PI74LVTC16244VE [PERICOM]
3.3V 16-Bit Buffer/Line Driver with 3-State Outputs; 具有三态输出的3.3V 16位缓冲器/线路驱动器
| 型号： | PI74LVTC16244VE |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | 3.3V 16-Bit Buffer/Line Driver with 3-State Outputs |
| 文件： | 总8页 (文件大小：167K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
Product Features
Product Description
· Advanced low power CMOS design for 2.7V to 3.6V V
operation
Pericom Semiconductor’s PI74LVTC series of logic circuits are
produced using the Company’s advanced CMOS technology,
achieving industry leading speed.
CC
· Supports 5V input/output tolerance in mixed signal mode
operation
· Function compatible with LVT family of products
· Balanced ±24mA output drive
The PI74LVTC16244 is a non-inverting 16-bit buffer and line
driver designed for low-voltage 2.7V to 3.6V V operation, with
CC
the capability of interfacing to the 5V system environment. This
buffer/driver is designed specifically to improve both the perfor-
mance and density of 3-State memory address drivers, clock
drivers, and bus-oriented receivers and transmitters. The device
can be used as four 4-bit buffers, two 8-bit buffers, or one
16-bit buffer.
· Typical V
(Output Ground Bounce)
OLP
CC
<0.8V at V =3.3V, T =25°C
A
· I and Power Up/Down 3-State support live insertion
off
· Latch-up performance exceeds 200mA Per JESD78
· ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-B)
- 200V Machine Model (A115-A)
· Available Packages (Pb-free available):
- 48-pin 240-mil wide plastic TSSOP (A48)
- 48-pin 300-mil wide plastic SSOP (V48)
When V is between 0 to 1.5V during power up or power down,
CC
the device is in the high-impedance state. To ensure the high-
impedance state above 1.5V, 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.
· Industrial Temperature: -40°C to +85°C
The device fully supports live-insertion with its I and power-up/
off
down 3-state. The I circuitry disables the outputs when the
off
powerisoff, preventingthebackflowofdamagingcurrentthrough
the device. Power-up/down 3-state places the outputs in the high-
impedancestateduringpoweruporpowerdown,preventingdriver
conflict.
Logic Block Diagram
1
25
1OE
3OE
3A1
47
2
3
36
35
13
14
1A1
1Y1
1Y2
1Y3
1Y4
3Y1
3Y2
3Y3
3Y4
46
1A2
3A2
3A3
3A4
44
5
6
33
32
16
17
1A3
43
1A4
24
30
48
2OE
4OE
4A1
19
20
41
8
9
2A1
2Y1
2Y2
2Y3
2Y4
4Y1
4Y2
4Y3
4Y4
29
27
26
40
2A2
4A2
4A3
4A4
22
23
38
37
11
12
2A3
2A4
PS8652A
05/19/03
1
PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
Maximum Ratings
(Above which the useful life may be impaired.
For user guidelines, not tested.)
Product Pin Description
Pin Name
Description
Supply voltage range, V ............................ –0.5V to +6.5V
CC
Input voltage range, V (1) ............................... –0.5V to +6.5V
I
xOE
3-State Output Enable Inputs (Active LOW)
Voltage range applied to any output in the
high-impedance or power-off state, V (1) ..... –0.5V to +6.5V
xAx
Inputs
O
Voltage range applied to any output in the
xYx
3-State Outputs
Ground
active state, V (1), (2)............................... –0.5V to V +0.5V
O
CC
GND
VCC
Input clamp current, I (V <0) ................................... –50mA
IK
I
Output clamp current, I (V <0) .............................. –50mA
Power
OK
O
Continous Output Current I ........................................±50mA
O
Continous Current through each VCC or GND pin ............ ±100mA
Package thermal impedance, θ (3): package A ....... 104°C/W
Product Pin Configuration
JA
package V ... 94°C/W
Storage Temperature range, T .................... –65°C to 150°C
stg
1OE
1Y1
1Y2
GND
1Y3
1Y4
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
2OE
1A1
1A2
GND
1A3
1A4
Notes:
2
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 operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
3
4
5
6
7
V
V
CC
2A1
CC
1. Inputnegative-voltageandoutputvoltageratingsmaybeexceededifthe
input and output clamp current ratings are observed.
