PI5C34EX484NEX [PERICOM]
Bus Driver, CBT/FST/QS/5C/B Series, 4-Func, 10-Bit, True Output, CMOS, PBGA96, 5.50 X 13.50 MM, LFBGA-96;
| 型号： | PI5C34EX484NEX |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Bus Driver, CBT/FST/QS/5C/B Series, 4-Func, 10-Bit, True Output, CMOS, PBGA96, 5.50 X 13.50 MM, LFBGA-96 驱动 逻辑集成电路 |
| 文件： | 总6页 (文件大小：309K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI5C34X484
PI5C34X2484 (25ohm)
40-Bit, 2-Port Bus Switch
Product Features
Product Description
PericomSemiconductorsPI5Cseriesof logiccircuitsareproduced
using the Companys advanced submicron CMOS technology,
achieving industry performance.
Near-zero propagation delay
Lownoise,25Ωversion(PI5C34X2484)
5ohm switches connect inputs to outputs
(PI5C34X484)
ThePI5C34X484andPI5C34X2484are 40-bit,2-portbusswitches
designed with a low ON resistance allowing inputs to be connected
directlytooutputs.Thebusswitchcreatesnoadditionalpropagational
delay or additional ground bounce noise. The switches are turned
ON by the Bus Enable (BE) input signal. Eight bus enable signals
areprovided,oneforeachofthe upperandlowerfivebitsofthefour
10-bitbuses.ThePI5C34X2484isdesignedwithaninternal25ohm
resistor reducing noise reflection in high-speed applications.
Direct bus connection when switches are ON
Ultra-lowquiescentpower(0.2µAtypical)
Ideally suited for notebook applications
Packages available:
96-pinLowProfileFinePitchBallGridArray (N96)
Logic Block Diagram
Product Pin Description
Pin Name
Description
Bus A
2
A
0
4
2
B
0
4
1
A
0
4
1
B
0
4
N
A
0
-
-
N
N
A9
2A
2
B
1A
1
B
Bus B
N
B0
B9
2A
5
9
2B
5
9
1A
5
9
1B
5
9
Bus Enable Pins (Active LOW)
N
BEA, NBE
B
2A
2
B
1A
1
B
Ground
Power
N
GND
N CC
V
2
BE
A
B
1
BE
A
B
2BE
1BE
Note N = 1 through 4 for each set of 10 bit buses
4A
0
4
B
0
4
3A
0
3
B
0
4
4A
4
4
B
3A
4
3B
4
A
5
9
4
B
5
9
3
A
5
9
3
B
5
9
4A
4
B
3A
3B
4
BE
BE
A
B
3
BE
A
B
4
3BE
Truth Table(1)
Function
Disconnect
Connect
NBEA NBEB
B0-B4
Hi-Z
B5-B9
H
L
H
H
L
Hi-Z
Hi-Z
A0-A4
Hi-Z
Connect
H
L
A5-A9
A5-A9
Connect
L
A0-A4
Note:
1. H
= High Voltage Level
Hi-Z = High Impedance
PS8407A
01/19/01
1
PI5C34X484/P15C34X2484(25ohm)
40-Bit,2-PortBusSwitch
Product Pinout by Name
Name Ball Pad Name Ball Pad Name Ball Pad Name Ball Pad
1A0
1B0
2A0
2B0
3A0
3B0
4A0
4B0
A2
A3
A1
B2
C2
B1
C1
D2
D3
D1
D4
D6
C6
D5
C5
B6
A6
B5
A5
A4
E2
E3
E1
F2
G2
F1
G1
H2
H3
H1
H4
H6
G6
H5
G5
F6
E6
F5
E5
E4
J2
J3
J1
N2
N3
N1
P2
R2
P1
R1
T2
T3
T1
T4
T6
R6
T5
R5
P6
N6
P5
N5
N4
1
1
1
2
2
3
3
4
4
5
5
2
2
2
2
2
2
2
2
2
2
1
3
1
1
2
2
3
3
4
4
5
5
4
1
1
2
2
3
3
4
4
5
5
A
A
A
A
1
B
1
A
1
B
1
A
1
B
1
A
1
B
1
A
1
B
2
A
2
B
3
A
3
B
4
A
4
B
5
A
3
B
3
A
3
B
3
A
3
B
3
A
3
B
3
A
4
B
4
A
4
B
4
A
4
B
4
A
4
B
4
A
K2
L2
K1
L1
M2
M3
M1
M4
M6
L6
M5
L5
K6
J6
1
B
5
B
3
B
4
B
1A6
1B6
2A6
2B6
3A6
3B6
4A6
4B6
1
7
7
8
8
9
9
2
2
2
2
2
2
7
3
7
7
8
8
9
9
4
7
7
8
8
9
9
A
A
A
A
1
B
1
A
1
B
1
A
7
B
8
A
8
B
9
A
3
B
3
A
3
B
3
A
4
B
4
A
4
B
4
A
K5
J5
J4
1
B
9
B
3
B
4
B
1
1
A
2
A
B
3
3
A
4
A
BE
B3
BE
F3
BE
K3
BE
P3
B
BE
CC
2
BE
B
BE
CC
4
BE
B
C4
B4
C3
G4
F4
G3
L4
K4
L3
R4
P4
R3
1
2
CC
3
4 CC
V
V
V
V
1
2
3
4
GND
GND
GND
GND
PS8407A 01/19/01
2
PI5C34X484/P15C34X2484(25ohm)
40-Bit,2-PortBusSwitch
Product Pinout [LFBGA (N96) Package]
1
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
2
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
3
4
5
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
6
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
D
E
F
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
1
B
0
1
B
9
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
9
8
7
6
9
8
7
6
9
8
7
6
9
8
7
6
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
1
BE
A
1
VCC
1
GND
1
BE
B
1
A
4
0
1
A
5
2
B
2
B
9
2
BE
A
2VCC
G
H
J
2
GND
2
BE
B
2
A
4
0
2
A
5
3
B
3
B
9
K
L
3
BE
A
3VCC
3
GND
3
BE
B
M
N
P
R
T
3
A
4
0
3
4
A
5
4
B
B
9
4
BE
A
4VCC
4
GND
4
BE
B
4
A
4
4A5
Product Pin Assignment (Top View)
PS8407A
01/19/01
3
PI5C34X484/P15C34X2484(25ohm)
40-Bit,2-PortBusSwitch
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 (Inputs & Vcc Only) ......... 0.5Vto+7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ......0.5Vto+7.0V
DCInputVoltage .....................................................................0.5Vto+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
absolutemaximumratingconditionsforextendedpe-
riods may affect reliability.
