PI3B16292 Ω) PI3B162292 (25Ω 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3Volt, 24-Bit Mux/Demux BusSwitch Features Description • • • • • Pericom Semiconductor’s PI3B series of logic circuits are produced using the Company’s advanced 0.35 micron CMOS technology. • • • • Near-zero propagation delay 5Ω switches connect inputs to outputs Fast Switching Speed - 5ns (max.)(16292) Internal 500Ω pull-down on A2 ports Ultra-low quiescent power (0.2µA typical) – Ideally suited for notebook applications Vcc Operating Range : 3.0V to 3.6V Industrial operating temperature: –40°C to +85°C Make-before-break switching Packages available: – 56-pin 240-mil wide thin plastic TSSOP (A) – 56-pin 300-mil wide plastic SSOP (V) The PI3B16292 and PI3B162292 are 3.3 volt, 12-bit to 24-bit Mux/Demux Bus switches designed with a low ON resistance allowing inputs to be connected directly to outputs. The PI3B162292 device has a built-in 25-ohm series resistor to reduce noise resulting from reflections, thus eliminating the need for an external terminating resistor. A2 port is not externally connected and, as a result, has an internal 500-ohm pulldown resistor to ground. Pin Configuration Applications S0 • Memory switching 1A1 NC1 2A 1 NC1 3A1 NC1 Logic Block Diagram GND 4A1 NC1 5A1 NC1 6A1 NC1 Ω 7A1 NC1 VCC 8A1 GND NC1 9A1 NC1 Truth Table Function A1 to B1, A2 to B2 A1 to B2, A2 to B1 S0 L H A1 B1 B2 10A1 NC1 11A1 NC1 A2 B2 B1 12A1 NC1 Note: 1. H = High Voltage Level L = Low Voltage Level Z = High Impedance 1 2 3 4 5 6 7 8 9 56 55 54 53 52 51 50 49 48 10 47 11 46 12 56-PIN 45 13 A, V 44 14 43 15 42 16 41 17 40 18 39 19 38 20 21 22 23 24 25 26 27 28 37 36 35 34 33 32 31 30 29 NC NC 1B1 1B 2 2B1 2B 2 3B1 GND 3B 2 4B1 4B 2 5B1 5B 2 6B1 6B 2 7B1 7B 2 8B1 GND 8B2 9B1 9B 2 10B1 10B2 11B1 11B2 12B1 12B2 Product Pin Description Pin Name S0 xA1 xBx NC NC1 1 I/O I I/O I/O Description Select Inputs Bus A Bus B Leave it unconnected Leave it unconnected PS8177A 12/14/98 PI3B16292/162292 3.3V, 24-Bit Mux/Demux 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Ω) BusSwitch (25Ω 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 ............. –0°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 ................................................................ 0.5Watt 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 II Input Current VCC = Max., VIN = VCC or GND VCC = 0, VIN = VCC — — — — ±1 10 µA µA VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V 16292 — 5 8 Ω 162292 20 28 40 16292 — 10 15 162292 20 35 48 RON Switch On Resistance (3) VCC = Min., VIN = 0.0V, ION = 64mA VCC = Min., VIN = 2.4V, ION = 15mA Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) CIN CON Description Test Conditions Max. Units Input Capacitance A/B Capacitance, Switch On VIN = 0V VIN = 0V 3.0 30.0 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 PS8177A 12/14/98 PI3B16292/162292 3.3V, 24-Bit Mux/Demux Ω) BusSwitch (25Ω 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(3) Supply Current for S0 @ TTL HIGH VCC = MAX. VIN = 3.0 V(4) Other Inputs at VCC OR GND — — 750 µA ICCD Supply Current for S0 per MHz(5) Toggling 50% Duty Cycle VCC = Max., A and B Pins Open — — 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. This is the increase in supply current for S0 at the specified TTL voltage level rather than VCC or GND. 4. Per driven input ( S0 only); A and B pins do not contribute to Icc. 5. 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. PI3B16292 Switching Characteristics over Operating Range Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tm Conditions(1) Description Propagation Delay(2,3) xA1 to xBx, xBx to xA1 Bus Enable time S to xA1 or xBx Bus Disable time S to xA1 or xBx Make-before-break time(2) CL = 50 pF RL = 500Ω R = 500Ω to 6V(4) Min. Max. — 0.25 1 4.5 1 5.0 0 2 Units ns PI3B162292 Switching Characteristics over Operating Range Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tm Description Conditions (2,3) (1) Propagation Delay xA1 to xBx, xBx to xA1 Bus Enable time CL = 50 pF S to xA1 or xBx RL = 500Ω Bus Disable time R = 500Ω to 4.6V(4) S to xA1 or xBx Make-before-break time(2) Min. Max. — 1.25 1 5 1 5.5 0 2 Units ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested. 3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and 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 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. 4. Applies to tPLZ and tPZL. 3 PS8177A 12/14/98 PI3B16292/162292 3.3V, 24-Bit Mux/Demux 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Ω) BusSwitch (25Ω 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 56-Pin SSOP (300 MIL WIDE) - Package Code: V56 56 .291 .299 7.39 7.59 .396 .416 10.06 10.56 Gauge Plane .02 .04 0.51 1.01 .010 0.25 1 .015 0.381 x 45˚ .025 0.635 .720 .730 18.29 18.54 .008 0.20 Nom.] .110 2.79 Max .008 .0135 0.20 0.34 .025 BSC 0.635 .008 0.20 .016 0.40 0-8˚ X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 56-Pin TSSOP (240 MIL WIDE) - Package Code: A56 56 .236 .244 1 .547 .555 6.0 6.2 13.9 14.1 1.20 .047 Max. SEATING PLANE .004 .008 0.45 0.75 .0197 BSC 0.50 .07 .011 0.17 0.27 .002 .006 0.05 0.15 0.09 0.20 .018 .030 .319 BSC 8.1 X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 4 PS8177A 12/14/98