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Logic Block Diagram
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PI5C16233C
16-Bit to 32-Bit Mux/Demux BusSwitch with Undershoot Protection
Product Features
* * * * * 5 switch connection between two ports Near zero propagation delay -1.5V Input undershoot protection Fast switching speed: 5.0ns (max.) Ultra -low quiescent power (70A typical) - ideal for notebook applications. * Industrial operating temperature: -40C to 85C * Package options: - 56-pin 240 mil wide plastic TSSOP(A) - 56-pin 300 mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor's PI5C series of logic circuits are produced using the Company's advanced submicron CMOS technology. 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.
Product Pin Configuration
56-Pin A, V
Function Table
INPUTS SEL (SEL1/SEL2) L H X TEST L L H FUNCTION A = B1, B2 = Z A = B2, B1 = Z A = B1 and A= B2
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PS8361A
06/28/99
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PI5C16233C 16-Bit to 32-Bit Mux/Demux BusSwitch with Undershoot Protection
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ..................................................... -65C to +150C Ambient Temperature with Power Applied .................... -40C to +85C 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 = -40C to +85C, VCC = 4.5V to 5.5V)
Parameters VIH VIL IIH IIL IOZH VIK RON Description Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Switch On Resistance(3) Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 A, B VCC VCC = Min., IIN = -18mA VCC = Min., VIN = 0.0V, ION = 48mA or 64mA VCC = 4.0V, VIN = 2.4V, ION = 15mA -0.7 5 10 Min. Typ.(2) Max. 2.0 -0.5 0.8 1 1 1 -1.8 8 15 Units V V A A A V
Capacitance (TA = 25C, f = 1 MHz)
Parameters(4) CIN CON Description Input Capacitance A/B Capacitance, Switch On Test Conditions VIN = 0V VIN = 0V Typ. 6 14 Units 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 = 25C 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.
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PS8361A
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Power Supply Characteristics
Parameters Description ICC ICC Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) Test Conditions(1) VCC = Max. VCC = Max. VIN = GND or VCC VIN = 3.4V(3) 2.5 VCC = Max. A and B Pins Open Control Input Toggling 50% Duty Cycle 0.25 mA mA/ MHz Min. Typ.(2) Max. 200 Units A
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PI5C16233C 16-Bit to 32-Bit Mux/Demux BusSwitch with Undershoot Protection
ICCD
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, +25C 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 Propagation Ax to Bx, Bx to Ax Bus Enable Time SEL to Ax or Bx Bus Disable Time SEL to Ax or Bx Delay(2,3) CL = 50pF RL = 500 0.5 0.5 Conditions(1) Com. Min. Max. 0.25 5.2 5.3 ns Units
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 PI5C16233CA PI5C16233CV Pin - Package 56- TSSO P (A56) 56- SSO P (V56) Width 240- mil 300- mil
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
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PS8361A 06/28/99

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