PI5C34171CAEX [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： | PI5C34171CAEX |
| 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 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总4页 (文件大小：354K) |
| 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
Features
Description
• R is 5-ohm typical
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.Aport 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.
ON
• Undershoot protection on A port only: –2V
• Industrial Operation Temperature: –40ºC to +85ºC
• Near-Zero propagation delay
• Channel On-Capacitance: 15pF max.
• V
Operating Range: +5V ±10%
CC
• >2kV ESD Protection (human body model)
• >100 MHz switching (enable clock rate) at
20pF load capacitance
Application
• Provides PCI Hot Plugging
• Packaging (Pb-free & Green available):
– 56-pin plastic TSSOP (A)
Block Diagram
Pin Description
1B
2
1
A
B
B
A
B
B
A
B
B
A
56
55
54
53
52
51
50
49
48
47
46
45
1
1
1
1
2
3
3
4
5
5
6
7
7
8
B
2
A
B
B
2
2
1
1
1
A
3
2
B
B
4
3
4
1
1
1
2
5
2
2
A
6
4
B
7
5
6
1
1
A
B
17
17
1
2
B
A
8
2
2
9
6
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
B
B
7
8
1
1
B
17
B
2
A
B
8
2
SEL
SEL
1
GND
44 GND
V
9
10
10
11
12
12
13
14
14
15
16
16
17
SEL
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
A
CC
9
9
B
B
A
B
B
A
B
B
A
B
B
A
B
B
1
1
2
2
B
10
2
11A
B
B
A
B
B
A
B
1
1
11
12
13
13
14
15
15
16
17
17
2
2
1
1
2
2
Truth Table
Function
SEL1
SEL2
1
1
2
2
A to B
L
H
L
H
L
L
H
n
n
n
n
n
1
B
A
B
SEL
A to B
n
2
1
1
2
2
A to B and B
n 2
n
1
B , B = Hi-Z
1 n
H
2
PS8498D
05/02/07
06-0231
1
PI5C34171C
17-Bit to 34-Bit, DeMux PCI Hot-Plug
Bus Switch with –2V Undershoot Protection
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
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 con-
ditions 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.
Supply Voltage to Ground Potential (Inputs & V Only).....–0.5V to +7.0V
CC
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
DC Electrical Characteristics (Over the Operating Range, T = –40°C to +85°C, V = 5V ±10%)
A
CC
(1)
(2)
Parameters
Description
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
Test Conditions
Min. Typ
Max. Units
V
IH
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
2
V
V
–0.5
0.8
IL
I
V
V
= Max., V = V
IN CC
IH
CC
I
= Max., V = GND
±1
μA
V
IL
CC
IN
CC
I
OZ
High Impedance Output Current 0 ≤ A, B ≤ V
V
Clamp Diode Voltage
V
CC
V
CC
V
CC
= Min., I = –18mA
–0.7
–1.8
8
IK
IN
= Min., V = 0.0V, I = 48mA
5
IN
ON
(4)
R
ON
Switch On-Resistance
Ω
= Min., V = 2.4V, I = 15mA
10
18
IN
ON
(3)
V
Undershoot Protection Voltage
Max. Inputs, Undershoot Pulse Duration < 25ns
–2.0
UP
Notes:
1. For Min. or max. conditions, use appropriate value specfied under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, TA = 25°C ambient and maximum loading.
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 = 1 MHz)
A
(1)
Parameters
Description
Test Conditions
Typ.
3.5
Max.
Units
C
IN
Input Capacitance
C
B Capacitance, Switch Off
A/B Capacitance, Switch On
V
= 0V
IN
4.5
pF
OFF(B)
C
13.5
ON
Notes:
1. This parameter is determined by device characterization but is not production tested.
PS8498D
05/02/07
06-0231
2
PI5C34171C
17-Bit to 34-Bit, DeMux PCI Hot-Plug
Bus Switch with –2V Undershoot Protection
Power Supply Characteristics
(1)
(2)
Parameters
Description
Test Conditions
Min. Typ.
Max. Units
I
Quiescent Power Supply Current
V
CC
V
CC
V
CC
= Max.
V
V
= GND or V
CC
200
μA
CC
IN
(3)
Supply Current per Input
@ TTL HIGH
= 3.4V other
IN
∆I
= Max.
2.5
mA
CC
pin = V or GND
CC
= Max., A & B
Supply Current per Input per
MHz
Pins Open Control
Input Toggling 50%
Duty Cycle
mA/
MHz
I
0.60
CCD
(4)
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.
Switching Characteristics over Operating Range
Com
Parameters
Description
Conditions
Units
Min.
Typ.
Max.
t
t
PLH
(1,2)
Propagation Delay A to B
0.25
PHL
t
t
C = 50pF
L
R = 500-ohm
L
PZH
Bus Enable Time SEL to A,B
Bus Disable Time SEL to A,B
10
1
40
6
ns
PZL
t
t
PHZ
PLZ
Notes:
1. This parameter is guaranteed but not tested on Propagation Delays.
2. 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.
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, control inputs
®
may be driven low to 0V and high to 5.5V. Driving control inputs Rail-to-Rail minimizes power consumption.
Power-Supply Sequencing
Proper power-supply sequencing is recommended for all CMOS devices. Always apply V before applying signals to the input/output
CC
or control pins.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
PS8498D
05/02/07
06-0231
3
PI5C34171C
17-Bit to 34-Bit, DeMux PCI Hot-Plug
Bus Switch with –2V Undershoot Protection
Packaging Mechanical: 56-pin TSSOP (A)
Ordering Information
Ordering Code
PI5C34171CA
PI5C34171CAE
Package Code
Package Description
56-pin 240-mil plastic TSSOP
A
A
Pb-free & Green, 56-pin 240-mil plastic TSSOP
Notes:
•
•
Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
E = Pb-free & Green
• Adding an X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
PS8498D
05/02/07
06-0231
4
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