PI5C162212V [ETC]
Bus Exchanger ; 总线交换器\n
| 型号： | PI5C162212V |
| 厂家： | 
ETC |
| 描述： | Bus Exchanger
|
| 文件： | 总5页 (文件大小：213K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C16212
PI5C162212 (25Ω)
24-Bit Bus Exchange Switch
ProductFeatures
Near-zero propagation delay
5-ohm switches connect inputs to outputs
ProductDescription
PericomSemiconductorsPI5Cseriesoflogiccircuitsareproduced
using the Companys advanced submicron CMOS technology.
Direct bus connection when switches are ON
Ultra-low quiescent power (0.1µA typical)
Ideally suited for notebook applications
Industrialoperatingtemperature:40°Cto+85°C
Packagesavailable:
ThePI5C16212andPI5C162212are24-bitbusexchangeswitches
designed with a lowONresistance allowing inputs to be connected
directly to outputs. This device operates as a 24-bit bus switch
or a 12-bit exchanger that provides data exchanging between
the four signal ports via the data select pins (S0-S2).
56-pin173-milwideplasticTVSOP(K)
56-pin240-milwidethinplasticTSSOP(A)
56-pin300-milwideplasticSSOP(V)
To reduce noise resulting from reflections, the PI5C162212 has a
built-in 25-ohm series resistor that eliminates the need for an
externalterminatingresistor.
LogicBlockDiagram
ProductPinConfiguration
S
0
S
1
2
1
56
55
54
53
52
51
50
49
48
47
46
ONE OF TWELVE CHANNELS
S
1A1
2
1
A2
1B1
3
1B1
1A1
2A
1
1B2
4
2
A2
2B
1
5
3A
1
2B
2
6
3
A2
3B1
7
1B2
1A2
GND
GND
8
4A
1
3B2
9
4
A2
4B
1
10
11
FLOW CONTROL
5A
1
4B
2
5
A
2
5
B
1
12 56-Pin 45
6
A
1
5B
2
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
A,K,V
S
S
S
0
1
2
6A
2
6B
1
6B
2
7
A
1
7A
2
7B
1
7B
2
V
CC
8A1
8B
1
GND
GND
TruthTable
Function
8A2
8B2
9
A
1
9B
1
S2
L
S1
L
S0
L
A1
Z
A2
Z
9A
2
9B
2
Disconnect
10
A1
10B1
A1 to B1
L
L
H
L
B1
B2
Z
Z
10A
2
10
B2
11
A1
11
B
1
A1 to B2
L
H
H
L
Z
11A
2
11
B
2
A2 to B1
L
H
L
B1
B2
Z
12
A1
12
B
1
12A
2
12
B
2
A2 to B2
H
H
H
H
Z
Disconnect
L
H
L
Z
ProductPinDescription
A1 to B1, A2 to B2
A1 to B2, A2 to B1
H
H
B1
B2
B2
B1
Pin Name
S0-S2
xAx
I/O
I
Description
Select Inputs
Bus A
H
Note:
1. H=HighVoltageLevel
L=LowVoltageLevel
Z = High Impedance
I/O
I/O
xBx
Bus B
PS7023E
05/08/01
1
PI5C16212/162212
24-BitBus-ExchangeSwitch
MaximumRatings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
StorageTemperature .............................................. 65°Cto+150°C
Ambient Temperature with Power Applied ..............40°Cto+85°C
Supply Voltage to Ground Potential ..........................0.5Vto+7.0V
DC Input Voltage .......................................................0.5Vto+7.0V
DC Output Current ................................................................ 120mA
Power Dissipation ....................................................................... 1W
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device.
Thisisastressratingonlyandfunctional operationofthe
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.
RecommendedOperatingCondition
Parameter
Description
Min.
4
Max.
5.5
Units
V
VCC
Supply Voltage
VIH
High-Level Input Voltage
Low-Level Input Voltage
2
VIL
0.8
85
TA
Operating Free-Air Temperature
40
°C
DCElectricalCharacteristics (OvertheOperatingRange, TA =40°Cto+85°C, VCC =5V±10%)
Parameters
Description
Input HIGH Voltage
Test Conditions(1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
VCC = Max., VIN = VCC or GND
VCC = 0, VIN = VCC
Min.
2.0
0.5
Typ(2)
Max.
