PI74LCX16501 [ETC]
Logic | 18-Bit Registered Transceiver ; 逻辑| 18位寄存收发器\n
| 型号： | PI74LCX16501 |
| 厂家： | 
ETC |
| 描述： | Logic | 18-Bit Registered Transceiver
|
| 文件： | 总6页 (文件大小：151K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74LCX16501
Fast CMOS 18-Bit Registered Transceivers
Product Description
Pericom Semiconductor’s PI74LCX series of logic circuits are
produced using the Company’s advanced 0.6 micron CMOS
technology, achieving industry leading speed grades.
Product Features
• FunctionallycompatiblewithFCT3,LVT, and74series
16501 families of products
• Tri-State outputs
ThePI74LCX16501isan18-bitregisteredbustransceiverdesigned
with D-type latches and flip-flops to allow data flow in transparent,
latched, and clocked modes. The Output Enable (OEAB and
OEBA, Latch Enable (LEAB and LEBA) and Clock (CLKAB and
CLKBA) inputs control the data flow in each direction. When
LEAB is HIGH, the device operates in transparent mode for A-to-
B data flow. When LEAB is LOW, the A data is latched if CLKAB
is held at a HIGH or LOW logic level. The A bus data is stored in
the latch/flip-flop on the LOW-to-HIGH transition of CLKAB, if
LEAB is LOW. OEAB performs the output enable function on the
B port. Data flow from B port to A port is similar using OEBA,
LEBA and CLKBA. This high-speed, low-power device offers a
flow-through organization for ease of board layout.
• 5V Tolerant inputs and outputs
• 2.0V-3.6V VCC supply operation
• Balanced sink and source output drives (24 mA)
• Low ground bounce outputs
• Power down High Impedance inputs and outputs
• Supports live insertion
• ESDProtectionexceeds2000V,HumanBodyModel
200V, Machine Model
• Packagesavailable:
–56-pin240-milwideplasticTSSOP(A)
–56-pin300-milwideplasticSSOP(V)
ThePI74LCX16501canbedrivenfromeither3.3Vor5.0Vdevices
allowing this device to be used as a translator in a mixed
3.3V/5.0V system.
Logic Block Diagram
OEAB
CLKBA
LEBA
OEBA
CLKAB
LEAB
A1
C
D
C
B1
D
C
D
C
D
TO 17 OTHER CHANNELS
PS2091B
09/19/02
1
PI74LCX16501
18-Bit Registered Transceivers
Truth Table(1)
Product Pin Description
Inputs
Outputs
Pin Name
OEAB
OEBA
LEAB
LEBA
CLKAB
CLKBA
Ax
Description
OEAB
LEAB
CLKAB
Ax
X
L
H
L
H
X
X
Bx
Z
L
H
L
A-to-B Output Enable Input
B-to-A Output Enable Input (Active LOW)
A-to-B Latch Enable Input
B-to-A Latch Enable Input
A-to-B Clock Input
L
H
H
H
H
H
H
X
H
H
L
L
L
L
X
X
X
↑
B-to-A Clock Input
↑
H
A-to-B Data Inputs or B-to-A 3-State Outputs
B-to-A Data Inputs or A-to-B 3-State Outputs
Ground
H
L
B(2)
B(3)
Bx
GND
Notes:
VCC
Power
1. A-to-B data flow is shown. B-to-A data flow is similar
but uses OEBA, LEBA, and CLKBA.
2. Output level before the indicated steady-state input
conditions were established, provided that CLKAB was
HIGH before LEAB went LOW.
Product Pin Configuration
3. Output level before the indicated steady-state input
conditions were established.
