PI5C32X245BEX [PERICOM]
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 8-Bit, True Output, PDSO40, 0.150 INCH, GREEN, PLASTIC, BQSOP-40;
| 型号： | PI5C32X245BEX |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 8-Bit, True Output, PDSO40, 0.150 INCH, GREEN, PLASTIC, BQSOP-40 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总4页 (文件大小：322K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C32X245
16-Bit, 2-Port BusSwitch
Features:
Description:
• Near-Zero propagation delay
Pericom Semiconductor’s PI5C32X245 is a 16-bit, 2-port bus
switch. Two enable signals (BEn) turn the switches on. The bus
switch creates no additional propagational delay or additional
ground bounce noise.
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra-low quiescent power (0.2μA typical)
– Ideally suited for notebook applications
• Industrial operating temperature: –40°C to +85°C
• Packaging (Pb-free & Green available):
– 40-pin 150-mil wide plastic BQSOP (B)
Pin Configuration
NC
1
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
Block Diagram
A0
2
BE1
B0
A1
3
A2
B1
4
A
0
7
B
B
0
7
A3
A4
A5
B
2
3
5
B
6
B4
A
7
A6
8
B5
A7
9
B
6
7
BE1
GND
NC
10
11
12
13
14
15
16
17
18
19
20
B
V
CC
A8
B
B
8
A
8
BE2
A9
B
8
9
A
10
11
B
A15
15
A
B10
A12
B11
B12
B13
BE2
A
A
A
13
14
15
B14
GND
B15
(1)
Truth Table
Function
BEn
H
A0–15
Disconnect
Hi-Z
Pin Description
Connect
Note:
L
B0–15
Pin Name
I/O
Description
BEn
I
Bus Enable Input (Active LOW)
1. H = High Voltage Level, L = Low Voltage Level,
Hi-Z = High Impedance
A0-A15
B0-B15
I/O
I/O
Bus A
Bus B
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PI5C32X245
16-Bit, 2-Port BusSwitch
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............................................................................120 mA
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. Ex-
posure to absolute maximum rating conditions for extended
periods may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5V ±10%)
(1)
(2)
Parameters
Description
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
Test Conditions
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
Min.
2.0
Typ
Max. Units
V
V
IH
V
–0.5
0.8
IL
I
I
I
V
CC
CC
= Max., V = V
CC
±1
IH
IN
V
= Max., V = GND
±1
±1
μA
IL
IN
CC
High Impedance Output Current 0 ≤ A, B ≤ V
Clamp Diode Voltage = Min., I = –18 mA
OZ
V
IK
V
CC
–0.7
–1.2
V
IN
(3)
I
OS
SHORT CIRCUITCU RRE N T
A (B) = 0V, B (A) = V
100
M A
CC
V
Input Hysteresis at Control Pins
150
mV
H
V
V
= Min., V = 0.0V, I = 48 mA
5
7
CC
IN
ON
(4)
R
Switch On-Resistance
Ω
OH
= Min., V = 2.4V, I = 15 mA
10
15
CC
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 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.
Capacitance (TA = 25°C, f = 1 MHz)
(1)
Parameters
CIN
Description
Test Conditions
Typ
6
Units
Input Capacitance
COFF
CON
A/B Capacitance, Switch Off
A/B Capacitance, Switch On
VIN = 0V
6
pF
12
Notes:
1. This parameter is determined by device characterization but is not production tested.
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PS7057G
03/23/07
PI5C32X245
16-Bit, 2-Port BusSwitch
Power Supply Characteristics
(1)
(2)
Parameters
Description
Test Conditions
Min.
Typ
Max.
Units
Quiescent Power
Supply Current
I
V
V
= Max.
= Max.
V
V
= GND or V
CC
0.1
3.0
μA
CC
CC
IN
IN
Supply Current per
Input @ TTL HIGH
(3)
ΔI
= 3.4V
2.5
mA
CC
CC
VCC = Max.,
Supply Current per
Input per MHz
A and B Pins Open
Control Input Toggling
50% Duty Cycle
mA/
MHz
I
0.25
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.
(1)
Parameters
Description
Conditions
Unit
Min.
Max.
(1,2)
t
Propagation Delay
PLH
0.25
t
Ax to Bx, Bx to Ax
PHL
t
t
Bus Enable Time
BEX to Ax or Bx
C = 50pF
L
R = 500Ω
L
PZH
1.5
1.5
6.5
5.5
ns
PZL
t
Bus Disable Time
BEx to Ax or Bx
PHZ
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.
3
07-0074
PS7057G
03/23/07
PI5C32X245
16-Bit, 2-Port BusSwitch
Packaging Mechanical: 40-pin BQSOP (B)
X.XX
DENOTES DIMENSION IN MILLIMETERS
X.XX
Ordering Information
Ordering Code
PI5C32X245B
PI5C32X245BE
Package Code
Package Description
B
B
40-pin BQSOP
Pb-free & Green, 40-pin 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
4
07-0074
PS7057G
03/23/07
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