PI5C32X384_06 PERICOM | Alldatasheet

Document overview

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Technical content

Features

  • Near-Zero propagation delay
  • 5Ω switches connect inputs to outputs
  • Direct bus connection when switches are ON
  • Ultra-low quiescent power 32X384 (0.2µA typical) – Ideally suited for notebook applications
  • Packaging (Pb-free & Green Available): – 48-pin 150-mil wide plastic BQSOP (B) – 48-pin 240-mil wide plastic TSSOP (A) PI5C32X384/32X384C 20-Bit, 2-Port Bus Switch Block Diagram Pin Configuration Pin Description Pin Name Description BEX Bus Enable Inputs (Active LOW) A19-A0 Bus A B19-B0 Bus B GND Ground VCC Power

Description

Pericom Semiconductor’s PI5C32X384 and PI5C32X384C are 20-bit bus switches 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. Four bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses. BEB BEA A19 A15 B19 B15 BED BEC A14 A10 B14 B10 06-0237

20-Bit, 2-Port Bus Switch

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Note: Stresses greater than those listed under MAXIMUM RAT- INGS 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 ex - tended periods may affect reliability. Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Note: 1. H = High V oltage Level L = Low V oltage Level Hi-Z = High Impedance Truth Table(1) Function BEA BEB B4-B0 B19-B15 Disconnect H H Hi-Z Hi-Z Connect L H A4-A0 Hi-Z Connect H L Hi-Z A19-A15 Connect L L A4-A0 A19-A15 Function BEC BED B9-B5 B14-B10 Disconnect H H Hi-Z Hi-Z Connect L H A9-A5 Hi-Z Connect H L Hi-Z A14-A10 Connect L L A9-A5 A14-A10 Parameters Description Test Condidtions(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 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 mAIIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ (A, B) (C, D) ≤ VCC ±1 IOS Short Circut Current(3) A,B (C, D) = 0V , C, D (A, B) = VCC 300 mV VH Input Hysteresis at Control Pins VCC = Min., VIN = 0.0V , ION = 48mA 5 7 ΩRON Switch On-Resistance(4) VCC = Min., VIN = 2.4V , ION = 15mA 10 15 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 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. 06-0237

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Parameters Description Test Condidtions(1) Min. Typ.(2) Max. Units ICC Quiescent Power Sup- ply Current VCC = Max. VIN = GND or VCC PI5C32X384C PI5C32X384 0.1 200 3.0 µA ∆ICC 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., A and B Pins Open BE1 or BE2 = GND Control Input Toggling 50% Duty Cycle 0.25 mA/ MHz Notes: 1. For Max. or Min. conditons, 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); 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. Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Descritption Test Condidtions Typ. Max. Units CIN Input Capacitance VIN = 0V 6 pFCOFF A/B Capacitance, Switch OFF VIN = 0V 6 CON A/B Capacitance, Switch On VIN = 0V 8 Power Supply Characteristics Notes: 1. This parameter is determined by device characterization but is not production tested. 06-0237

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Packaging Mechanical: 48-pin TSSOP (A) .236 .244 .488 .496 .002 .006 SEATING PLANE .007 .010 .0197 BSC .004 .008 .319 12.4 12.6 6.0 6.2 0.50 0.17 0.27 8.1 0.05 0.15 0.09 0.20X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .018 .030 0.45 0.75 .047

1.20 Max

Switching Characteristics over Operating Range Parameters Description Conditions PI5C32X384/PI5C32X384C Units Min. Typ. Max. tPLH tPHL Propagation Delay(1,2) Ax to Bx, Bx to Ax CL = 50 pF RL = 500Ω 0.25 nstPZH tPZL Bus Enable Time BEx to Ax or Bx 1.5 6.5 tPHZ tPLZ Bus Disable Time BEx to Ax or Bx 1.5 5.5 Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 2. 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. 06-0237

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

Ordering Information

Ordering Code Package Code Package Description PI5C32X384B B 48-pin 150-mil wide plastic BQSOP PI5C32X384BE B Pb-free & Green, 48-pin 150-mil wide plastic BQSOP PI5C32X384A A 48-pin 240-mil wide plastic TSSOP PI5C32X384CB B 48-pin 150-mil wide plastic BQSOP PI5C32X384CBE B Pb-free & Green, 48-pin 150-mil wide plastic BQSOP Notes:

  • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
  • E = Pb-free & Green
  • Adding an X suffix = Tape/Reel Packaging Mechanical: 48-pin BQSOP (B) .014 .0157 BSC 0.40 0.356 .008 0.20 .002 .009 5˚ 0.05 0.25 .079 2.0 .010 0.25 Gauge Plane .150 .157 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS 3.80 4.00 .228 .244 5.80 6.20 .020 .029 0.50 0.75 .063 1.60 .015 0.381 .386 .394 9.80 10.00 .0051 .009 0.13 0.23 x 45˚ BSC Nom Max NomREF 06-0237