PI5C32X2383A [ETC]
Bus Exchanger ; 总线交换器\n
| 型号： | PI5C32X2383A |
| 厂家： | 
ETC |
| 描述： | Bus Exchanger
|
| 文件： | 总4页 (文件大小：216K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C32X383/PI5C32X2383
20-Bit Bus Switch/Exchange
Product Features
Near-zero propagation delay
Product Description
PericomSemiconductorsPI5Cseriesoflogiccircuitsarepro-duced
in the Companys advanced submicron CMOS technology,
achieving industry leading performance.
Lownoise,25ohmversion(PI5C32X2383)
5 ohm switches connect inputs to outputs (PI5C32X383)
Direct bus connection when switches are ON
The PI5C32X383 and PI5C32X2383 are 20-bit bus switches with
exchange designed with a low ON resistance allowing inputs to be
connected directly to outputs. The bus switch creates no additional
propagationaldelayoradditionalgroundbouncenoise.Theswitches
are turned ON by the Bus Enable (BE) input signal, and the Bus
Exchange (BX) input signal offers nibble swapping of the AB and
CD pairs of signals. This exchange configuration allows byte
swapping of buses in systems. It can also be used as a quad
2-to-1 multiplexer and to create low delay barrel shifters, etc. The
PI5C32X2383isdesignedwithaninternal25ohmresistorreducing
noise reflection in high-speed applications.
Ultra-lowquiescentpower(0.2µAtypical)
Ideally suited for notebook applications
Packagesavailable:
48-pin240-milwidethinplasticTSSOP(A)
48-pin150-milwideplasticQSOP(B)
Product Pin Configuration
48
47
46
45
44
43
42
41
40
39
38
37
BE1
C0
A0
B0
D0
C1
A1
B1
D1
1
2
3
4
5
6
7
8
9
VCC
D4
B4
Applications
10-wide 2:1 MUX, Byte Swapping, and Hot Insertion.
A4
C4
D3
B3
Truth Table(1)
Function
Disconnect
Connect
BEN
H
BXn
X
A0-A9
Hi-Z
B0-B9
Hi-Z
A3
C3
D2
B2
C2 10
A2 11
GND 12
BE2 13
C5 14
A5 15
B5 16
D5 17
C6 18
A6 19
B6 20
D6 21
C7 22
A7 23
GND 24
L
L
C0-C9
D0-D9
D0-D9
C0-C9
48-Pin
Exchange
L
H
BX1
Note: 1. H = High Voltage Level, X = Dont Care,
L = Low Voltage Level, Hi-Z = High Impedance
36 VCC
35 D9
34 B9
33 A9
32 C9
31 D8
30 B8
Logic Block Diagram
A5
B5
C5
D5
A0
C0
D0
A8
29
28
27
26
25
C8
D7
B7
B0
BX2
A9
B9
C9
D9
A4
B4
C4
D4
Product Pin Description
Pin Name
BEn
BXn
Ax
Description
Bus Enable Input (Active LOW)
Bus Exchange Input
Bus A
Bx
Bus B
BX1
Cx
Bus C
BE1
BX2
Dx
Bus D
GND
VCC
Ground
BE2
Power
PS8100
07/10/97
1
PI5C32X383/PI5C32X2383
20-Bit Bus Switch/Exchange
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
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 condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure 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 ±5%)
Parameters Description
TestConditions(1)
Min.
2.0
0.5
Typ(2) Max.
Units
V
VIH
VIL
IIH
InputHIGHVoltage
GuaranteedLogicHIGHLevel
GuaranteedLogicLOWLevel
VCC =Max.,VIN =VCC
0.8
±1
Input LOW Voltage
V
InputHIGHCurrent
µA
µA
µA
V
IIL
Input LOW Current
VCC =Max.,VIN =GND
0AB, CDVCC
±1
IOZH
VIK
IOS
VH
High Impedance Output Current
±1
ClampDiodeVoltage
VCC =Min., IIN = 18mA
AB(CD)=0V,CD(AB)=VCC
0.7
1.2
Short Circuit Current(3)
Input Hysteresis at Control Pins
Switch On Resistance(4)
100
mA
mV
ohm
150
RON
VCC =Min.,VIN = 0.0V,
ION =48mA
PI5C3383
PI5C32383
18
5
7
28
40
VCC =Min.,VIN = 2.4V,
ION =15mA
PI5C3383
PI5C32383
18
10
35
15
48
ohm
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5)
Description
Test Conditions
Typ
Max.
Units
CIN
Input Capacitance
VIN = 0V
VIN = 0V
6
6
pF
pF
COFF
AB/CD Capacitance, Switch Off
CON
AB/CD Capacitance, Switch On
VIN = 0V
8
pF
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.
5. This parameter is determined by device characterization but is not production tested.
PS8100
07/10/97
2
PI5C32X383/PI5C32X2383
20-Bit Bus Switch/Exchange
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
3.0
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.,
AB and CD Pins Open
BE = GND
0.25
mA/
MHz
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, B, C, and D 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, B, C, and D inputs generate no significant AC or DC currents as they transition. This parameter is not tested,
but is guaranteed by design.
PI5C32X383 Switching Characteristics over Operating Range
PI5C32X383
Com
Parameters Description
Conditions(1)
Min.
Typ
Max.
Units
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tBX
Propagation Delay(2,3)
AxtoCx,BxtoDx
BusEnableTime
BEtoCxorDx
Bus Disable Time
BE to Cx or Dx
Bus Exchange Time
BX to Cx or Dx
CL = 50pF
RL = 500ohm
0.25
1.5
1.5
1.5
6.5
5.5
6.5
ns
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.
PS8100
07/10/97
3
PI5C32X383/PI5C32X2383
20-Bit Bus Switch/Exchange
PI5C32X2383 Switching Characteristics over Operating Range
PI5C32X2383
Com
Parameters Description
Conditions(1)
Min.
Typ
Max.
Units
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tBX
Propagation Delay(2,3)
AxtoCx,BxtoDx
BusEnableTime
BEtoCxorDx
Bus Disable Time
BE to Cx or Dx
Bus Exchange Time
BX to Cx or Dx
CL = 50 pF
RL =500ohm
1.25
1.5
1.5
1.5
6.5
5.5
6.5
ns
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
0.25 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
PS8100
07/10/97
4
相关型号：
PI5C32X2384BX
Bus Driver, CBT/FST/QS/5C/B Series, 4-Func, 5-Bit, True Output, CMOS, PDSO48, 0.150 INCH, PLASTIC, BQSOP-48
PERICOM
PI5C32X245BE
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 8-Bit, True Output, CMOS, PDSO40, 0.150 INCH, GREEN, PLASTIC, BQSOP-40
DIODES
PI5C32X245BEX
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 8-Bit, True Output, PDSO40, 0.150 INCH, GREEN, PLASTIC, BQSOP-40
DIODES
PI5C32X245BEX
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 8-Bit, True Output, PDSO40, 0.150 INCH, GREEN, PLASTIC, BQSOP-40
PERICOM
PI5C32X245BX
Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 8-Bit, True Output, PDSO40, 0.150 INCH, PLASTIC, BQSOP-40
PERICOM
©2020 ICPDF网 联系我们和版权申明