PI74LCX240 [ETC]
Logic | Octal Buffer/Line Driver. OE Active Low ; 逻辑|八路缓冲器/线路驱动器。 OE低电平有效\n
| 型号： | PI74LCX240 |
| 厂家： | 
ETC |
| 描述： | Logic | Octal Buffer/Line Driver. OE Active Low
|
| 文件： | 总6页 (文件大小：149K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74LCX240
Fast CMOS 3.3V 8-Bit Buffer/Line Driver
Product Features
ProductDescription
• FunctionallycompatiblewithFCT3,LVT, and74series
Pericom Semiconductor’s PI74LCX series of logic circuits are
produced using the Company’s advanced 0.6 micron CMOS
technology achieving high speed while maintaining low power
operation.
ThePI74LCX240isan8-bitinvertingbuffer/linedriverdesignedfor
driving high capacitive memory loads. With its balanced-drive
characteristics, this high-speed, low power device provides lower
ground bounce, transmission line matching of signals, fewer line
reflections and lower EMI and RFI effects. This makes it ideal for
driving on-board buses and transmission lines.
240familiesofproducts
• Tri-State outputs
• 5V Tolerant inputs and outputs
• 2.0V-3.6VVCC supplyoperation
• Balanced sink and source output drives (24 mA)
• Low ground bounce outputs
• Power Down High Impedance inputs and outputs
• Supports live insertion
The PI74LCX240 can be driven from either 3.3V or 5.0V devices
allowing this device to be used as a translator in a mixed
3.3V/5.0Vsystem.
• ESDProtectionexceeds2000V,HumanBodyModel
200V, Machine Model
• Packagesavailable:
–20-pin173-milwideplasticTSSOP(L)
–20-pin300-milwideplasticSOIC(S)
Logic Block Diagram
Product Pin Configuration
Product Pin Description
Pin Name Description
OEA
OE
A
, OEB
3-State Output Enable
Inputs (Active LOW)
VCC
OEB
OA0
DB0
OA1
DB1
OA2
DB2
OA3
DB3
OEA
DA0
OB0
DA1
OB1
DA2
OB2
DA3
OB3
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OEB
OA0
20-Pin
L20
DXX
Inputs
DA0
OB0
S20
OXX
Outputs
Ground
Power
GND
DB0
OA1
VCC
DA1
OB1
DB1
OA2
Truth Table(1)
DA2
OB2
Inputs
Outputs
DB2
OA3
OE
A
OE
B
D
XX
OXX
DA3
OB3
L
L
L
L
H
L
H
H
X
L
Z
DB3
H
Note:
1. H = High Voltage Level, X = Don’t Care,
L = Low Voltage Level, Z = High Impedance
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PI74LCX240
3.3V8-BitBuffer/LineDriver
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 .................................................................................... 1.0W
Note:
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 conditions above those indicated in the opera-
tional sections of this specification is not implied.
Exposuretoabsolutemaximumratingconditionsfor
extended periods may affect reliability.
Recommended Operating Conditions
Symbol
Parameter
Min.
2.0
1.5
0
Max.
3.6
Units
VCC
Supply Voltage
Operating
Data Retention
3.6
VI
Input Voltage
5.5
V
V
O
Output Voltage
HIGH or LOW State
TRI-State
0
V
CC
0
5.5
±24
±12
+85
10
I
OH/IOL
Output Current
V
CC = 3.0V-3.6V
CC = 2.7V
mA
V
TA
Free-Air Operating Temperature
Input Edge Rate
−40
°C
V = 0.8V-2.0V, VCC = 3.0V
0
ns/V
∆
t/∆V
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PI74LCX240
3.3V8-BitBuffer/LineDriver
DC Electrical Characteristics (Over the Operating Range, TA = −40°C to +85°C, VCC = 2.7V to 3.6V)
Parameters Description
Test Conditions(1)
Min.
