PI74LPT16373A [PERKINELMER]
Fast CMOS 3.3V 16-BitTransparent Latch; 快速CMOS 3.3V 16 BitTransparent锁
| 型号： | PI74LPT16373A |
| 厂家： | 
PERKINELMER OPTOELECTRONICS |
| 描述： | Fast CMOS 3.3V 16-BitTransparent Latch |
| 文件： | 总7页 (文件大小：429K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74LPT16373
Fast CMOS 3.3V 16-Bit
Transparent Latch
Features
Description
• Compatible with LCX™ and LVT™ families of products
Pericom Semiconductor’s PI74LPT16373 is a 16-bit transparent
latchdesignedwith3-stateoutputsandareintendedforbusoriented
applications. The Output Enable and Latch Enable controls are
organized to operate as two 8-bit latches or one 16-bit latch. When
Latch Enable (LE) is HIGH, the flip-flops appear transparent to
the data. The data that meets the set-up time when LE is LOW is
latched. WhenOEisHIGH, thebusoutputisinthehighimpedance
state.
• Supports 5V Tolerant Mixed Signal Mode Operation
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
Balanced drives (24 mA sink and source)
• Pin compatible with industry standard double-density pinouts
• Low ground bounce outputs
The PI74LPT16373 can be driven from either 3.3V or 5.0V
devices allowing this device to be used as a translator in a mixed
3.3/5.0V system.
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Multiple center pins and distributed Vcc/GND pins minimize
switching noise
• Packaging:
– 48-pin 240-mil wide thin plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Block Diagram
1OE
1LE
2OE
2LE
1D0
2D0
D
C
D
C
1O0
2O0
TO 7 OTHER CHANNELS
TO 7 OTHER CHANNELS
PS2069C
10/05/04
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PI74LPT16373
3.3V 16-Bit Transparent Latch
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ............................................................. –55°C to +125°C
Ambient Temperature with Power Applied ............................ –40°C to +85°C
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 con-
ditions above those indicated in the operational
sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability.
Supply Voltage to Ground Potential (Inputs & V Only)...... –0.5V to +7.0V
CC
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
Pin Configuration
Truth Table
Inputs(1)
Outputs(1)
1
OE
1
2
3
4
5
6
7
8
9
48
47
46
1
1
1
LE
xDx
xLE
H
xOE
L
xOx
H
1
O
0
1
D
0
1
H
1
O
D
L
X
H
L
L
GND
45 GND
X
H
Z
1
O
2
44
43
42
41
40
1D
2
3
Note:
1
O
3
1D
1. H = High Voltage Level, X = Don't Care,
L = Low Voltage Level, Z = High Impedance
V
CC
V
CC
1
O
4
5
1D
4
1
O
1D
5
GND 10
39 GND
1
1
2
2
O
O
O
O
6
7
0
1
11
12
13
14
38
37
36
35
1
1
2
2
D
D
D
D
6
7
0
1
Pin Description
Description
Pin Name
xOE
3-State Output Enable Inputs (Active LOW)
GND 15
34 GND
2
O
O
2
3
16
17
18
19
20
33
32
31
30
29
2
D
2
3
xLE
Latch Enable Inputs (Active HIGH)
2
2D
xDx
Data Inputs
3-State Outputs
Ground
V
CC
V
CC
xOx
2O
4
5
2D
4
GND
2O
2D
5
V
Power
GND 21
28 GND
CC
2
O
O
6
7
22
23
27
26
25
2
2
2
D
6
7
2
D
2OE 24
LE
PS2069C
10/05/04
2
PI74LPT16373
3.3V 16-Bit Transparent Latch
Capacitance (TA = 25°C, f = 1 MHz)
(1)
Parameters
Description
Test Conditions
= 0V
Typ
4.5
Max.
Units
C
IN
Input Capacitance
Output Capacitance
V
V
6
8
IN
pF
COUT
= 0V
5.5
OUT
Note:
1. This parameter is determined by device characterization but is not production tested.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 2.7V to 3.6V)
(1)
(2)
Parameters
Description
Test Conditions
Min.
