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PI5C6800
10-Bit Bus Switch with Precharged Outputs
Features
* * * * * * Near-Zero propagation delay 5 switch connection between two ports Ultra-low quiescent power (0.2A typ.) Ideally suited for notebook applications A port is hot swapable Packaging (Pb-free & Green available): - 24-pin 150-mil wide QSOP (Q) - 24-pin 173-mil wide TSSOP (L)
Description
Pericom's Semiconductor's PI5C6800 is a 10-bit bus switch with low On-State resistance. The bus switch creates no additional propagation delay. The switch is turned on by a single enable (ON) input. When ON is LOW, the switch is on and port A is connnected to port B. When ON is HIGH, the switch between port A and port B is open and the B port is precharged to BIASV through the equivalent of a 10-k resistor.
Block Diagram
13
Pin Configuration
ON A1 A2 A3 A4 A5
14
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VCC B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 BIASV
A1
23
B1
A10
B10
A6 A7 A8 A9 A10 GND
ON
Truth Table(1)
Function Connect Precharge ON L H B1 - B1 A1- A1 BIASV
Notes: 1. H = High Voltage Level, L = Low Voltage Level
1
PS8194E
09/13/04
PI5C6800 10-Bit Bus Switch with Precharged Outputs Absolute Maximum Ratings Over Free-Air Temperature Range(1)
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .....................................................-65C to +150C Supply Voltage Range.........................................................-0.5V to +7V DC Input Voltage(2) .............................................................-0.5V to +7V Input Clamp Current, IIK (V1<0) .................................................. -50mA DC Output Current........................................................................ 120mA Power Dissipation(3) ........................................................................ 0.5W
Notes: 1. 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. 2. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 3. The maximum package power dissipation is calculated using a junction temperatue of 150C and a board trace length of 750 mils.
Recommended Operating Conditions
Parameters VCC BIASV VIH VIL TA Description Supply Voltage Supply Voltage High-level input voltage Low-level input voltage Operating free-air voltage -40 Min. 4 1.3 2 0.8 85 C Typ. 5.5 VCC V Units
Electrical Characteristics (Over Recommended Operating Free-air Temperature Range)
Parameters VIK II IO ICC(2) CIN COFF RON(1) ICC VCC = 4.5V, II = -18mA VCC = 5.5V, VI = 5.5V or GND VCC = 4.5V, BIASV = 2.4V, VO = 0 VCC = 5.5V, IO = 0, VI = VCC or GND VCC = 3.6V, One input at 2.7V Other at VCC or GND VI = 3V or 0 VO = 3V or 0, Switch Off VCC = 4V VCC = 4.5V VI = 2.4V, II = 15mA VI = 0V, II = 64mA VI = 0V, II = 30mA VI = 2.4V, II = 15mA -0.20 Test Condidtion Min.
Typ.(3)
Max. -1.2 5 3 2.5
Units V A mA A mA pF
3.5 4.5 14 5 5 10 22 7 7 15
Notes: 1. Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-State resistance is determined by the lower of the voltages of the two (A or B) terminals. 2. This is the increase in supply current for control input. 3. All typical values are at VCC = 5V, TA = 25C.
2
PS8194E
09/13/04
PI5C6800 10-Bit Bus Switch with Precharged Outputs Switching Characteristics Over Recommended Operating Free-air Temperature Range, CL = 50pF.
Parameter tPD(1) tPZH tPZL tPHZ tPLZ BIASV = GND BIASV = 3V BIAS = GND BIAS = 3V Test Conditions From (Input) A or B ON ON To (Input) B or A A or B A or B 3.1 3.6 2.7 3 VCC = 5V 0.5V Min. Max. 0.25 5 5 5 5 VCC = 4V Min. Max. 0.25 6 6 5.5 5.5 ns Units
Notes: 1. This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical On-State resistance of the switch and a load capacitance of 50pF, when driven by an ideal voltage source (zero output impedance).
Parameter Measurements
7V From Output Under Test CL = 50pF (See note 1)
500 500
S1
Open GND
Test tPD tPLZ/tPZL tPHZ/tPZH
S1 Open 7V Open
LOAD CIRCUIT
Output Control (Low Level Enabling)
3V
1.5V
1.5V tPLZ
3V Input tPLH
tPZL
1.5V
tPZH
0V
3.5V
1.5V
1.5V 0V
tPHL
Output Waveform 1 S1 at 6V (see Note 2) Output Waveform 2 S1 at Open (see Note 2)
VOL +0.3V
VOL VOH
tPHZ 1.5V
VOH -0.3V
0V
VOH
Output 1.5V 1.5V
VOL
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES
Notes: 1. CL includes probe and jig capacitance. 2. Waveform 1 is for an output with internal conditions such that the output is LOW except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is HIGH except when disabled by the output control. 3. All input pulses are supplied by generators having the following characteristics: PRR<10MHz, ZO = 50, tr 2.5ns, tf 2.5ns. 4. The outputs are measured one at a time with one transition per measurement. 5. tPLZ and tPHZ are the same as tdis. 6. tPZL and tPZH are the same as ten. 7. tPLH and tPHL are the same as tpd.
3
PS8194E
09/13/04
PI5C6800 10-Bit Bus Switch with Precharged Outputs Applications Information
Logic Inputs The logic control inputs can be driven up to +5.5V regardless of the supply voltage. For example, given a +5.0V supply, IN may be driven low to 0V and high to 5.5V. Driving IN Rail-to-Rail(R) minimizes power consumption. Power-Supply Sequencing Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC before applying signals to the input/ output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
Packaging Mechanical: 24-pin QSOP (Q)
24
.008 0.20 MIN.
.150 .157
3.81 3.99
.008 .013 0.20 0.33
Guage Plane
.010 0.254
1
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.337 .344
8.56 8.74
.015 x 45 0.38
.033 0.84
.053 .069
1.35 1.75
Detail A
SEATING PLANE
.007 .010
.016 .050
0.406 1.27
0.178 0.254
.025 typical 0.635
.008 0.203 .012 0.305
.004 0.101 .010 0.254
.228 .244 5.79 6.20
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
4
PS8194E
09/13/04
PI5C6800 10-Bit Bus Switch with Precharged Outputs Packaging Mechanical: 24-pin TSSOP (L)
24
.169 .177
4.3 4.5
.004 .008
0.09 0.20
1
.303 .311 7.7 7.9
0.45 .018 0.75 .030
.047 1.20 Max
SEATING PLANE
.252 BSC 6.4
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 0.05 .006 0.15
X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
Ordering Information
Ordering Code PI5C6800L PI5C6800LE PI5C6800Q PI5C6800QE Package Code L L Q Q Package Description 24-Pin 173-mil TSSOP Pb-free & Green, 24-Pin 173-mil TSSOP 24-Pin 150-mil QSOP Pb-free & Green, 24-Pin 150-mil QSOP
Notes: 1. Thermal characteristics can be found on the web at www.pericom.com/packaging/ 2. Number of Transistors = TBD
Pericom Semiconductor Corporation 1-800-435-2336 * www.pericom.com
5
PS8194E 09/13/04

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