2.0
Typ(2)
Max. Units
V
IH
IL
OH
Input HIGH Voltage
Input LOW Voltage
Output HIGH Voltage
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
—
—
0.8
—
—
—
V
—
—
V
V
V
V
CC = 2.7-3.6
I
I
I
I
I
I
I
I
OH = –0.1 mA
OH = –12 mA
OH = –18 mA
OH = –24 mA
OL = 0.1 mA
OL = 12mA
V
CC-0.2
2.2
2.4
2.2
—
—
CC = 2.7
—
CC = 3.0
—
—
—
0.2
0.4
0.4
0.55
−1.2
±5
V
VOL
Output LOW Voltage
V
V
V
CC = 2.7-3.6
—
CC = 2.7
—
—
CC = 3.0
OL = 16 mA
OL = 24 mA
—
—
—
—
V
IK
Clamp Diode Voltage
Input Leakage Current
Tri-State Output Leakage
VCC = Min., IIN = –18 mA
—
−0.7
—
I
I
0 ≤ V
I
≤ 5.5V
≤ 5.5V
Vcc = 2.7-3.6
—
IOZ
0 ≤ V
O
V
CC = 2.7-3.6
—
—
±5
V
V
V
I
= VIH or VIL
IOFF
Power Down Disable
CC = 0V, VIN or VOUT ≤ 5.5V
—
—
10
10
µA
ICC
Quiescent Power Supply
Current
CC = Max.
CC = Max.
V
IN = GND or VCC
0.1
Quiescent Power Supply
Current
TTL Inputs HIGH
V
V
IN = VCC – 0.6V(3)
500
∆
ICC
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 = 3.3V, +25°C ambient.
3. Per TTL driven input; all other inputs at Vcc or GND.
Capacitance
Parameters Description
Test Conditions
Typ.
7
Units
C
IN
OUT
PD
Input Capacitance
V
V
V
CC = Open, V
CC = 3.3V, V
CC = 3.3V, V
I
= 0V or VCC
C
Output Capacitance
I
= 0V or VCC
8
pF
C
Power Dissipation Capacitance
I
= 0V or VCC, F = 10 MHz
25
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PI74LCX240
3.3V8-BitBuffer/LineDriver
Switching Characteristics over Operating Range
V
CC = 3.3V ± 0.3V
V
Min.
1.5
CC = 2.7V
Parameters Description
Conditions
Min.
Max.
Max.
Units
t
PLH
PHL
Propagation Delay
C
L
= 50 pF
= 500Ω
1.5
6.5
7.5
9.0
8.0
t
D
XX to OXX
RL
t
PZH
Output Enable time
Output Disable Time
Output Skew(1)
1.5
1.5
8.0
7.0
1.0
1.5
1.5
tPZL
ns
t
PHZ
t
PLZ
t
SK
(O)
Note:
1. Skew between any two outputs of the same package, switching in the same direction.
Dynamic Switching Characteristics (TA = +25°C)
Parameters Description
Test Conditions(1)
Typ.
Units
VOLP
Dynamic LOW Peak Voltage
V
CC = 3.3V, C
L
= 50 pF
V
IH = 3.3V, VIL = 0V
0.8
V
VOLV
Dynamic LOW Valley Voltage
V
CC = 3.3V, C = 50 pF
L
V
IH = 3.3V, VIL = 0V
Note:
1. Measured with n–1 outputs switching from High-to-Low or Low-to-High. The remaining output is measured in the LOW state.
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PI74LCX240
3.3V8-BitBuffer/LineDriver
20-pin173-milwideplasticTSSOP(L)Package
20
.169
.177
4.3
4.5
1
.252
.260
0.09
0.20
.004
.008
6.4
6.6
.047
1.20
Max
0.45 .018
0.75 .030
SEATING
PLANE
.238
.269
6.1
6.7
.002
.006
0.05
0.15
.007
.012
.0256
BSC
0.19
0.30
0.65
X.XX DENOTES CONTROLLING
X.XX DIMENSIONS IN MILLIMETERS
20-pin300-milwideplasticSOIC(S)Package
20
7.40
7.60
.2914
.2992
0.254
0.737
.010
.029
x 45˚
1
.496
.511
12.60
12.99
.0091
.0125
0.23
0.32
0-8˚
0.41
1.27
.016
.050
.020 0.508
.030 0.762
REF
2.35
2.65
.0926
.1043
.394
.419
10.00
10.65
SEATING
PLANE
0.10
0.30
.0040
.0118
.050
BSC
1.27
.013
.020
X.XX
DENOTES CONTROLLING
0.33
0.51
X.XX
DIMENSIONS IN MILLIMETERS
Thermal Characteristics can be found on the web: http://www.pericom.com/packaging/
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PS8630A
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PI74LCX240
3.3V8-BitBuffer/LineDriver
OrderingInformation
Note:
1. Thermal characteristics can be found on the web at http://www.pericom.com/packaging
Pericom Semiconductor Corporation
1-800-435-2336 • Fax(408)435-1100• http://www.pericom.com
PS8630A
1/20/04
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