2.2
Typ
Max. Units
Input HIGH Voltage (Input pins)
Input HIGH Voltage (I/O pins)
—
—
5.5
V
V
Guaranteed Logic HIGH Level
IH
IL
2.0
5.5
V
Input LOW Voltage
(Input and I/O pins)
Guaranteed Logic LOW Level
–0.5
—
0.8
Input HIGH Current (Input pins)
Input HIGH Current (I/O pins)
Input LOW Current (Input pins)
Input LOW Current (I/O pins)
High Impedance Output Current
(3-State Output pins)
V
V
V
V
V
V
= 5.5V
—
—
—
—
—
—
—
—
—
±1
±1
V
V
V
V
V
V
= Max.
= Max.
= Max.
= Max.
= Max.
= Max.
IN
IN
IN
IN
CC
CC
CC
CC
CC
CC
I
I
IH
= V
CC
= GND
= GND
= 5.5V
—
±1
µA
±1
IL
—
I
I
—
±1
±1
OZH
OZL
OUT
OUT
= GND
—
V
Clamp Diode Voltage
VCC = Min., I = –18mA
–0.7
–1.2
V
IK
IN
V
= 3.3V, V = V or V ,
IN IH IL
CC
I
I
Output HIGH Current
Output LOW Current
–36
50
–60
90
–110
ODH
(3)
V = 1.5V
O
mA
V
= 3.3V, V = V or V ,
IN IH IL
CC
200
ODL
(3)
V = 1.5V
O
I
= –0.1 mA V -0.2
—
3.0
3.0
—
—
—
OL
OL
OL
OL
OL
OL
OL
CC
V
V
= Min.
CC
= V or V
I
I
I
I
I
I
= –3 mA
= –8 mA
= –24 mA
= 0.1 mA
= 16 mA
= 24 mA
2.4
IN
IH
IL
V
Output HIGH Voltage
Output LOW Voltage
OH
(5)
2.4
—
V
V
= 3.0V,
CC
= V or V
2.0
—
—
IN
IH
IL
V
—
0.2
0.4
0.5
–240
±100
—
V
V
= Min.
CC
VOL
= V or V
—
0.2
0.3
–85
—
IN
IH
IL
—
(4)
(3)
I
Short Circuit Current
–60
—
mA
µA
V
V
= Max. , V
= GND
OS
CC
CC
OUT
I
Power Down Disable
Input Hysteresis
= 0V, V or V
≤ 4.5V
OUT
OFF
IN
V
—
150
mV
H
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. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is guaranteed but not tested.
5.
V
= V – 0.6V at rated current.
OH CC
PS2069C
10/05/04
3
PI74LPT16373
3.3V 16-Bit Transparent Latch
Power Supply Characteristics
(1)
(2)
Parameters
Description
Min.
Max.
Units
Test Conditions
Typ
Quiescent Power Supply
Current
V
= GND or
IN
VCC
I
V
= Max.
0.1
10
CC
CC
µA
Quiescent Power Supply
Current TTL Inputs HIGH
V
IN
= V
CC
(3)
∆I
V
V
= Max.
= Max.,
500
75
CC
CC
– 0.6V
CC
Outputs Open
XOE = GND
xLE = Vcc
V
V
= V
µA/
MHz
IN
CC
(4)
I
50
Dynamic Power Supply
CCD
= GND
IN
One Bit Toggling
50% Duty Cycle
V
= Max.,
CC
V
– 0.6V
= V
CC
IN
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = GND
0.6
V
IN
= GND
XLE =
2.3
V
CC
One Bit Toggling
Total Power Supply
Current
I
C
mA
(6)
V
CC
= Max.,
V
= V
IN
CC
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
– 0.6V
= GND
2.1
XLE =
(5)
V
IN
4.7
V
CC
16 Bits Toggling
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V = 3.3V, +25°C ambient.
