PI74ALVC16835V [ETC]
18-Bit Buffer/Driver ; 18位缓冲器/驱动器\n
| 型号： | PI74ALVC16835V |
| 厂家： | 
ETC |
| 描述： | 18-Bit Buffer/Driver
|
| 文件： | 总5页 (文件大小：238K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74ALVC16835
18-Bit Universal Bus Driver
with 3-State Outputs
ProductFeatures
ProductDescription
PI74ALVC16835isdesignedforlowvoltageoperation,
VCC =2.3Vto3.6V
Pericom Semiconductor’s PI74ALVC series of logic circuits
are produced in the Company’s advanced 0.5 micron CMOS
technology, achieving industry leading speed.
Supports PC100 Registered DIMM
The18-bitPI74ALVC16835universalbusdriverisdesigned for2.3V
to3.6VVccoperation.
Typical VOLP (Output Ground Bounce)
<0.8VatVCC =3.3V,TA =25°C
DataflowfromAtoYiscontrolledbyOutputEnable(OE).Thedevice
operates in the transparent mode when LE is HIGH. The A data is
latched if CLK is held at a high or low logic level. If LE is LOW, the
A-busisstoredinthelatch/flip-floponthelow-to-hightransitionof
CLK.WhenOEisHIGH,theoutputsareinthehigh-impedancestate.
Typical VOHV (Output VOH Undershoot)
<2.0VatVCC =3.3V,TA =25°C
Industrial operation at 40°C to +85°C
Packagesavailable:
56-pin240milwideplasticTSSOP(A)
56-pin173milwideplasticTVSOP(K)
56-pin300milwideplasticSSOP(V)
Toensurethehigh-impedancestateduringpoweruporpowerdown,
OE should be tied to Vcc through a pullup resistor; the minimum
value of the resistor is determined by the current-sinking capability
of the driver.
Logic Block Diagram
27
OE
30
CLK
28
LE
54
A1
1D
C1
3
Y1
CLK
TO 17 OTHER CHANNELS
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PI74ALVC16835
18-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
TruthTable(1)†
ProductPinDescription
Pin Name
OE
Description
Inputs
Output Enable Input (Active LOW)
OE
H
L
LE
X
H
H
L
CLK
X
A
X
L
Outputs Y
LE
Latch Enable
Clock Input
Data Input
Data Output
Ground
Z
L
CLK
A
X
Y
L
X
H
L
H
GND
VCC
L
L
↑
Power
L
L
H
X
X
H
↑
L
L
H
Yo(2)
Yo(3)
L
L
L
Product Pin Configuration
Note:
1
H = High Signal Level
L = Low Signal Level
Z = High Impedance
GND
NC
NC
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
NC
2
↑
= Transition LOW-to-HIGH
Y1
A1
3
X = Irrelevant
GND
GND
A2
4
2. Output level before the indicated steady-state input condi-
tions were established, provided that CLK is high
before LE goes low.
3. Output level before the indicated steady-state input
conditions were established.
Y2
5
56-PIN
Y3
A3
6
A-56
K-56
V-56
V
CC
V
CC
7
Y4
A4
8
Y5
Y6
A5
9
A6
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
Y7
GND
A7
A8
Y8
Y9
A9
Y10
Y11
Y12
GND
Y13
Y14
Y15
A10
A11
A12
GND
A13
A14
A15
VCC
A16
A17
GND
A18
CLK
GND
V
CC
Y16
Y17
GND
Y18
OE
LE
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PI74ALVC16835
18-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ............................................................ –65°C to +150°C
Note:
Ambient Temperature with Power Applied ......................... –40°C to +85°C
Input Voltage Range, VIN ...................................................–0.5VtoVCC+0.5V
Output Voltage Range, VOUT .............................................–0.5VtoVCC+0.5V
DC Input Voltage .....................................................................–0.5V to +5.0V
DC Output Current ............................................................................. 100 mA
Power Dissipation ................................................................................... 1.0W
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 indi-
cated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions
for extended periods may affect reliability.
RecommendedOperatingConditions(1)
Parameters
Description
Test Conditions
Min.
2.3
Typ.
