PI5C162210K [ETC]
Bus Switch ; 总线开关\n
| 型号： | PI5C162210K |
| 厂家： | 
ETC |
| 描述： | Bus Switch
|
| 文件： | 总3页 (文件大小：197K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C16210
PI5C162210 (25ohm)
20-Bit, 2-Port Bus Switch
Product Description:
Product Features:
Near-zero propagation delay
Pericom Semiconductors PI5C series of BusSwitch circuits are
produced in the Companys advanced sub-micron CMOS
technology, achieving industry leading speed.
5ohm or 25ohm switches connect inputs to outputs
Direct bus connection when switches are ON
32X384 function with flow through pinout make board
layout easier
ThePI5C16210isconfiguredas20-bit,2-portbusswitchesdesigned
with a low ON resistance (5ohm) allowing inputs to be connected
directly to outputs. The bus switch creates no additional
propagationaldelayoradditionalgroundbouncenoise.Theswitches
are turned ON by the Bus Enable (xOE) input signal.
Ultra-low quiescent power (0.2µA typical)
ideally suited for notebook applications
Industrial operating temperature: 40°C to +85°C
Packages available:
The PI5C162210 device has a built-in 25-ohm series resistor to
reduce noise resulting from reflections, thus eliminating the need
for an external terminating resistor.
48-pin 150-mil wide plastic BQSOP (B)
48-pin 173-mil wide plastic TVSOP (K)
48-pin 240-mil wide plastic TSSOP (A)
48-pin 300-mil wide plastic SSOP (V)
Product Pin Configuration
Logic Block Diagram
NC
1
48 1OE
47 2OE
1A
1A
1A
1A
1A
1A
1
2
3
4
5
6
2
1A1
1B1
3
46 1B
45 1B
1
2
3
4
5
4
1B
1B
1B
5
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1A10
1OE
1B10
6
7
GND
GND
8
1A
1A
1A
7
8
9
1B
1B
1B
1B
6
7
8
9
9
10
11
48-Pin
2A1
2B1
1A10
12
13
14
15
16
17
18
19
20
21
22
23
24
A48
B48
K48
V48
2A
2A
1
2
1B10
2B
2B
2B
1
2
3
2A10
2OE
2B10
V
CC
2A
3
GND
GND
2A
2A
2A
2A
2A
2A
4
5
6
7
8
9
2B
2B
2B
2B
2B
2B
4
5
6
7
8
9
Truth Table(1)
Inputs
Inputs/Outputs
1OE
L
2OE
L
1A,1B
2A,2B
2A10
2B10
1A = 1B 2A = 2B
L
H
1A = 1B
Z
2A = 2B
Z
Product Pin Description
H
L
Z
Z
Pin Name
Description
H
H
1OE, 2OE
1A1-1A10, 2A1-2A10
Bus Enable Inputs (Active LOW)
Bus A
Note:
1. H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1B1 - 1B10, 2B1 - 2B10 Bus B
PS8140 09/30/97
1
PI5C16210/162210
20-Bit,2-PortBusSwitch
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
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
Note:
Stresses greater than those listed under MAXI-
MUM 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 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 reli-
ability.
DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 4 to 5V)
Parameters Description
TestConditions(1)
Min.
2.0
0.5
±1
Typ(2) Max.
Units
V
VIH
VIL
II
InputHIGHVoltage
GuaranteedLogicHIGHLevel
GuaranteedLogicLOWLevel
VCC =5.5V.,VIN=5.5VOR GND
VCC =0V,VIN =VCC
0.7
150
5
0.8
±1
10
Input LOW Voltage
Input Current
V
µA
µA
µA
V
IOZH
VIK
IOS
High Impedance Output Current
ClampDiodeVoltage
Short Circuit Current(3)
0 ≤ A, B ≤VCC
VCC =4.5V,IIN =18mA
A(B)=0V,B(A)=VCC
1.2
7
100
mA
mV
ohm
VH
Input Hysteresis at Control Pins
Switch On Resistance(4)
RON
VCC =4.5V,VIN = 0.0V,
ION =30 mA, 64 mA
VCC =4.5V,VIN = 2.4V,
ION = 15 mA
16210
162210
16210
20
28
40
35
15
ohm
ohm
162210
16210
20
48
VCC =4V,VIN = 2.4V,
ION = 15 mA
14
20
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5)
Description
Test Conditions
Typ
Units
CIN
Input Capacitance
VIN = 0V or 3V
VIN = 0V or 3V
4.5
5.5
pF
pF
COFF
A/B Capacitance, Switch Off
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.
5. This parameter is determined by device characterization but is not production tested.
PS8140 09/30/97
2
PI5C16210/162210
20-Bit,2-PortBusSwitch
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
0.1
10
µA
∆ICC
ICCD
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
2.5
mA
Supply Current per
Input per MHz(4)
VCC = Max.,
0.25
mA/
MHz
A and B Pins Open
Control Input Toggling
50% Duty Cycle
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.
PI5C16210 Switching Characteristics over Operating Range
PI5C16210
Vcc = 5V ±0.5V
VCC = 4V
Min Max
Parameters Description
Conditions(1)
Min
Max
Unit
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3)
CL = 50 pF
RL =500ohm
0.25
0.25
6.3
n s
AxtoBx,BxtoAx
BusEnableTime
XOEtoAxorBx
BusDisableTime
XOEtoAxorBx
1.5
1.5
6.5
5.5
ns
ns
5.5
PI5C162210 Switching Characteristics over Operating Range
PI5C162210
Vcc = 5V ±0.5V
Min Max
V
CC =4V
Parameters Description
Conditions(1)
Min
Max
Unit
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3)
CL = 50 pF
RL =500ohm
1.25
6.5
1.25
n s
AxtoBx,BxtoAx
BusEnableTime
XOEtoAxorBx
BusDisableTime
XOEtoAxorBx
1.5
1.5
6.3
5.5
ns
ns
5.5
Notes:
1. See test circuit and wave forms.
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 0.25 ns for 50 pF 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.
Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
PS8140 09/30/97
3
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