PI5C3251L | DigiCamel IC Datasheet

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PI5C3251 PERICOM | Alldatasheet

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Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
PDF pages: 6

Technical content

1 PS7016B 09/14/04

8:1 Mux/DeMux BusSwitch Features:

Near-Zero propagation delay
5Ω switches connect inputs to outputs
Direct bus connection when switches are ON
Ultra Low Quiescent Power (0.2 µA Typical) – Ideally suited for notebook applications
Pin compatible with 74 series 251 logic devices
Packaging (Pb-free & Green available): – 16-pin 150-mil wide plastic QSOP (Q) – 16-pin 300-mil wide plastic SOIC (S) – 16-pin 150-mil wide plastic SOIC (W) – 16-pin 173-mil wide plastic TSSOP (L) Truth Table(1) Select E S2 S1 S0 Y Function H X X X Hi-Z Disable L L L L I0 S2-0 = 0 L L L H I1 S2-0 = 1 L L H L I2 S2-0 = 2 L L H H I3 S2-0 = 3 L H L L I4 S2-0 = 4 L H L H I5 S2-0 = 5 L H H L I6 S2-0 = 6 L H H H I7 S2-0 = 7 Block Diagram Description: Pericom Semiconductor’s PI5C3251 is a Dual 8:1 Multiplexer/ demultiplexer with three-state outputs that is pinout compatible with the PI74FCT251T, 74F251, and 74ALS/AS/LS 251. Inputs can be connected to outputs with low on resistance (5Ω) with no additional ground bounce noise or propagation delay. Pin Configuration Pin Description Pin Name Description I0–7 Data Inputs S0–2 Select Inputs E Enable Y Data Outputs GND Ground VCC Power Note: 1. H = High V oltage Level, L = Low V oltage Level E I0 I1 I2 I3 I4 I5 I6 I7 Y VCCI3 1 I4I2 2 I5I1 3 I6I0 4 I7Y 5 S0NC 6 S1E 7 S28 GND

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(Above which the useful life may be impaired. For user guidelines, not tested.) 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 specifica- tion is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Parameters Description Test Conditions(1) Min. Typ(2) Max. Units VIH Input HIGH V oltage Guaranteed Logic HIGH Level 2.0 VVIL Input LOW V oltage Guaranteed Logic LOW Level –0.5 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 µAIIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ I, Y ≤ VCC ±1 VIK Clamp Diode V oltage VCC = Min., IIN = –18 mA –0.7 –1.2 V IOS Short Circuit Current(3) I (Y) = 0V , Y (I) = VCC 100 mA VH Input Hysteresis at Control Pins 150 mV RON Switch On-Resistance(4) VCC = Min., VIN = 0.0V , ION = 48 mA 5 7 ΩVCC = Min., VIN = 2.4V , ION = 15 mA 10 15 Capacitance (TA = 25°C, f = 1 MHz) Parameters(5) Description Test Conditions Typ. Max. Units CIN Input Capacitance VIN = 0V pFCI(OFF) I0 - I7 Capacitance, Switch Off 6 CY(OFF) Y Capacitance, Switch Off 48 CI(ON) I0 - I7 Capacitance, Switch On 35 54 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. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. Measured by the voltage drop between I and Y pin at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (I,Y) pins. 5. This parameter is determined by device characterization but is not production tested.

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Power Supply Characteristics Parameters Description Test Conditions(1) Min. Typ(2) Max. Units ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 3.0 µA ΔICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.4V(3) 2.5 mA ICCD Supply Current per Input per MHz(4) VCC = Max., I and Y Pins Open E = GND Control Input Toggling 50% Duty Cycle 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 (VIN = 3.4V , control inputs only); I and Y 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 I and Y 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 Description Conditions(1) Com. UnitMin. Max. tIY Propagation Delay(2,3) In to Y CL = 50 pF RL = 500Ω 0.25 ns tSY Bus Select Time Sn to Y 0.5 6.6 tPZH tPZL Bus Enable Time E to Y 0.5 6.0 tPHZ tPLZ Bus Disable Time E to Y 0.5 6.0 Notes: 1. See test circuit and wave forms. 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 0.25 ns for 50 pF 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.

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Packaging Mechanical: 16-pin QSOP (Q) Packaging Mechanical: 16-pin SOIC (S) SEATING PLANE .050 BSC 0-8˚ .2914 .2992 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 7.40 7.60 .398 .413 10.10 10.50 1.27 .0926 .1043 2.35 2.64 .394 .419 10.00 10.65 .0040 .0118 0.10 0.30.013 .020 .020 .030 0.33 0.51 0.508 0.762 .0091 .0125 0.254 0.737 .010 .029 x 45˚ 0.23 0.32 .016 .050 0.41 1.27 .189 .197 .053 .069 .004 .010 SEATING PLANE .025 BSC .007 .010 .228 .244 .150 .157 .016 .050 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 0.635 4.80 5.00 1.35 1.75 5.79 6.19 0.101 0.254.008 .012 0.203 0.305 3.81 3.99 0.178 0.254 0.38 0.41 1.27 .008 0.203 .015 x 45° REF Detail A Detail A .008 0.20 MIN. Guage Plane .010 0.254 .041 1.04 REF .016 .035 0.41 0.89 0˚-6˚ .008 .013 0.20 0.33

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Packaging Mechanical: 16-pin SOIC (W) Packaging Mechanical: 16-pin TSSOP (L) .193 .201 .047 max. .002 .006 SEATING PLANE .0256 BSC .018 .030 .004 .008 .252 BSC .169 .177 X.XX X.XX DENOTES CONTROLLING DIMENSIONS IN MILLIMETERS 0.05 0.15 6.4 0.45 0.75 0.09 0.20 4.3 4.5 1.20 4.9 5.1 0.65 0.19 0.30 .007 .012 SEATING PLANE .050 BSC 0-8˚ .149 .157 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 3.78 3.99 .386 .393 9.80 10.00 1.27 .053 .068 1.35 1.75 .2284 .2440 5.80 6.20 .0040 .0098 0.10 0.25.013 .020 .0155 .0260 0.330 0.508 0.393 0.660 .0075 .0098 0.25 0.50 .0099 .0196 x 45˚ 0.19 0.25 .016 .050 0.41 1.27 REF

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Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com

Ordering Information

Ordering Code Package Code Package Description PI5C3251Q Q 16-pin 150-mil wide QSOP PI5C3251QE Q Pb-free & Green, 16-pin 150-mil wide QSOP PI5C3251S S 16-pin 300-mil wide SOIC PI5C3251SE S Pb-free & Green, 16-pin 300-mil wide SOIC PI5C3251W W 16-pin 150-mil wide SOIC PI5C3251WE W Pb-free & Green, 16-pin 150-mil wide SOIC PI5C3251L L 16-pin 173-mil wide TSSOP PI5C3251LE L Pb-free & Green, 16-pin 173-mil wide TSSOP Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/

Product Information

PI5C3251L specifications and overview.

Summary

8:1 Mux/DeMux BusSwitch

Description

8:1 Mux/DeMux BusSwitch

Source title PI5C3251L Datasheet(PDF) - Pericom Semiconductor Corporation

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