CC
3. Per TTL driven input; all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I =IQUIESCENT + IINPUTS + IDYNAMIC
C
I = I + ΔI D N + I
(fCP/2 + fINI)
C
CC
CC
H
T
CCD
I
= Quiescent Current (I
, I
and I
)
CC
CCL CCH
CCZ
ΔI = Power Supply Current for a TTL High Input
CC
D
= Duty Cycle for TTL Inputs High
H
N = Number of TTL Inputs at DH
T
I
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
CCD
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
= Number of Clock Inputs at fCP
N
CP
fI = Input Frequency
N = Number of Inputs at fI
I
All currents are in milliamps and all frequencies are in megahertz.
PS2069C
10/05/04
4
PI74LPT16373
3.3V 16-Bit Transparent Latch
(1)
Switching Characteristics over Operating Range
LPT16373
LPT16373A
Com.
LPT16373C
(2)
Parameters
Description
Conditions
Com.
Com.
Units
(3)
(3)
(3)
Min
Max
Min
Max
Min
Max
4.2
t
Propagation Delay
xDx to xOx
PLH
PHL
1.5
2.0
7.0
1.5
2.0
5.2
1.5
t
t
t
t
t
PLH
PHL
PZH
PZL
Propagation Delay
xLE to xOx
7.0
7.2
7.2
6.5
6.5
5.5
2.0
5.5
5.5
5.0
Output Enable Time
xOE to xOx
1.5
1.5
2.0
1.5
6.0
1.5
1.5
2.0
1.5
5.0
1.5
1.5
2.0
1.5
5.0
(4)
C = 50pF
R = 500Ω
L
L
t
t
Output Disable Time
xOE to xOx
PHZ
PLZ
ns
Setup Time HIGH
or LOW, xDx to xLE
t
t
SU
H
Hold Time HIGH
or LOW, xDx to xLE
(4)
xLE Pulse Width
t
t
W
HIGH
(5)
Output Skew
0.5
0.5
0.5
SK(O)
Notes:
1. Propagation Delays and Enable/Disable times are with V = 3.3V ±0.3V, normal range. For V = 2.7V, extended range, all Propagation
CC
CC
Delays and Enable/Disable times should be degraded by 20%.
2. See test circuit and waveforms.
3. Minimum limits are guaranteed but not tested on Propagation Delays.
4. This parameter is guaranteed but not production tested.
5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
PS2069C
10/05/04
5
PI74LPT16373
3.3V 16-Bit Transparent Latch
Packaging Mechanical: 48-pin TSSOP (L)
48
.236
.244
6.0
6.2
1
.488 12.4
.496 12.6
.047
1.20 Max
SEATING PLANE
0.09
0.20
.004
.008
0.45 .018
0.75 .030
.002
.006
0.05
0.15
.007
.010
.0197
BSC
.319
BSC
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
0.50
0.17
0.27
8.1
Packaging Mechanical: 48-pin SSOP (V)
48
.395
.420
10.03
10.67
.291
.299
7.39
7.59
Gauge Plane
.010
0.25
.02
.04
0.51
1.01
1
.620
.630
15.75
16.00
0.381
0.635
.015
.025
x 45˚
.008
0.20
Nom.
.110 2.79 Max
.008 0.20
.0135 0.34
.025 BSC
0.635
.008 0.20
.016 0.40
0-8˚
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
PS2069C
10/05/04
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PI74LPT16373
3.3V 16-Bit Transparent Latch
Ordering Information
Ordering Code
Package Code
Speed Grade
Description
PI74LPT16373A
A
A
V
A
V
Blank
48-pin 173 mil wide plastic TSSOP
PI74LPT16373AA
PI74LPT16373AV
PI74LPT16373CA
PI74LPT16373CV
A
A
C
C
48-pin 173 mil wide plastic TSSOP
48-pin 300 mil wide plastic SSOP
48-pin 173 mil wide plastic TSSOP
48-pin 300 mil wide plastic SSOP
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
PS2069C
10/05/04
7
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