PI5C34171CAE [PERICOM]
Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 17-Bit, True Output, CMOS, PDSO56, 0.240 INCH, GREEN, PLASTIC, TSSOP-56;
| 型号： | PI5C34171CAE |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 17-Bit, True Output, CMOS, PDSO56, 0.240 INCH, GREEN, PLASTIC, TSSOP-56 开关 PC |
| 文件： | 总4页 (文件大小：77K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C34171C
17-Bit to 34-Bit, Demux PCI Hot-Plug
Bus Switch with –2V Undershoot Protection
ProductFeatures
ProductDescription
• R is 5 Ohm typical
PericomSemiconductor’sPI5Cseriesoflogiccircuitsareproduced
using the Company’s advanced submicron CMOS technology,
achieving industry leading performance.
ON
• Undershoot protection on A port only: –2V
• IndustrialOperationTemperature:–40ºCto+85ºC
• Near Zero propagation delay
The PI5C34171C is a 17 to 34-bit demultiplexer bus switch. It is
intendedforPCIHot-Plugapplications.Industryleadingadvantages
includeapropagationdelayof 250ps,resultingfrom5-Ohmchannel
resistance, and low I/O Capacitance. A port demultiplexes to either
1B and 2B or to both. The switch is bidirectional. The A port can
handle up to –2V undershoot during switch disable.
• ChannelONCapacitance:15pFmax.
• V OperatingRange:+5V±10%
CC
• ESD>2000V....HumanBodyModel
• >100 MHz switching (enable clock rate)
at 20pF load capacitance
• Packages:
Application
– 56-pin plastic TSSOP (A)
Provides PCI Hot Plugging
LogicBlockDiagram
PinDescription
1A
1B1
1B1
2B1
2A
1
1A
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
1B2
2B2
3A
2
1B2
3
3B1
4B1
4A
4
5
3B2
4B2
5A
17A
17B1
6
5B1
6B1
6A
7
17B2
8
5B2
6B2
7A
9
SEL1
SEL2
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
7B1
8B1
8A
7B2
8B2
GND
9A
56-Pin
A
GND
V
CC
9B1
10B1
10A
9B2
10B2
11A
11B2
12B2
13A
13B2
14B2
15A
15B2
16B2
17A
17B2
SEL2
Function
nA to nB1
SEL1
SEL2
11B1
12B1
12A
L
H
L
H
L
L
H
nA to nB2
13B1
14B1
14A
nA to nB1 and nB2
nB1, nB2 = Hi-Z
H
15B1
16B1
16A
17B1
SEL1
PS8498A
11/15/00
1
PI5C34171C
17-Bit to 34-Bit, Demux PCI Hot-Plug
BusSwitchwith–2V UndershootProtection
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Storage Temperature ............................................................. –65°Cto+150°C
Ambient Temperature with Power Applied ............................. –40°Cto+85°C
Stresses greater than those listed under MAXIMUM
RATINGSmaycausepermanentdamagetothedevice.
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
specificationisnotimplied.Exposuretoabsolutemaxi-
mumratingconditionsforextendedperiodsmayaffect
reliability.
Supply Voltage to Ground Potential (Inputs & V Only) ...... –0.5Vto+7.0V
CC
Supply Voltage to Ground Potential (Outputs & D/O Only) .... –0.5Vto+7.0V
DC Input Voltage ..................................................................... –0.5Vto+7.0V
DC Output Current ............................................................................... 120mA
Power Dissipation ................................................................................... 0.5W
DCElectricalCharacteristics(OvertheOperatingRange,T =–40°Cto+85°C,V =5V±10%)
A
CC
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
VIH
VIL
IIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
VCC = Max., Vin = VCC
2.0
–0.5
—
—
—
—
—
—
–0.7
5
—
V
Input LOW Voltage
Input HIGH Current
Input LOW Current
0.8
±1
µA
IIL
VCC = Max., Vin = GND
—
IOZH
VIK
RON
High Impedance Output Current 0 ≤ A, B ≤ VCC
—
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
–1.8
8
V
Ω
V
Switch On Resistance(4)
VCC = Min., VIN = 0.0V, ION = 48mA
VCC = Min., VIN = 2.4V, ION = 15mA
—
—
10
—
18
Undershoot Protection Voltage(3) Max. Inputs, Undershoot Pulse Duration <25ns
—
–2.0
VU
P
Notes:
1. For Min. or max. conditions, use appropriate value specfied under Electrical Characteristics for the applicable device type.
