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Part: PI3C32X245B
Category:
Interface and Interconnect
-> Mux/Demux/Switch Digital Bus
Description: 3.3V, High-Bandwidth, 16-Bit Bus Switch
Company: Pericom Semiconductor Corporation
Datasheet: Download PI3C32X245B datasheet File size : 402 kB
Request For quote: Find where to buy PI3C32X245B
Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C32X245
2.5V/3.3V, High Bandwidth, Hot Insertion 16-Bit, 2-Port, Bus Switch
Product Features
Near zero propagation delay 5 switches connect inputs to outputs Permits Hot Insertion 5V I/O Tolerant 2.5V Supply Voltage Operation Rail-to-Rail 3.3Vor 2.5V Switching High Bandwidth Operation (>400 MHz) Package: 40-pin, 150-mil-wide plastic BQSOP (B)
Product Description
Pericom Semiconductors PI3C series of logic circuits are produced using the Companys advanced submicron CMOS technology, achieving industry leading performance. The PI3C32X245 is a 2.5V or 3.3V 16-bit, 2-port bus switch designed with a low ON resistance (5) 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 (BEN) input signal. It is very useful in switching signals that have high bandwidth (>400 MHz).
Logic Block Diagram
) )% *- )& )# **& *# * *%
Product Pin Configuration
NC A0 A1 A2 A3 A4 A5 A6 A7 GND NC A8 A9 A10 A11 A12 A13 A14 A15 GND 1 2 3 4 5 6 7 8 9 10 40-Pin B 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC BE1 B0 B1 B2 B3 B4 B5 B6 B7 VCC BE2 B8 B9 B10 B11 B12 B13 B14 B15
Truth Table(1)
Function Disconnect Connect BEN A015 H Hi-Z L B015
Note: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance
Product Pin Description
Pin Name BEN A0A15 B0B15 I/O I I/O I/O Description Bus Enable Input (Active LOW) Bus A Bus A
1
PS8401B
12/10/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C32X245 2.5V/3.3V, High Bandwidth, Hot Insertion, 16-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 (Inputs & VCC Only) ......... 0.5V to +4.6V Supply Voltage to Ground Potential (Outputs & D/O Only) ....... 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%)
Parameters Description VIH VIL I IH II L IOZH VIK RON Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current Clamp Diode Voltage Switch On Resistance(4) Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., IIN = 18mA VCC = Min., VIN = 0.0V, ION = 48mA VCC = Min., VIN = 2.4V, ION = 15mA 0.73 5 8 Min. 2.0 0.5 0.8 ±1 ±1 ±1 1.2 7 15 V µA Typ. (2) Max. Units V
High Impedance Output Current 0 A, B VCC
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5) CIN COFF CON Description Input Capacitance A/B Capacitance, Switch Off A/B Capacitance, Switch On Test Conditions VIN = 0V VIN = 0V VIN = 0V Typ. 3.5 5.0 10.0 Units 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 = 3.3V, 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 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. 5. This parameter is determined by device characterization but is not production tested.
2
PS8401B
12/10/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI3C32X245 2.5V/3.3V, High Bandwidth, Hot Insertion, 16-Bit, 2-Port, Bus Switch
Power Supply Characteristics
Parameters Description ICC ICC Quiescent Power Supply Current Supply Current per Input HIGH Test Conditions(1) VCC = Max. VCC = Max. VIN = GND or VCC VIN = 3.0V(3) Min. Typ.(2) 0.5 Max. 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 driven input (control input only); A and B pins do not contribute to ICC.
Switching Characteristics over 3.3V Operating Range
P13C32X245 Parame te rs De s cription Conditions M in. tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Ax to Bx Bus Enable Time BE to Ax or Bx Bus Disable Time BE to Ax or Bx
(2,3)
Com. M ax. 0.25 1.5 1.5 6.5 5.5
Units
CL = 50pF RL = 500 CL = 50pF RL = 500 R = 500
ns
Switching Characteristics over 2.5V Operating Range
P13C32X245 Parame te rs De s cription Conditions M in. tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay (2,3) Ax to Bx Bus Enable Time BE to Ax or Bx Bus Disable Time BE to Ax or Bx CL = 50pF RL = 500 CL = 50pF RL = 500 R = 500 1.5 1.5 Com. M ax. 0.25 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
PS8401B
12/10/99
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