PI5C16233C 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 16-Bit to 32-Bit Mux/Demux BusSwitch with Undershoot Protection Product Features Product Description • • • • • 5Ω switch connection between two ports Near zero propagation delay -1.5V Input undershoot protection Fast switching speed: 5.0ns (max.) Ultra -low quiescent power (70µA typical) - ideal for notebook applications. • Industrial operating temperature: -40ºC to 85ºC • Package options: - 56-pin 240 mil wide plastic TSSOP(A) - 56-pin 300 mil wide plastic SSOP (V) Pericom Semiconductor’s PI5C series of logic circuits are produced using the Company’s advanced submicron CMOS technology. Logic Block Diagram Product Pin Configuration The PI5C16233C is a 16-bit to 32-bit mux/demux switch. This device can be used for memory bank interleaving. The PI5C16233C can be used as two 8-bit to 16-bit multiplexers or as one 16-bit to 32-bit multiplexer. Two select inputs (SEL1 and SEL2) control the data flow. When the TEST inputs are asserted HIGH, the A port is connected to both the B1 and the B2 ports. 56-Pin A, V Function Table INPUTS FUNCTION SEL (SEL1/SEL2) TEST L L A = B1, B2 = Z H L A = B2, B1 = Z X H A = B1 and A= B2 1 PS8361A 06/28/99 PI5C16233C 16-Bit to 32-Bit Mux/Demux BusSwitch with Undershoot Protection 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 +7V DC Input Voltage ............................................................... –0.5V to +7V DC Output Current ....................................................................... 120mA 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 = 4.5V to 5.5V) Parameters Description Test Conditions(1) Min. Typ.(2) Max. 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 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 = –18mA –0.7 –1.8 V 5 10 8 15 Ω RON Switch On Resistance(3) VCC = Min., VIN = 0.0V, ION = 48mA or 64mA VCC = 4.0V, VIN = 2.4V, ION = 15mA Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) CIN CON Description Test Conditions Input Capacitance A/B Capacitance, Switch On VIN = 0V VIN = 0V Typ. Units 6 14 pF 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. 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 PS8361A 06/28/99 PI5C16233C 16-Bit to 32-Bit Mux/Demux BusSwitch with Undershoot Protection 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 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) Supply Current per Input per MHz(4) VCC = Max. A and B Pins Open Control Input Toggling 50% Duty Cycle ICCD Typ.(2) Max. Units 200 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 (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 tPLH tPHL tPZH tPZL tPHZ tPLZ Description Com. Min. Max. Conditions(1) Delay(2,3) Propagation Ax to Bx, Bx to Ax Bus Enable Time SEL to Ax or Bx Bus Disable Time SEL to Ax or Bx Units 0.25 CL = 50pF RL = 500Ω 0.5 5.2 0.5 5.3 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. Ordering Information Part Pin - Package Width PI5C16233CA 56- TSSO P (A56) 240- mil PI5C16233CV 56- SSO P (V56) 300- mil Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 3 PS8361A 06/28/99