2. TypicalvaluesareatV =5.0V, T =25°Cambientandmaximumloading.
CC
A
3. On AN (Data Input) pins only.
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.
Capacitance(T =25°C,f=1MHz)
A
Parameters(1)
CIN
COFF(B)
CON
Description
Input Capacitance
Test Conditions
Typ.
3.5
Max.
—
Units
B Capacitance, Switch Off
A/B Capacitance, Switch On
VIN = 0V
4.5
—
pF
13.5
—
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. TypicalvaluesareatV =5.0V, T =25°Cambientandmaximumloading.
CC
A
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.
PS8498A
11/15/00
2
PI5C34171C
17-Bit to 34-Bit, Demux PCI Hot-Plug
BusSwitchwith–2V UndershootProtection
PowerSupplyCharacteristics
Parameters(1)
Description
Test Conditions
VIN = GND or VCC
Min. Typ.(2) Max. Units
Quiescent Power
Supply Current
ICC
VCC = Max.
VCC = Max.
—
—
—
200
2.5
µA
Supply Current per
Input @ TTL HIGH
VIN = 3.4V(3)
other pin = VCC or GND
∆ICC
mA
VCC = Max., A & B Pins Open
Control Input Toggling
50% Duty Cycle
Supply Current per
Input per MHz(4)
mA/
MHz
ICCD
—
—
0.60
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. TypicalvaluesareatV =5.0V,+25°Cambient.
CC
3. Per TTL driven input (V = 3.4V, control inputs only); A and B pins do not contribute to I
.
CC
IN
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.
5. Values for these conditions are examples of the I formula. These limits are guaranteed but not tested.
CC
SwitchingCharacteristicsoverOperatingRange
PI5C34171C
Com
Parameters
Description
Conditions
Min.
Typ
Max.
Units
tPLH
tPHL
Propagation Delay(2,3)
A to B
–
0.25
–
CL = 50pF
tPZH
tPZL
Bus Enable Time
SEL to A,B
10
1
–
–
40
6
ns
RL = 500Ω
tPHZ
tPLZ
Bus Disable Time
SEL to A,B
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.
PS8498A
11/15/00
3
PI5C34171C
17-Bit to 34-Bit, Demux PCI Hot-Plug
BusSwitchwith–2V UndershootProtection
56-pinTSSOP(A)
56
.236
.244
6.0
6.2
1
.547 13.9
.555 14.1
SEATING PLANE
.047
Max.
1.20
0.09
0.20
.004
.008
0.45 .018
0.75 .030
.0197
BSC
0.50
.007
.011
.002
.006
0.05
0.15
.319
BSC
0.17
0.27
8.1
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
OrderingInformation
Part
Pin - Package
56-TSSOP (A)
Width
PI5C34171CA
240-mil
ApplicationsInformation
Logic Inputs
The logic control inputs can be driven up to +5.5V regardless of the
supplyvoltage. Forexample,givena+5.0Vsupply,INmaybedriven
®
lowto0Vandhighto5.5V. DrivingINRail-to-Rail minimizespower
consumption.
Power-Supply Sequencing
Proper power-supply sequencing is recommended for all CMOS
devices. Always apply V before applying signals to the input/
CC
output or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd
PericomSemiconductorCorporation
2380BeringDrive • SanJose, CA95131•1-800-435-2336 • Fax(408)435-1100• http://www.pericom.com
PS8498A
11/15/00
4
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