|
Details, datasheet, quote on part number:PI5C162214A
| |
Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16214 PI5C162214 (25)
12-Bit, 3-To-1 Bus-Select Switch
Features
· · · · Near-zero propagation delay 5 switches connect inputs to outputs Direct bus connection when switches are ON Ultra-low quiescent power (0.2µA typical) ideally suited for notebook applications · Industrial operating temperature: 40°C to +85°C · Packages available: 56-pin 240-mil wide plastic TSSOP (A) 56-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductors PI5C series of BusSwitch circuits are produced in the Companys advanced 0.8 micron CMOS technology, achieving industry leading speed. The PI5C16214 and PI5C162214 are 3-to-1 bus-select switches designed with a low ON resistance (5) allowing inputs to be connected directly to outputs. These devices operate as 12-bit bus switches via the data select pins (S0-S2). The PI5C162214 device has a built-in 25-ohm series resistor to reduce noise resulting from reflections, thus eliminating the need for an external terminating resistor.
Logic Block Diagram
ONE OF TWELVE CHANNELS
1A1 1B1
Product Pin Configuration
1A1
S0
1B3 2A1 2B3
1B3
1B2
3A1 3B3 GND 4A1 4B3
FLOW CONTROL
S0 S1 S2
Truth Table(1)
Function Disconnect A1 to B1 A1 to B2 Disconnect Disconnect A1 to B3 A1 to B1 A1 to B2 S2 L L L L H H H H S1 L L H H L L H H S0 L H L H L H L H A1 Z B1 B2 Z Z B3 B1 B2
Note: 1. H = High Voltage Level L = Low Voltage Level Z = High Impedance
5A1 5B3 6A1 6B3 7A1 7B3 VCC 8A1 GND 8B3 9A1 9B3 10A1 10B3 11A1 11B3 12A1 12B3
1 2 3 4 5 6 7 8 9 10 11 5 6 -,P i n AV 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
S1 S2 1B1 1B2 2B1 2B2 3B1
GND 3B2 4B1 4B2 5B1 5B2 6B1 6B2 7B1 7B2 8B1
GND 8B2 9B1 9B2 10B1 10B2 11B1 11B2 12B1 12B2
Product Pin Description
Pin Name SO-S2 xAx xBx
1
I/O I I/O I/O
Description Select Inputs Bus A Bus B
PS7040A 04/23/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16214/162214 3-to-1 Bus-Select 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 +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 ... 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 = 4 to 5V)
Parameters Description VIH VIL II Input HIGH Voltage Input LOW Voltage Input Current Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = 5.5V., VIN = 5.5V OR GND VCC = 0V, VIN = VCC I OZH VIK IO S VH RON High Impedance Output Current Clamp Diode Voltage Short Circuit Current
(3)
Min. 2.0 0.5 -- -- -- -- 100 -- 16214 162214 16214 162214 16214 -- 20 -- 20 --
Typ(2) -- -- -- -- -- 0.7 -- 150 5 28 -- 35 14
Max. -- 0.8 ±1 ±1 10 1.2 -- -- 7 40 15 48 20
Units V V µA µA µA V mA mV
0 A, B VCC VCC = 4.5V, IIN = 18mA A (B) = 0V, B (A) = VCC VCC = 4.5V, VIN = 0.0V, ION = 30mA, 64mA VCC = 4.5V, VIN = 2.4V, ION = 15mA VCC = 4 V, VIN = 2.4V, ION = 15mA
Input Hysteresis at Control Pins Switch On Resistance
(4)
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5) CIN COFF Description Input Capacitance A/B Capacitance, Switch Off Test Conditions VIN = 0V or 3V VIN = 0V or 3V Typ 4.5 5.5 Units pF 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 = 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
PS7040A
04/23/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16214/162214 3-to-1 Bus-Select Switch
Power Supply Characteristics
Parameters Description I CC I C C I CCD Quiescent Power Supply Current Supply Current per Input @ TTL HIGH Supply Current per Input per MHz(4) Test Conditions(1) VCC = Max. VCC = Max. VCC = Max., A and B Pins Open Control Input Toggling 50% Duty Cycle 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 Max. or Min. conditions, 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.
PI5C16214 Switching Characteristics over Operating Range
PI5C16214 Vcc = 5V ±0.5V Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propagation Delay(2,3) Ax to Bx, Bx to Ax Bus Enable Time XOE to Ax or Bx Bus Disable Time XOE to Ax or Bx Conditions (1) CL = 50pF RL = 500 1.5 1.5 Min. Max. 0.25 6.5 5.5 ns Units
PI5C162214 Switching Characteristics over Operating Range
PI5C162214 Vcc = 5V ±0.5V Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propagation Delay(2,3) Ax to Bx, Bx to Ax Bus Enable Time XOE to Ax or Bx Bus Disable Time XOE to Ax or Bx Conditions(1) CL = 50pF RL = 500 1.5 1.5 Min. Max. 1.25 6.5 5.5 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. Pericom Semiconductor Corporation 2380 Bering Drive · San Jose, CA 95131 · 1-800-435-2336 · Fax (408) 435-1100 · http://www.pericom.com
3
PS7040A 04/23/99
|
|
