.65 0.09 0.20 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS 24-Pin QSOP (Q) Package 24 .008 0.20 MIN. .150 .157 .008 .013 0.20 0.33 3.81 3.99 Guage Plane .010 0.254 .016 .035 0.41 0.89 Detail A 1 .337 .344 .041 1.04 REF 8.56 8.74 .033 0.84 0˚-6˚ .053 .069 .015 x 45˚ 0.38 1.35 1.75 Detail A .007 .010 SEATING PLANE .025 typical 0.635 .008 0.203 .012 0.305 .004 0.101 .010 0.254 .016 .050 0.178 0.254 0.406 1.27 .228 .244 5.79 6.20 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 5 PS8580 10/18/01