DCElectricalCharacteristics (OvertheOperatingRange, TA =40°Cto+85°C, VCC =5V±5%)
Parameters Description
TestConditions(1)
Min.
2.0
0.5
Typ(2) Max.
Units
VIH
VIL
IIH
InputHIGHVoltage
GuaranteedLogicHIGHLevel
GuaranteedLogicLOWLevel
VCC =Max.,VIN =VCC
VCC =Max.,VIN=GND
0≤A,B≤VCC
0.8
±1
V
Input LOW Voltage
InputHIGHCurrent
IIL
Input LOW Current
±1
µA
V
IOZH
VIK
High-Impedance Output Current
ClampDiodeVoltage
±1
VCC =Min., IIN = 18mA
A(B)=0V, B(A)=VCC
0.7
1.2
IOS
Short Circuit Current(3)
100
150
5
7
mA
mV
VH
Input Hysteresis at Control Pins
Switch ON Resistance(4)
RON
VCC =Min.,VIN = 0.0V,
ION =48mA
PI5C34X484
PI5C34X2484
PI5C34X484
PI5C34X2484
20
20
28
10
35
40
15
48
ohm
VCC =Min.,VIN = 2.4V,
ION =15mA
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5)
Description
TestConditions
Typ
Max.
Units
pF
CIN
Input Capacitance
VIN =0V
VIN =0V
6
6
COFF
A/B Capacitance, SwitchOff
CON
A/B Capacitance, Switch On
VIN =0V
8
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. TypicalvaluesareatVCC =5.0V,TA =25°Cambientandmaximumloading.
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.
PS8407A 01/19/01
4
PI5C34X484/P15C34X2484(25ohm)
40-Bit,2-PortBusSwitch
Power Supply Characteristics
Parameters Description
TestConditions(1)
Min. Typ(2) Max.
Units
ICC
Quiescent Power
Supply Current
VCC = Max.,
VIN =GNDorVCC
PI5C34X484
PI5C34X2484
0.1
3.0
µA
∆ICC
Supply Current per
Input@TTLHIGH
VCC =Max.,VIN=3.4V(3)
2.5
mA
ICCD
Supply Current per
Input per MHz(4)
VCC =Max.,
0.25
mA/
MHz
A and B Pins Open
BE1orBE2=GND
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. TypicalvaluesareatVCC =5.0V,+25°Cambient.
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.
PI5C34X484SwitchingCharacteristicsoverOperatingRange
PI5C34X484
Parameters Description
Conditions(1)
Min.
Typ
Max.
Units
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3)
CL = 50pF
RL=500ohm
0.25
AxtoBx,BxtoAx
BusEnableTime
BEXtoAxorBx
BusDisableTime
BExtoAxorBx
1.5
1.5
6.5
5.5
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.
PS8407A
01/19/01
5
PI5C34X484/P15C34X2484(25ohm)
40-Bit,2-PortBusSwitch
PI5C34X2484 Switching Characteristics over Operating Range
PI5C34X2484
Parameters Description
Conditions(1)
Min.
Typ
Max.
Units
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay(2,3)
CL =50pF
RL=500ohm
1.25
AxtoBx,BxtoAx
BusEnableTime
BEXtoAxorBx
BusDisableTime
BExtoAxorBx
1.5
1.5
7.5
5.5
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.
Ordering Information
Part
Pin - Package
Dimensions
PI5C34X484N
PI5C34X2484N
96 - LFBGA (N96)
96 - LFBGA (N96)
5.5mm x 13.5mm
5.5mm x 13.5mm
Pericom Semiconductor Corporation
2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
PS8407A 01/19/01
6
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