Max. Units
V
CC
Supply Voltage
3.6
V
= 2.3V to 2.7V
= 2.7V to 3.6V
= 2.3V to 2.7V
= 2.7V to 3.6V
1.7
CC
V
Input HIGH Voltage
Input LOW Voltage
IH
V
CC
2.0
V
CC
0.7
0.8
V
V
IL
V
CC
V
Input Voltage
0
0
V
CC
IN
V
OUT
Output Voltage
V
CC
-12
-12
-24
12
V
= 2.3V
= 2.7V
= 3.0V
= 2.3V
= 2.7V
= 3.0V
CC
I
OH
High-level Output Current
Low-level Output Current
V
CC
V
CC
mA
°C
V
CC
I
OL
V
CC
12
V
CC
24
T
A
Operating Free-Air Temperature
-40
85
Note:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
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PI74ALVC16835
18-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ± 10%)
(1)
(2)
Parameters
Test Conditions
V
CC
Min.
-0.2
Typ.
Max. Units
I
= -100 mA
Min. to Max.
2.3V
V
CC
OH
I
= -6 MA
V
IH
= 1.7V
= 1.7V
= 2.0V
= 2.0V
= 2.0V
2.0
OH
V
IH
2.3V
1.7
2.2
2.4
2.0
V
OH
I
OH
= -12 mA
V
IH
2.7V
V
IH
3.0V
V
I
OH
= -24 MA
V
IH
3.0V
I
= 100 mA
Min. to Max.
2.3V
0.2
0.4
0.7
0.4
0.55
±5
OL
I
= 6 mA
V
= 0.7V
= 0.7V
= 0.8V
= 0.8V
OL
IL
V
OL
V
IL
2.3V
I
= 12 MA
= 24 mA
OL
V
IL
2.7V
I
OL
V
IL
3.0V
I
I
V = V or GND
I
3.6V
CC
(3)
I
V
= V or GND
3.6V
±5
mA
40
OZ
O
CC
I
V = V or GND
I = 0
O
3.6V
CC
I
CC
DI
CC
One input at V - 0.6V, Other inputs at V or GND 3V to 3.6V
750
CC
CC
C Control Inputs
I
V = V or GND
3.3V
3.3V
3.3V
3.5
6
I
CC
Data Input
V
O
= V or GND
pF
CC
C
Outputs
V
O
= V or GND
7
O
CC
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the
applicable device type.
2. Typical values are at V = 3.3V, +25°C ambient and maximum loading.
CC
3. For I/O ports, the I includes the input leakage current.
OZ
Timing Requirements over Operating Range
V
CC
= 2.5 V ± 0.2V
V
= 2.7V
V = 3.3V ± 0.3V
CC
CC
Parameters
Description
Units
Min.
0
Max.
Min. Max. Min.
Max.
f
Clock frequency
LE high
150
0
150
0
150
MHz
CLOCK
3.3
3.3
2.2
1.9
1.3
0.6
1.4
0
3.3
3.3
2.1
1.6
1.1
0.6
1.7
0
3.3
3.3
1.7
1.5
1
t
W
Pulse
Duration
CLK high or low
Data before CLK
ns
t
Setup time
Data before LE¯, CLK High
Data before LE¯, CLK Low
Data after CLK
SU
0.7
1.4
0
t
H
Hold time
Data after LE¯, CLK High or Low
Input Transition Rise or Fall
(1)
Dt/Dv
10
10
10
ns/V
Note:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
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PI74ALVC16835
18-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS
SwitchingCharacteristicsOverOperatingRange(1)
V
= 2.5V ± 0.2V
V
= 2.7V
V = 3.3 V ± 0.3V
CC
CC
CC
From
(Input)
To
(Output)
Parameter
Units
(2)
(2)
(2)
Min.
150
1
Max. Min.
150
Max. Min.
Max.
f
150
1
MHz
MAX
t
PD
A
LE
Y
Y
Y
Y
Y
4.2
5
4.2
4.9
5.2
5.6
4.3
3.6
4.2
4.5
4.6
3.9
t
PD
1.3
1.3
t
PD
CLK
OE
OE
1.4
1.4
1
5.5
5.5
4.5
1.4
1.1
1.3
ns
t
EN
t
DIS
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
Switching Characteristics, from 0ºC to 65ºC, CL = 50pF
V
CC
= 3.3V ± 0.15V
From
(Input)
To
(Output)
Parameters
Units
Min.
1.7
Max.
t
PD
CLK
Y
4.5
ns
OperatingCharacteristics,TA =25°C
Parameters
V
CC
= 2.5V ± 0.2V
V
CC
= 3.3V ± 0.3V
Test
Conditions
Units
Typical
26
Typical
31
Outputs Enabled
C
Power Dissipation
Capacitance
C = 50pF,
L
F = 10 MHz
PD
pF
Outputs Disabled
12
14
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
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