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Part: PI5C162292A
Category:
Logic
-> Bus Interface
Description: 24-bit Mux/demux Bus Switch
Company: Pericom Semiconductor Corporation
Datasheet: Download PI5C162292A datasheet File size : 505 kB
Request For quote: Find where to buy PI5C162292A
Datasheet text preview:
PI5C16292 PI5C162292 (25)
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
24-Bit Mux/Demux Bus Switch
Features
· · · · · Near-zero propagation delay 5 switches connect inputs to outputs Direct bus connection when switches are ON Internal 500 pull-down on A2 ports Ultra-low quiescent power (0.2µA typical) Ideally suited for notebook applications · Industrial operating temperature: 40°C to +85°C · Make-before-break switching · Packages available: 56-pin 240-mil wide thin plastic TSSOP (A) 56-pin 300-mil wide plastic SSOP (V)
Description
Pericom Semiconductor's PI5C series of logic circuits are produced using the Company's advanced 0.6 micron CMOS technology. The PI5C16292 and PI5C162292 are 12-bit to 24-bit Mux/Demux Bus switches designed with a low ON resistance allowing inputs to be connected directly to outputs. The PI5C162292 device has a built-in 25-ohm series resistor to reduce noise resulting from reflections, thus eliminating the need for an external terminating resistor. A2 port is not externally connected and, as a result, has an internal 500-ohm pulldown resistor to ground.
Applications
· Memory switching
Pin Configuration
S0
1A1
Logic Block Diagram
NC1 2A 1 NC1 3A1 NC1 GND 4A1 NC1 5A1 NC1 6A1 NC1
7A1
1 2 3 4 5 6 7 8
56 55 54 53 52 51 50 49 48 47 46
NC NC
1B1 1B 2 2B1 2B 2 3B1
GND
3B 2 4B1 4B 2 5B1 5B 2 6B1 6B 2 7B1 7B 2 8B1
NC1 VCC 8A1 GND NC1
9 10 11 12 5 6 - P i n 45 A , V 44 13 14 43 15 42 16 41 17 40 18 39 19 38 20 21 22 23 24 25 26 27 28 37 36 35 34 33 32 31 30 29
GND
8B2 9B1 9B 2 10B1 10B2 11B1 11B2 12B1 12B2
Truth Table
Function A1 to B1, A2 to B2 A1 to B2, A2 to B1 S0 L H A1 B1 B2 A2 B2 B1
9A1
NC1
10A1 NC1 11A1 NC1 12A1 NC1
Note: 1. H = High Voltage Level L = Low Voltage Level Z = High Impedance
Product Pin Description
Pin Name S0 xA1 xBx NC NC1 I/O I
I/O I/O
Description Select Inputs Bus A Bus B Internally pulled up thru 4.7k resistor Leave it unconnected
1
PS8139C
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21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16292/162292 24-Bit Mux/Demux BusSwitch (25)
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 +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ....... 0.5V to +7.0V DC Input Voltage ....... 0.5V to +7.0V DC Output Current ... 120mA Power Dissipation ....... 1Watt
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.
Recommended Operating Condition
Parameter VCC VIH VIL TA Description Supply Voltage High-Level Input Voltage Low-Level Input Voltage Operating Free-Air Temperature Min. 4 2 -- 40 Max. 5.5 -- 0.8 85 Units V V V °C
DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 5V ±10%)
Parameters Description VIH VIL II VIK IOS VH rO N Input HIGH Voltage Input LOW Voltage Input Current Clamp Diode Voltage Short Circuit Current
(3)
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC or GND VCC = 0, VIN = VCC VCC = Min., IIN = 18mA A(B) = 0V, B (A) = VCC VCC = Min., VIN = 0.0V, ION = 64mA VCC = Min., VIN = 2.4V, ION = 15mA 16292 162292 16292 162292
Min. 2.0 0.5 -- -- -- 100 -- -- 20 -- 20
T y p(2) -- -- -- -- 0.7 -- 150 5 28 -- 35
Max. -- 0.8 ±1 10 1.2 -- -- 7 40 12 48
Units V V µA µA V mA mV
Input Hysteresis at Control Pins Switch On Resistance(4)
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 Max. 6 10 20 Units pF pF pF
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 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
PS8139C 01/11/00
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16292/162292 24-Bit Mux/Demux BusSwitch (25)
Power Supply Characteristics
Parameters ICC ICC(3) ICCD Description Quiescent Power Supply Current Supply Current for S0 @ TTL HIGH Supply Current for S0 per MHz(5) Toggling 50% Duty Cycle VCC = MAX. VCC = MAX. VCC = Max., A and B Pins Open Test Conditions(1) Min. VIN = GND or VCC VIN = 3.4 V(4) Other Inputs at VCC OR GND Typ(2) -- -- -- Max. 0.1 -- -- Units 3.0 2.5 0.75 µA mA mA/ MHz
Notes: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for applicable device. 2. Typical values are at VCC = 5.0V, +25°C ambient. 3. This is the increase in supply current for S0 at the specified TTL voltage level rather than VCC or GND. 4. Per TTL driven input (VIN = 3.4V, S0 only); A and B pins do not contribute to ICC. 5. 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.
PI5C16292 Switching Characteristics over Operating Range
PI5C16292 Com. Parameters tP L H tP H L tP Z H tPZL tP H Z tPLZ tM Description Conditions ( 1 ) Min -- 1.5 1.5 1.5 0 Max 0.25 6.5 7 8 2 Units ns ns ns ns Propagation Delay(2,3) xA1 to xBx, xBx to xA1 CL = 50pF Bus Enable time RL = 500 S to xA1 or xBx R = 500 to 7V(4) Bus Disable time S to xA1 or xBx Make-before-break time(2)
PI5C162292 Switching Characteristics over Operating Range
PI5C162292 Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tM Description Propagation Delay xA1 to xBx, xBx to xA1 Bus Enable Time S to xA1 or xBx Bus Disable Time S to xA1 or xBx Make-before-break time(2)
(2,3)
Conditions
(1)
Min --
Max 1.25 6.5 7 8 2
Units ns ns ns ns
CL = 50pF RL = 500 R = 500 to 7V(4)
1.5 1.5 1.5 0
Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested. 3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and 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 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. 4. Applies to tPLZ and tPZL.
3
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