PI5C32EX384BEX [PERICOM]
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 10-Bit, True Output, CMOS, PDSO48, 0.150 INCH, PLASTIC, BQSOP-48;
| 型号： | PI5C32EX384BEX |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 10-Bit, True Output, CMOS, PDSO48, 0.150 INCH, PLASTIC, BQSOP-48 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总5页 (文件大小：459K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C32X384/32X384C
20-Bit, 2-Port Bus Switch
Features
Description
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
Pericom Semiconductor’s PI5C32X384 and PI5C32X384C are
20-bit bus switches designed with a low On-Resistance allowing
inputstobeconnecteddirectlytooutputs.Thebusswitchcreatesno
additional propagational delay or additional ground bounce noise.
The switches are turned ON by the Bus Enable (BE) input signal.
Four bus enable signals are provided, one for each of the upper
and lower five bits of the two 10-bit buses.
• Ultra-low quiescent power 32X384 (0.2µA typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green Available):
– 48-pin 150-mil wide plastic BQSOP (B)
– 48-pin 240-mil wide plastic TSSOP (A)
Pin Configuration
Block Diagram
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B5
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B9
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A15
B15
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B10
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B14
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BEA
BEB
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BEC
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Pin Description
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Pin Name
Description
�
ꢎ
�
ꢃꢃ
BE
Bus Enable Inputs (Active LOW)
X
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ꢏ
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A -A
Bus A
Bus B
Ground
Power
19
0
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B -B
19
0
GND
V
CC
PS7027G
05/11/06
06-0237
1
PI5C32X384/PI5C32X384C
20-Bit, 2-Port Bus Switch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
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
Stresses greater than those listed under MAXIMUM RAT-
INGS 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 ex-
tended periods may affect reliability.
(1)
Truth Table
Function
Disconnect
Connect
Connect
Connect
Function
Disconnect
Connect
Connect
Connect
Note:
BEA
H
BEB
H
B4-B0
Hi-Z
B19-B15
Hi-Z
L
H
A4-A0
Hi-Z
Hi-Z
H
L
A19-A15
A19-A15
B14-B10
Hi-Z
L
L
A4-A0
B9-B5
Hi-Z
BEC
H
BED
H
L
H
A9-A5
Hi-Z
Hi-Z
H
L
A14-A10
A14-A10
L
L
A9-A5
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±5%)
(1)
(2)
Parameters
Description
Test Condidtions
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
Min.
Typ.
Max. Units
V
Input HIGH Voltage
2.0
IH
V
V
Input LOW Voltage
0.8
IL
I
Input HIGH Current
V
V
= Max., V = V
CC
±1
IH
CC
CC
IN
I
Input LOW Current
= Max., V = GND
±1
±1
mA
IL
IN
I
High Impedance Output Current
0 ≤ (A, B) (C, D) ≤ V
CC
OZH
(3)
I
Short Circut Current
A,B (C, D) = 0V, C, D (A, B) = V
300
5
mV
Ω
OS
CC
V
Input Hysteresis at Control Pins
V
V
= Min., V = 0.0V, I = 48mA
7
H
CC
CC
IN
ON
(4)
R
Switch On-Resistance
= Min., V = 2.4V, I = 15mA
10
15
ON
IN
ON
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 AB and CD pin at indicated current through the switch. On-Resistance is determined
by the lower of the voltages on the two (A or B, C or D) pins.
PS7027G
05/11/06
06-0237
2
PI5C32X384/PI5C32X384C
20-Bit, 2-Port Bus Switch
Capacitance (T = 25°C, f = 1 MHz)
A
(1)
Parameters
Descritption
Test Condidtions
Typ.
Max.
Units
C
C
C
Input Capacitance
V
V
V
= 0V
= 0V
= 0V
6
6
8
IN
IN
IN
IN
A/B Capacitance, Switch OFF
A/B Capacitance, Switch On
pF
OFF
ON
Notes:
1. This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
(1)
(2)
Parameters
Description
Test Condidtions
Min. Typ.
Max. Units
Quiescent Power Sup-
ply Current
V
or V
= GND PI5C32X384C
60
0.1
200
µA
3.0
IN
I
V
= Max.
CC
CC
PI5C32X384
CC
Supply Current per
Input @ TTL HIGH
(3)
∆I
CC
V
V
= Max.
= Max.,
V =3.4V
IN
2.5
mA
CC
CC
A and B Pins Open
BE1 or BE2 = GND
Control Input Toggling
50% Duty Cycle
Supply Current per
Input per MHz
mA/
MHz
I
0.25
CCD
(4)
Notes:
1. For Max. or Min. conditons, 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.
PS7027G
05/11/06
06-0237
3
PI5C32X384/PI5C32X384C
20-Bit, 2-Port Bus Switch
Switching Characteristics over Operating Range
PI5C32X384/PI5C32X384C
Parameters
Description
Conditions
Units
Min.
Typ.
Max.
t
t
PLH
(1,2)
Propagation Delay
A to B , B to A
x
0.25
x
x
x
PHL
ns
t
t
C = 50 pF
L
R = 500Ω
L
PZH
Bus Enable Time BE to A or B
x
1.5
1.5
6.5
5.5
x
x
PZL
t
PHZ
Bus Disable Time BE to A or B
x
x
x
t
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.
Packaging Mechanical: 48-pin TSSOP (A)
48
.236
.244
6.0
6.2
1
.488 12.4
.496 12.6
.047
1.20 Max
SEATING PLANE
0.09
0.20
.004
.008
0.45 .018
0.75 .030
.002
.006
0.05
0.15
.007
.010
.0197
BSC
.319
BSC
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
0.50
0.17
0.27
8.1
PS7027G
05/11/06
06-0237
4
PI5C32X384/PI5C32X384C
20-Bit, 2-Port Bus Switch
Packaging Mechanical: 48-pin BQSOP (B)
48
.150
.157
.228
.244
3.80
4.00
5.80
6.20
Gauge Plane
.010 0.25
.020
.029
0.50
0.75
BSC
1
.386
.394
9.80
10.00
.015 0.381
x 45˚
REF
.014 0.356
.008 0.20 Nom
Nom
1.60
.063
.079
2.0
Max
.002 0.05
.009 0.25
5˚
.0157 BSC
0.40
.0051
.009
0.13
0.23
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
Ordering Information
Ordering Code
Package Code
Package Description
PI5C32X384B
B
B
A
B
B
48-pin 150-mil wide plastic BQSOP
PI5C32X384BE
PI5C32X384A
Pb-free & Green, 48-pin 150-mil wide plastic BQSOP
48-pin 240-mil wide plastic TSSOP
PI5C32X384CB
PI5C32X384CBE
48-pin 150-mil wide plastic BQSOP
Pb-free & Green, 48-pin 150-mil wide plastic BQSOP
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
PS7027G
05/11/06
06-0237
5
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