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Details, datasheet, quote on part number:PI3C32X384
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Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C32X384
2.5V/3.3V, High Bandwidth, Hot Insertion 20-Bit, 2-Port, Bus Switch
Product Features
· · · · · · · Near-zero propagation delay 5 ohm switches connect inputs to outputs (PI3C32X384) High Bandwidth (>400 MHz) Permits Hot Insertion. 5V I/O Tolerant 2.5V Supply Voltage Operation Packages available: 48-pin 150-mil wide plastic BQSOP (B)
Product Description
Pericom Semiconductor's PI3C series of logic circuits are produced using the Company's advanced submicron CMOS technology, achieving industry performance. The PI3C32X384, is a 2.5V or 3.3Volt, high-bandwidth 20-bit, 2-port 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.
Applications
· High Bandwidth Data switching · Hot Docking
Product Pin Configuration
BEA B0 A0 A1 B1 B2 A2 A3 B3 B4 A4 GND BEC B5 A5 A6 B6 B7 A7 A8 B8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 4 8 - P i n 40 39 B 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VCC B19 A19 A18 B18 B17 A17 A16 B16 B15 A15 BEB VCC B14 A14 A13 B13 B12 A12 A11 B11 B10 A10 BED
Logic Block Diagram
A0 B0 A5 B5
A4 A15
B4 B15
A9 A10
B9 B10
A19
B19
A14
B14
BEA BEB
BEC BED
Truth Table(1)
Function Disconnect Connect Connect Connect Function Disconnect Connect Connect Connect BE A H L H L BE C H L H L BE B H H L L BE D H H L L B0-B4 Hi-Z A4-A0 Hi-Z A4-A0 B9-B5 Hi-Z A9-A5 Hi-Z A9-A5 B5-B9 Hi-Z Hi-Z A19-A15 A19-A15 B14-B10 Hi-Z Hi-Z A14-A10 A14-A10
B9 A9 GND
Product Pin Description
Pin Name BEX A19 - A0 B19 - B0 GND VCC
1
Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Hi-Z = High Impedance
Description Bus Enable Inputs (Active LOW) Bus A Bus B Ground Power
PS8430B 11/18/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch
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 to Ground Potential ....... 0.5V to +4.6V DC Input Voltage ........... 0.5V to +5.5V 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 Operating Range, TA = 40°C to +85°C, VCC = 3.3V ±10%)
Parame te rs VIH VIL IIH IIL IOZH VIK De s cription Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Te s t Conditions (1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND M in. 2.0 0.5 -- -- -- -- -- -- Typ.(2) -- -- -- -- -- 0.73 5 8 M ax. -- 0.8 ±1 ±1 ±1 1.2 7 15 V µA Units V
High- Impedence Output Current 0 A, B VCC Clamp diode Voltage VCC = Min., IIN = 18mA VCC = Min.,VIN = 0.0V ION = 48mA or 64mA VCC = Min.,VIN = 2.4V ION = 15mA
RON
Switch On Resistance
(3)
Capacitance (TA = 25°C f = 1 MHz)
Parame te rs (4) CIN COFF CON De s cription Input Capacitance A/B Capacitance, Switch Off A/B Capacitance, Switch On VIN = 0V Te s t Conditions Typ. 3.5 5.0 10.0 pF Units
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 = 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. 4. This parameter is determined by device characterization but is not production tested.
2
PS8430B
11/18/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C32X384 2.5V/3.3V, High Bandwidth, Hot Insertion, 20-Bit, 2-Port Bus Switch
Power Supply Characteristics
Parame te rs ICC ICC De s cription Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Te s t Conditions (1) VCC = Max., VIN = GND or VCC VCC = Max., VIN = 3.0V(3) M in. -- -- Typ.(2) 0.50 -- M ax. 1. 0 mA 2.5 Units
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Switching Characteristics over 3.3V Operating Range
Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ De s cription Propogation Delay(2,3) Ax to Bx, Bx to Ax Bus Enable Time BEx to Ax or Bx Bus Disable Time BEx to Ax or Bx C L = 50pF RL = 500- ohm Conditions (1) Com. M in. -- 1.5 1.5 M a x. 0.25 6.5 5.5 ns Units
Switching Characteristics over 2.5V Operating Range
Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ De s cription Propogation Delay(2,3) Ax to Bx, Bx to Ax Bus Enable Time BEx to Ax or Bx Bus Disable Time BEx to Ax or Bx C L = 50pF RL = 500- ohm Conditions (1) Com. M in. -- 1.5 1.5 M a x. 1.25 9.8 8.3 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.
3
PS8430B
11/18/02
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