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PI5C16211
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
24-Bit Bus Switch
Product Features
* * * * Near-zero propagation delay 5 switches connect inputs to outputs Direct bus connection when switches are ON Ultra-low quiescent power (0.2 A typical) - Ideally suited for notebook applications * Industrial operating temperature: -40C to +85C * Packages available: - 56-pin 173-mil wide plastic TVSOP (K) - 56-pin 240-mil wide thin plastic TSSOP (A) - 56-pin 300-mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor's PI5C series of logic circuits are produced using the Company's advanced 0.6 micron CMOS technology. The PI5C16211 is a 24-bit bus switch designed with a low ON resistance allowing inputs to be connected directly to outputs. This device operates as a 24-bit or a 12-bit bus switch, which provides high speed bus switching.
Logic Block Diagram
Product Pin Configuration
NC
1A1
1B1
1A1 1A2 1A3
1 2 3 4 5 6 7 8 9 10
56 55 54 53 52 51 50 49 48 47
1OE1 2OE 1B1 1B2 1B3 1B4 1B5
1A12
1B12
1A4 1A5 1A6
GND
1A7 1A8 1A9
GND
1B6 1B7 1B8 1B9 1B10 1B11 1B12 2B1 2B2 2B3
1OE 2A1 2B1
1A10 1A11
11 46 12 45 56-Pin 13 44 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
2A12
2B12
1A12 2A1 2A2
A, K,V
43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
VCC
2A3
GND
GND
2B4 2B5 2B6 2B7 2B8 2B9 2B10 2B11 2B12
2OE
2A4 2A5 2A6 2A7 2A8
Truth Table
1OE L L H H
Note:
2A9
2OE L H L H
1A, 1B I/Os 1A = 1B 1A = 1B Z Z
2A, 2B I/Os 2A = 2B Z 2A = 2B Z
2A10 2A11 2A12
Product Pin Description
Pin Name S0-S2 xAx xBx
1
1. H = High Voltage Level L = Low Voltage Level Z = High Impedance
I/O I
I/O I/O
Description Select Inputs Bus A Bus B
PS7050B 12/09/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16211 24-Bit Bus Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .................................................................... -65C to +150C Ambient Temperature with Power Applied .................................... -40C to +85C 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 ..........................................................................................1.4W 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 = -40C to +85C, VCC = 5V 10%)
Parameters VIK II ICC
I CC
Description Clamp Diode Voltage Input LOW Current
Test Conditions VCC = 4.5V, II = -18mA VCC = 5.5V, VI = VCC or GND VCC = 0V, VI = 5.5V VCC = 5.5V, VI = VCC or GND VCC = 5.5V, One input at 3.4V, other inputs at VCC or GND VI = 3V or 0 VO = 3V or 0, OE = VCC VCC = 4.0V, VI = 2.4V, II = 15 mA VCC = 4.5V, VI = 0V, II = 64 mA VCC = 4.5V, VI = 0V, II = 30 mA VCC = 4.5V, VI = 2.4V, II = 15 mA
Min. -- -- -- -- -- -- -- -- -- -- --
Typ(1) -- -- -- -- -- 4.5 5.5 14 5 5 8
Max. -1.2 10 1 3.0 2.5 -- -- 20 7 7 12
Units V A mA
Quiescent Power Supply Current Supply Current per Control Input @ TTL High Control Input Capacitance A/B Switch OFF Capacitance Switch On Resistance(3)
CI(2) CIO (OFF)(2) RON
pF
Notes: 1. Typical values are at VCC = 5.0V, TA = 25C ambient and maximum loading. 2. This parameter is determined by device characterization but is not production tested. 3. 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.
2
PS7050B
12/09/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI5C16211 24-Bit Bus Switch
Power Supply Characteristics
Parame te rs VCC VIH VIL TA D e s cription Supply Voltage High Level Input Voltage Low Level Input Voltage O perating Free- Air temp M in. 4.0 2.0 - 40 Typ(1) M ax. 5.5 0.8 85 Units V V V C
Note: 1. Typical values are at VCC = 5.0V, +25C ambient.
Switching Characteristics over Operating Range
From (INPUT) A or B OE OE To (OUTPUT) B or A A or B A or B Te s t Conditions CL = 50pF RL = 500 VCC = 5 V 0.5 V M in. 3.9 3.3 M ax. 0.25 9.3 8.5 VCC = 4 V M in. M ax. 0.25 10.1 7.1 ns Units
Parame te rs tPD
(1)
tEN tDIS
Notes: 1. This parameter is guaranteed but not tested on Propagation Delays. 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.
Ordering Information
Part PI5C16211A PI5C16211K PI5C16211V Pin-Package 56 - TSSO P (A) 56 - TSSO P (K ) 56 - TSSO P (V) Te mpe rature 40C to +85C 40C to +85C 40C to +85C
Pericom Semiconductor Corporation 2380 Bering Drive * San Jose, CA 95131 * 1-800-435-2336 * Fax (408) 435-1100 * http://www.pericom.com
3
PS7050B 12/09/99

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