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
OEAB
LEAB
A0
GND
CLKAB
B0
2
4. H = High Voltage Level
3
L = Low Voltage Level
4
GND
A1
GND
B1
Z = High Impedance
5
↑ = LOW-to-HIGH Transition
6
A2
B2
7
VCC
A3
VCC
B3
8
9
A4
A5
B4
B5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
A6
GND
B6
56-PIN
V56
A7
B7
A8
B8
A56
A9
B9
A10
A11
GND
A12
A13
A14
VCC
A15
A16
GND
A17
OEBA
LEBA
B10
B11
GND
B12
B13
B14
VCC
B15
B16
GND
B17
CLKBA
GND
PS2091B
09/19/02
2
PI74LCX16501
18-Bit Registered Transceivers
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 ............................................................................... 120 mA
Power Dissipation .................................................................................... 1.0W
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the de-
vice. This is a stress rating only and functional opera-
tion of the device at these or any other conditions
above those indicated in the operational sections of
thisspecificationisnotimplied. Exposuretoabsolute
maximum rating conditions for 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
PS2091B
09/19/02
3
PI74LCX16501
18-Bit Registered Transceivers
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
—
V
—
—
0.8
—
V
V
V
V
CC = 2.7-3.6
I
I
I
I
I
I
I
I
OH = –0.1mA
OH = –12mA
OH = –18mA
OH = –24mA
OL = 0.1mA
OL = 12mA
OL = 16mA
OL = 24mA
V
CC-0.2
2.2
2.4
2.2
—
—
CC = 2.7
—
—
CC = 3.0
—
—
—
—
V
VOL
Output LOW Voltage
V
V
V
CC = 2.7-3.6
—
0.2
0.4
0.4
0.55
−1.2
±5
CC = 2.7
—
—
CC = 3.0
—
—
—
—
V
IK
Clamp Diode Voltage
Input Leakage Current
Tri-State Output Leakage
VCC = Min., IIN = –18mA
—
−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
or VCC
IN = GND
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
20
PS2091B
09/19/02
4
PI74LCX16501
18-Bit Registered Transceivers
Switching Characteristics over Operating Range
VCC = 3.3V ± 0.3V
VCC = 2.7V
Parameters Description
fmax Maximum Clock Frequency
Conditions
Min.
170
1.5
Max.
Min.
Max.
Units
C
L
= 50 pF
= 500Ω
MHz
R
L
t
PHL
Propagation Delay
Bus to Bus
6.0
6.5
6.5
7.5
6.0
1.5
1.5
1.5
1.5
1.5
7.0
7.5
7.5
8.5
7.0
tPLH
t
PHL
Propagation Delay
Clock to Bus
1.5
1.5
1.5
1.5
tPLH
t
PHL
Propagation Delay
LE to Bus
tPLH
t
PZL
Output Enable Time
t
PZH
ns
t
PLZ
Output Disable Time
t
PHZ
t
S
Setup Time
Hold Time
Pulse Width
2.5
1.5
3.0
2.5
1.5
3.0
tH
tW
tSK(O)
Output to Output Skew(1)
1.0
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
= 50pF
V
IH = 3.3V, VIL = 0V
0.8
V
VOLV
Dynamic LOW Valley Voltage
V
CC = 3.3V, C = 50pF
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.
PS2091B
09/19/02
5
PI74LCX16501
18-Bit Registered Transceivers
PackagingMechanical:56-PinTSSOP(A)Package
56
.236
.244
6.0
6.2
1
.547 13.9
.555 14.1
SEATING PLANE
.047
Max.
1.20
0.09
0.20
.004
.008
0.45 .018
0.75 .030
.0197
BSC
0.50
.007
.011
.002
.006
0.05
0.15
.319
BSC
0.17
0.27
8.1
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
PackagingMechanical:56-PinSSOP(V)Package
56
.291
.396
.299
7.39
7.59
.416
10.06
10.56
Gauge Plane
.02
.04
0.25
.010
0.51
1.01
1
18.29
18.54
.015 0.381
x 45˚
.720
.730
.008
0.20
.025 0.635
Nom.
.110 2.79
Max
.008
.0135
0.20
0.34
.025 BSC
0.635
0.20
0.40
.008
.016
0-8˚
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
OrderingInformation
Ordering Code
Description
PI74LCX16501A
PI74LCX16501V
56-Pin 240-mil wide Plastic TSSOP (A)
56-Pin 300-mil wide Plastic SSOP (V)
Pericom Semiconductor Corporation
2380BeringDrive • SanJose,CA95131•1-800-435-2336 • Fax(408)435-1100• http://www.pericom.com
PS2091B
09/19/02
6
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