|
|
Part: PI5C162245A
Category:
Logic
-> Bus Interface
-> Bus Oriented Circuits
Description: 16-Bit Bus Switch W/25 Ohm Resistor (FCT16245 Pinout)
Company: Pericom Semiconductor Corporation
Datasheet: Download PI5C162245A datasheet File size : 505 kB
Request For quote: Find where to buy PI5C162245A
Datasheet text preview:
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16245 PI5C162245 (25)
16-Bit, 2-Port Bus Switch
·
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 Pin compatible with 74 series16245 Industrial operating temperature: 40°C to +85°C Packages available: 48-pin 240 mil wide thin plastic TSSOP (A) 48-pin 150 mil wide plastic BQSOP (B) 48-pin 300 mil wide plastic SSOP (V)
Product Features
Product Description
Pericom Semiconductors PI5C series of logic circuits are produced using the Companys advanced 0.6 micron CMOS technology. The PI5C16245 and PI5C162245 are 16-bit, 2-port bus switches that are pin compatible with the 74 series 16245 16-bit transceiver. Two enable signals (nBE) turn the switches on, similar to the enable signals of the 16245. The bus switch creates no additional propagational delay or additional ground bounce noise. The PI5C162245 device has a built-in 25-ohm series resistor to reduce reflection noise, thus eliminating the need for an external terminating resistor.
Logic Block Diagram
1A0 1B0
Product Pin Configuration
NC
1B0 1B1
1A7
1B7
GND 1B2
1B3 VCC 1B4
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 40 39 38 48-Pin 37 A,B,V 36 35 34 33 32 31 30 29 28 27 26 25
1BE 1A0 1A1
GND 1A2
1A3 VCC 1A4 1A5
1BE
1B5
2A0
2B0
GND 1B6 1B7 2B0
2B1 GND 2B2
GND 1A6 1A7 2A0
2A1 GND 2A2 2A3 VCC 2A4 2A5
2A7
2B7
2B3 VCC 2B4
2BE
2B5
GND 2B6
2B7
GND 2A6
2A7 2BE
Truth Table(1)
Function Disconnect Connect nBE H L nA0-7 Hi- Z nB0- 7
NC
Product Pin Description
Pin Name nBE n A 0 - n A7 nB0-nB7
1
Note: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance
I/O I
I/O I/O
Description Bus Enable Input (Active LOW) Bus A Bus B
PS7025B 06/21/00
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16245/162245 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 +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: S t r e s s e s 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 = 5V ±10%)
Parameters Description VIH VIL I IH II L 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) VCC = Min., VIN = 0.0V, ION = 48mA VCC = Min., VIN = 2.4V, ION = 15mA 16245 162245 16245 162245 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 = 18mA A (B) = 0V, B (A) = VCC Min. 2.0 0.5 -- -- -- -- 100 -- -- 20 -- 20 Typ(2) -- -- -- -- -- 0.7 -- 150 5 28 10 35 Max. -- 0.8 ±1 ±1 ±1 1.2 -- -- 7 40 15 48 Units V V µA µA µA V mA m V
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5) CI N 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 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 pins 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
PS7025B
06/21/00
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16245/162245 16-Bit, 2-Port Bus Switch
Power Supply Characteristics
Parameters Description ICC I C C 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 nBE = GND Control Input Toggling 50% Duty Cycle Test Conditions(1) VIN = GND or VCC VIN = 3.4V(3) Min. -- -- -- Typ(2) 0.1 -- -- Max. 3.0 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.
PI5C16245 Switching Characteristics over Operating Range
PI5C16245 Com. Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ D e s cription Propagation Delay (2,3) xAx to xBx, xBx to xAx, Bus Enable TIme xBE to xAx or xBx, Bus Disable TIme xBE to xAx or xBx, Conditions CL = 50pF RL = 500 M in. 1.5 1.5 M ax. 0.25 6.5 5.5 ns Units
PI5C162245 Switching Characteristics over Operating Range
PI5C162245 Com. Parame te rs tPLH tPHL tPZH tPZL tPHZ tPLZ D e s cription Propagation Delay (2,3) xAx to xBx, xBx to xAx, Bus Enable TIme xBE to xAx or xBx, Bus Disable TIme xBE to xAx or xBx, Conditions CL = 50pF RL = 500 M in. 1.5 1.5 M ax. 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. 3
PS7025B 06/21/00
Others parts begin by pi
PI-1 PI-2 PI-3 PI-4 PI-5 PI-6 PI-7 PI-8 PI-9 PI-10 PI-11 PI-12 PI-13 PI-14 PI-15 PI-16 PI-17 PI-18 PI-19 PI-20 PI-21 PI-22 PI-23 PI-24 PI-25 PI-26 PI-27 PI-28 PI-29 PI-30 PI-31 PI-32 PI-33 PI-34 PI-35 PI-36 PI-37 PI-38 PI-39 PI-40 PI-41 PI-42 PI-43 PI-44 PI-45 PI-46 PI-47 PI-48 PI-49 PI-50 PI-51 PI-52 PI-53 PI-54 PI-55 PI-56 PI-57 PI-58 PI-59 PI-60 PI-61 PI-62 PI-63 PI-64 PI-65 PI-66
|
|
|
