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Part: PI5C3861
Category:
Logic
-> Bus Interface
-> Bus Oriented Circuits
Description: 10-Bit, Bus Switch (FCT861 Pin Out)
Company: Pericom Semiconductor Corporation
Datasheet: Download PI5C3861 datasheet File size : 505 kB
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Datasheet text preview:
PI5C3861
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
10-Bit, 2-Port Bus Switch
Product Features:
· · · · Near zero propagation delay 5-ohm 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 · Packages available: 24-pin 150 mil wide plastic QSOP (Q) 24-pin 300 mil wide plastic SOIC (S) 24-pin 173 mil wide plastic TSSOP (L)
Product Description:
Pericom Semiconductor's PI5C series of logic circuits are produced in the Company's advanced submicron CMOS technology, achieving industry leading performance. The PI5C3861 is a 10-bit, 2-port bus switch designed with a low ON resistance (5-ohm) allowing inputs to be connected directly to outputs. The bus switch creates no additional propagation delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal.
Logic Block Diagram
Product Pin Configuration
A0
B0
A9
B9
NC A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 GND
1 2 3 4 24-Pin 5 L,Q,S 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VCC BE B0 B1 B2 B3 B4 B5 B6 B7 B8 B9
BE
Product Pin Description
Pin Name BE A09 B09 GND VCC Description Bus Enable Input (Active LOW) Bus A Bus B Ground Power
Truth Table(1)
Function Disconnect Connect BE H L A09 Hi - Z B09
NOTE: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance
1
PS7021C
02/26/03
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C3861 10-Bit, 2-Port Bus Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ........... 55°C to +125°C Ambient Temperature with Power Applied ... 40°C to +85°C Supply Voltage to Ground Potential ..... 0.5V to +7.0V DC Input Voltage .......... 0.5V to +7.0V DC Output Current .... 120 mA 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 the Operating Range, TA = 40°C to +85°C, VCC = 5V ±5%)
Parameters Description VIH VIL IIH IIL IOZH VIK IOS VH RON Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Short Circuit Current(3) Input Hysteresis at Control Pins Switch On Resistance
(4)
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 - A, B - VCC VCC = Min., IIN = 18 mA A (B) = 0V, B (A) = VCC VCC = Min., VIN = 0.0V, VCC = Min., VIN = 2.4V, ION = 48 mA ION = 15 mA
Min. 2.0 0.5
Typ(2)
Max. 0.8 ±1 ±1 ±1
Units V V µA µA µA mA
0.7 100
1.2 150 5 10
V m V 7 15 ohm
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 Max. 6 6 8 Units pF pF pF
Notes: 1. For conditions shown as Max. or Min., 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 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
PS7021C
02/26/03
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C3861 10-Bit, 2-Port Bus Switch
Power Supply Characteristics
Parameters Description ICC ÐICC ICCD Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) VCC = Max. VCC = Max. VCC = Max., A and B Pins Open BE = GND Control Input Toggling 50% Duty Cycle Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) Min. Typ(2) 0.1 Max. 10 2.5 0.25 Units µA mA mA/ MHz
Notes: 1. For conditions shown as Max. or Min., 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.
Switching Characteristics over Operating Range
PI5C3861 Com.
Parameters tPLH tPHL tPZH tP Z L tPHZ tP L Z
Description Propagation Delay(2,3) Ax to Bx, Bx to Ax Bus Enable Time BE to Ax or Bx Bus Disable Time BE to Ax or Bx
C o n d i t i o n s (1) CL = 50 pF RL = 500-ohm
Min
Max
Unit
0.25 1.5 1.5 6.5 5.5
ns ns ns
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.
3
PS7021C
02/26/03
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