Units
VIH
VIL
II
0.7
150
5
V
Input LOW Voltage
Input Current
0.8
±1
10
±1
1.2
7
µA
IOZH
VIK
IOS
High Impedance Output Current
Clamp Diode Voltage
Short Circuit Current(3)
0 A, B VCC
VCC = Min., IIN = 18mA
A (B) = 0V, B (A) = VCC
V
100
mA
mV
VH
Input Hysteresis at Control Pins
Switch On Resistance(4)
RON
16212
VCC = Min., VIN = 0.0V,
ION = 64mA
162212
16212
20
28
35
40
12
48
Ω
VCC = Min., VIN = 2.4V,
ION = 15mA
162212
20
Capacitance(T =25°C,f=1MHz)
A
Parameters(5)
Description
Test Conditions
VIN = 0V
Typ.
Units
CIN
COFF
CON
Input Capacitance
3
A/B Capacitance, Switch Off
A/B Capacitance, Switch On
VIN = 0V
14
30
pF
VIN = 0V
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
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 pin 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.
PS7023E
05/08/01
2
PI5C16212/162212
24-BitBus-ExchangeSwitch
PowerSupplyCharacteristics
Parameters
Description
Quiescent Power Supply Current
Supply Current per Input @ TTL HIGH VCC = 3.6V
Test Conditions(1)
VCC = Max. VIN = GND or VCC
VIN = 2.7V(4)
Min. Typ.(2) Max. Units
ICC
0.1
3.0
0.2
µA
(3)
∆ICC
mA
ICCD
Supply Current per Input per MHz(5)
SN = GND, Control Input Toggling
50% Duty Cycle
VCC = Max.,
A & B Pins Open
0.25 mA/
MHz
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for applicable device.
2. TypicalvaluesareatV =5.0V,+25°Cambient.
CC
3. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V or GND.
CC
4. Per TTL driven input (VIN = 2.7V, control inputs only); A and B pins do not contribute to I
.
CC
5. 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.
PI5C16212SwitchingCharacteristicsoverOperatingRange
PI5C16212
Parameters
Description
Conditions(1)
Com.
Min.
Max.
Units
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3), xAx to xBx, xBx to xAx
Propagation Delay, S to Ax or Bx
0.25
1.5
1.5
1.5
7.5
7.0
6.5
CL = 50pF
RL = 500 ohms
ns
Bus Enable Time, S to xAx or xBx
Bus Disable Time, S to xAx or xBx
PI5C162212SwitchingCharacteristicsoverOperatingRange
PI5C162212
Com.
Parameters
Description
Conditions(1)
Min.
Max.
Units
tPLH
tPHL
Propagation Delay(2,3), xAx to xBx, xBx to xAx
Bus Enable Time, S to xAx or xBx
1.25
tPZH
tPZL
CL = 50pF
RL = 500 ohms
1.5
1.5
7.0
6.5
ns
tPHZ
tPLZ
Bus Disable Time, S to xAx or xBx
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.
PS7023E
05/08/01
3
PI5C16212/162212
24-BitBus-ExchangeSwitch
56-Pin 173-Mil Wide Plastic TVSOP (K) Package
56
.169
.177
4.30
4.50
0.09
0.20
.0035
.008
1
0.45 .018
0.75 .030
.031
.041
0.80
1.05
.252
BSC
6.4
.441
.449
11.20
11.40
SEATING
PLANE
.047
1.20
Max.
.002
.006
0.05
0.15
.016
BSC
.005
.009
0.13
0.23
0.40
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
56-Pin240-MilWideThinPlasticTSSOP(A)Package
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
PS7023E
05/08/01
4
PI5C16212/162212
24-BitBus-ExchangeSwitch
56-Pin 300-Mil Wide Thin Plastic SSOP (V) Package
56
.291
.299
7.39
7.59
.396
.416
10.06
10.56
Gauge Plane
0.25
.02
.04
.010
0.51
1.01
1
18.29
18.54
.015 0.381
x 45˚
.720
.730
.008
0.20
.025 0.635
Nom.
.110 2.79
Max
.008
.0135
0.20
0.34
.025 BSC
0.635
0.20
0.40
.008
.016
0-8˚
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
OrderingInformation
Ordering Code
PI5C16212K
Package Name
Package Type
Temperature Range
40 to 85°C
K56
K56
A56
A56
V56
V56
56-pin TVSOP
56-pin TVSOP
56-pin TSSOP
56-pin TSSOP
56-pin SSOP
56-pin SSOP
PI5C162212K
PI5C16212A
40 to 85°C
40 to 85°C
PI5C162212A
PI5C16212V
40 to 85°C
40 to 85°C
PI5C162212V
40 to 85°C
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
PS7023E
05/08/01
5
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