PI74LPT16244AEX [PERICOM]
Bus Driver, LPT Series, 4-Func, 4-Bit, True Output, CMOS, PDSO48, 0.240 INCH, 1.10 MM HEIGHT, 0.50 MM PITCH, PLASTIC, TSSOP-48;型号: | PI74LPT16244AEX |
厂家: | PERICOM SEMICONDUCTOR CORPORATION |
描述: | Bus Driver, LPT Series, 4-Func, 4-Bit, True Output, CMOS, PDSO48, 0.240 INCH, 1.10 MM HEIGHT, 0.50 MM PITCH, PLASTIC, TSSOP-48 驱动 光电二极管 逻辑集成电路 |
文件: | 总6页 (文件大小:398K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
Features
Description
• Compatible with LCX and LVT families of products
Pericom Semiconductor’s PI74LPT16244 is a 16-bit buffer/line
driver designed for 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. This device is designed with three-state
controls to operate in a Quad-Nibble, Dual-Byte, or a single
16-bit word mode.
• 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 (24mA sink and source)
• Pin compatible with industry standard double-density pinouts
• Low ground bounce outputs
The PI74LPT16244 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 (Pb-free & Green available):
– 48-pin 240-mil wide thin plastic TSSOP (A)
– 48-pin 300-mil wide plastic SSOP (V)
Block Diagram
1OE
3OE
1A0
1Y0
3A0
3Y0
1
1
3
3
1A1
1Y1
3A1
3Y1
1A2
1Y2
3A2
3Y2
1
1
3
3
1A3
1Y3
3A3
3Y3
2OE
2A0
4OE
4A0
2Y0
4Y0
2
2
4
4
2A1
2A2
2A3
2Y1
4A1
4A2
4A3
4Y1
2Y2
4Y2
2
2
4
4
2Y3
4Y3
08-0291
PS2067G
11/10/08
1
PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Storage Temperature ............................................................–55°C to +125°C
Ambient Temperature with Power Applied ...........................–40°C to +85°C
Stresses greater than those listed under MAXIMUM RAT-
INGS 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 operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for ex-
tended 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
Product Pin Configuration
Truth Table
(1)
(1)
Inputs
Outputs
1OE
1Y0
1Y1
GND
1Y2
1Y3
VCC
2Y0
2Y1
GND
2Y2
2Y3
3Y0
3Y1
GND
3Y2
3Y3
VCC
4Y0
4Y1
GND
4Y2
4Y3
4OE
2OE
1A0
1A1
GND
1A2
1A3
VCC
2A0
2A1
GND
2A2
2A3
3A0
3A1
GND
3A2
3A3
VCC
4A0
4A1
GND
4A2
4A3
3OE
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
XOE
XAX
L
xYx
L
2
L
3
L
H
H
H
4
5
X
Z
6
Notes:
7
1. H = High Voltage Level, X = Don't Care,
8
L = Low Voltage Level, Z = High Impedance
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Product Pin Description
Pin Name
Description
xOE
3-State Output Enable Inputs (Active LOW)
xAx
Inputs
xYx
3-State Outputs
Ground
GND
V
Power
CC
08-0291
PS2067G
11/10/08
2
PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
Capacitance (T = 25°C, f = 1 MHz)
A
(1)
Parameters
Description
Test Conditions
= 0V
Typ
3
Max.
Units
C
C
Input Capacitance
Output Capacitance
V
V
6
8
IN
IN
pF
= 0V
3
OUT
OUT
Notes:
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)
Input LOW Voltage
5.5
5.5
V
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
IH
IL
2.0
V
V
–0.5
0.8
(Input and I/O pins)
Input HIGH Current (Input pins) VCC = Max.
Input HIGH Current (I/O pins) VCC = Max.
Input LOW Current (Input pins) VCC = Max.
Input LOW Current (I/O pins) VCC = Max.
High Impedance Output Current VCC = Max.
VIN = 5.5V
VIN = VCC
±1
±1
I
I
IH
VIN = GND
VIN = GND
VOUT = 5.5V
VOUT = GND
±1
μA
IL
±1
I
I
±1
OZH
(3-State Output pins)
Clamp Diode Voltage
VCC = Max.
±1
OZL
V
VCC = Min., IIN = –18 mA
–0.7
–1.2
V
IK
VCC = 3.3V, VIN = VIH or VIL, VO =
1.5V
I
I
Output HIGH Current
Output LOW Current
–36
50
–60
90
–110
200
OHD
(3)
mA
VCC = 3.3V, VIN = VIH or VIL, VO =
ODL
(3)
1.5V
IOH = –0.1 mA
Vcc-0.2
2.4
VCC = Min.
VIN = VIH or VIL
IOH = –3 mA
IOH = –8 mA
IOH = –24 mA
IOL = 0.1 mA
IOL = 16 mA
IOL = 24 mA
3.0
3.0
V
V
Output HIGH Voltage
OH
(5)
VCC = 3.0V,
2.4
VIN = VIH or VIL
2.0
V
0.2
0.4
VCC = Min.
