PI3B32X245_06 PERICOM | Alldatasheet

Document overview

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Technical content

1 PS8337E 11/17/06

  • Fast Switching Speed: 4.5ns max.
  • Permits Hot Insertion
  • Near-zero propagation delay
  • 5 Ω switches connect inputs to outputs
  • Direct bus connection when switches are ON
  • Ultra-low quiescent power (1.0μA typical) – Ideally suited for notebook applications
  • Industrial operating temperature: –40°C to +85°C
  • TTL - compatible control of input levels
  • Packages (Pb-free & Green available): – 40-pin, 150-mil wide plastic BQSOP (B) Logic Block Diagram Product Pin Configuration Product Pin Description Pin Name I/O Description BEn I Bus Enable Input (Active LOW) A0-A15 I/O Bus A B0-B15 I/O Bus B Function BEn A 0–15 Disconnect H Hi-Z Connect L B 0–15 Truth Table(1) Notes: 1. H= High Voltage Level L = Low Voltage Level Hi-Z = High Impedance Product Description The PI3B32X245 is a 3.3V,16-bit, 2-port bus switch. Two enable signals (BEn) turn the switches on. The bus switch creates no additional propagational delay or additional ground bounce noise. PI3B32X245 3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch A0 B0 A7 B4 BE1 A8 B8 A15 B15 BE2 NC GND NC A10 A11 A12 A13 A14 A15 GND GND NC B10 B11 B12 B13 B14 B15 BE1 VCC1 40-Pin B 07-0011

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3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch Supply Voltage to Ground Potential (Inputs & VCC Only) . –0.5V to +4.6V Supply Voltage to Ground Potential (Outputs & D/O Only)–0.5V to +4.6V Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the de- vice. This is a stress rating only and functional opera- tion 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. Parameters(1) Description Test Conditions Typ. Units CIN Input Capacitance V IN = 0V 3.5 pF COFF A/B Capacitance, Switch Off V IN = 0V 8.0 pF CON A/B Capacitance, Switch On V IN = 0V 16.0 pF Notes: 1. This parameter is determined by device characterization but is not production tested. Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) sretemaraPn oitpircseDs noitidnoCtseT )1( .niM. pyT )2( .xaMs tinU V HI egatloVHGIHtupnIl eveLHGIHcigoLdeetnarauG0 .2 V V LI egatloVWOLtupnIl eveLWOLcigoLdeetnarauG5 .0–8 .0 I HI tnerruCHGIHtupnIV CC V,.xaM= NI V= CC 1±A μI LI tnerruCWOLtupnIV CC V,.xaM= NI DNG= I HZO tnerruCtuptuOecnedepmIhgiH0 ≤ B,A ≤ V CC V KI egatloVedoiDpmalCV CC I,.niM= NN =– A m812 .1–V R NO ecnatsiseRnOhctiwS )3( V CC V,.niM= NI I,V0.0= NO Am46roAm84=5 8 Ω V CC V,.niM= NI I,V4.2= NO Am51=0 17 1 Capacitance (TA = 25°C, f = 1 MHz) Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at V CC = 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. 07-0011

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3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch Power Supply Characteristics Parameters Description Test Conditions(1) Min. Typ.(2) Max. Units ICC Quiescent Power V CC = Max. V IN = GND or VCC 1.0 5.0 μA Supply Current ΔICC Supply Current per V CC = Max. V IN = 3.0V(3) 750 μA Input @ TTL HIGH Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at V CC = 3.3V, +25°C ambient. 3. Per TTL driven input (V IN = 3.4V, control inputs only); A and B pins do not contribute to ICC. PI3B32X245 Com. Parameters Description Conditions Min. Max. Units tPLH Propagation Delay(1,2) CL= 50pF 0.25 tPHL Ax to Bx, Bx to Ax R L= 500Ω tPZH Bus Enable Time 1.0 4.0 ns tPZL BEx to Ax or Bx tPHZ Bus Disable Time 1.0 4.5 tPLZ BEx to Ax or Bx 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. Switching Characteristics over Operating Range 07-0011

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3.3V, Hot Insertion 16-Bit, 2-Port Bus Switch Packaging Mechanical: 40-Pin BQSOP (B) X.XX X.XX DENOTES DIMENSION IN MILLIMETERS

Ordering Information

Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 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 Ordering Code Package Code Package Type PI3B32X245B B 40-pin, 150-mil wide plastic BQSOP PI3B32X245BE B Pb-free & Green, 40-pin, 150-mil wide plastic BQSOP 07-0011