VIN = VIH or VIL
Output LOW Voltage
0.2
0.3
OL
0.5
(4)
(3)
I
I
Short Circuit Current
Power Down Disable
VCC = Max. , VOUT = GND
–60
–85
–240
±100
mA
OS
VCC = 0V, VIN or VOUT ≤ 4.5V
μA
OFF
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 and maximum loading.
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
OH = VCC – 0.6V at rated current.
08-0291
PS2067G
11/10/08
3
PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
Power Supply Characteristics
(1)
(2)
Parameters
Description
Min.
Max.
Units
Test Conditions
Typ
ICC
Quiescent Power Supply Current VCC = Max.
VIN = GND or VCC
0.1
10
μA
Quiescent Power Supply Current
VCC = Max.
(3)
ΔICC
VIN = VCC – 0.6V
500
75
TTL Inputs HIGH
VCC = Max.,
Outputs Open
XOE = GND
VIN = VCC
VIN = GND
μA/
MHz
(4)
ICCD
50
Dynamic Power Supply
One Bit Toggling
50% Duty Cycle
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
XOE = GND
VIN = VCC – 0.6V
VIN = GND
0.5
0.8
One Bit Toggling
Total Power Supply
Current
IC
mA
(6)
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
VIN = VCC – 0.6V
VIN = GND
(5)
2.0
3.3
16 Bits Toggling
Notes:
1. ForMax. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 3.3V, +25°C ambient.
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.
IC =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ΔICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
ΔICC = Power Supply Current for a TTL High Input
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
NCP = Number of Clock Inputs at fCP
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
08-0291
PS2067G
11/10/08
4
PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
(1)
Switching Characteristics over Operating Range
LPT16244
LPT16244A
LPT16244C
Parameters
Description
Conditions
Com.
Com.
Com.
Units
(2)
(2)
(2)
Min
Max.
Min
Max. Min
Max.
t
t
Propagation Delay
XAX to XYX
PLH
1.5
1.5
1.5
5.2
1.5
4.8
6.2
1.5
1.5
1.5
4.1
PHL
t
t
Output Enable Time
xOE to xYx
PZH
7.0
1.5
1.5
5.8
C = 50 pF
R = 500Ω
L
ns
L
PZL
(3)
t
t
Output Disable Time
xOE to xYx
PHZ
PLZ
7.0
0.5
5.6
0.5
5.2
0.5
(4)
t
(o)
Output Skew
SK
Notes:
1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all Propagation Delays
and Enable/Disable times should be degraded by 20%.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
4. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
Packaging Mechanical: 48-pin TSSOP (A)
DOCUMENT CONTROL NO.
PD - 1501
48
REVISION: G
DATE: 03/09/05
.236
.244
6.0
6.2
See Note 4
1
.488 12.4
.496 12.6
See Note 3
.047
1.20 Max
SEATING PLANE
0.09
0.20
.004
.008
0.45 .018
0.75 .030
.002
.007
.010
.0197
BSC
.006
0.05
0.15
.319
BSC
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
0.50
0.17
0.27
8.1
Note:
1. Controlling dimensions in millimeters.
2. Ref: JEDEC MO-153F/ED
3. Dimension does not include mold flash, protrusions or gate burrs. Mold flash, protru-
sions and gate burrs shall not exceed 0.15mm per side.
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
4. Dimension does not include interlead flash or protrusion. Interlead flash or protrusion
shall not exceed 0.25mm per side.
DESCRIPTION: 48-Pin 240-Mil Wide TSSOP
PACKAGE CODE: A
08-0291
PS2067G
11/10/08
5
PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
Packaging Mechanical: 48-pin SSOP (V)
DOCUMENT CONTROL NO.
PD - 1401
48
REVISION: E
DATE: 03/09/05
.395
.420
10.03
10.67
.291
.299
7.39
7.59
Gauge Plane
.010
0.25
.02
.04
0.51
1.01
1
0.381
0.635
.015
.025
x 45˚
.008
0.20
Nom.
.620
.630
15.75
16.00
.110 2.79 Max
.008 0.20
.016 0.40
0-8˚
.008 0.20
.0135 0.34
.025 BSC
0.635
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
Notes:
1) Controlling dimensions in inches.
2) Ref: JEDEC MO-118B/AA
DESCRIPTION: 48-Pin, 300-Mil Wide, SSOP
PACKAGE CODE: V
Ordering Information
Ordering Code
Package Code
Description
PI74LPT16244V
V
V
A
A
A
48-pin 300 mil wide plastic SSOP
PI74LPT16244CV
PI74LPT16244AE
PI74LPT16244AAE
PI74LPT16244CAE
48-pin 300 mil wide plastic SSOP
Pb-free & Green, 48-pin 240 mil wide plastic TSSOP
Pb-free & Green, 48-pin 240 mil wide plastic TSSOP
Pb-free & Green, 48-pin 240 mil wide plastic TSSOP
Notes:
•
•
Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
E = Pb-free & Green
• Adding an X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
08-0291
PS2067G
11/10/08
6
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