2. This value is limited to 6.5V maximum.
3. The package thermal impedance is calculated in accordance with JESD
51.
2Y1
8
9
2Y2
2A2
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
GND
48-Pin
A, V
2Y3
2Y4
3Y1
3Y2
GND
2A3
2A4
3A1
3A2
GND
Truth Table(4)
Inputs
Outputs
3Y3
3Y4
3A3
3A4
xOE
L
xAx
H
xYx
H
V
V
CC
CC
L
L
L
4Y1
4Y2
4A1
4A2
GND
4A3
4A4
3OE
H
X
Z
GND
4Y3
Notes:
4. H = High Signal Level
L = Low Signal Level
X = Don’t Care or Irrelevant
Z = High Impedance
4Y4
4OE
PS8652A
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PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
Recommended Operating Conditions(5)
Min.
2.7
Max.
Units
VCC Supply Voltage
Operating
3.6
VIH High-level Input Voltage
VIL Low-level Input Voltage
VI Input Voltage
VCC = 2.7V to 3.6V
VCC = 2.7V to 3.6V
2.0
0.8
5.5
VCC
5.5
–12
– 24
12
V
0
0
0
High or Low State
3-State
VO Output Voltage
VCC = 2.7V
IOH High-level output current
IOL Low-level output current
VCC = 3.0V to 3.6V
VCC = 2.7V
mA
VCC = 3.0V to 3.6V
24
∆t/∆v Input transition rise or fall rate
∆t/∆VCC Power-up ramp rate
10
ns/V
µs/V
°C
150
TA
Operating free-air temperature
– 40
+85
Notes:
5. All unused inputs must be held at VCC or GND to ensure proper device operation.
PS8652A
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PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
DC Electrical Characteristics (Over the Operating Range, T = –40°C to +85°C)
A
Parameters
Description
Test Conditions
Min.
Max.
Units
VIK
Clamp Diode Voltage
VCC = 2.7V
II = –18mA
–1.2V
VCC
VCC = 2.7V to 3.6V
VCC = 2.7V
IOH = –100µA
–0.2V
IOH = –12mA
IOH = –12mA
2.2
2.4
2.2
Out
p
ut High Voltage
ut Low Voltage
VOH
VCC = 3V
V
IOH = –24mA
VCC = 2.7V to 3.6V
VCC = 2.7V
IOL = 100µA
IOL = 12mA
0.2
0.4
0.4
0.55
±5
VOL
Outp
I
OL = 12mA
IOL = 24mA
VI = 0 to 5.5V
VI or VO = 0
VCC = 3V
II
Input
Leakage Current
VCC = 0V to 3.6V
VCC = 0V
V
Power Off Output Leakage
Current
IOFF
IOZ
V
to 5.5V
±5
±5
±5
±5
3-State Output Leakage
Current
VCC = 2.7V to 3.6V
VO = 0V to 5.5V,
VO = 0.5V to 5.5V,
OE = don't care
IOZPU
IOZPD
Power-Up 3-State Current
VCC = 0V to 1.5V
µA
VO = 0.5V to 5.5V,
OE = don't care
Power-Down 3-State
Current
VCC = 1.5V to 0V
VI = VCC or GND
Quiescent Power Supply
Current
ICC
VCC = 2.7V to 3.6V
IO = 0
100
100
3.6V ≤ VI ≤ 5.5V
One input at VCC - 0.6V(6)
∆ICC
Notes:
Increase in ICC
VCC = 2.7V to 3.6V
Other inputs at VCC or GND
6. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
PS8652A
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PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
Capacitance
Parameters
(7)
Description
Input Capacitance
Test Conditions
= 3.3V, V = V or GND
Typ.
3.7
7
Units
C
V
V
I
CC
I
CC
C
Output Capacitance
= 3.3V, V = V or GND
O CC
O
CC
pF
(8)
C
Power Dissipation Capacitance
V
CC
= 3.3V, V = 0V or V f =10 MHz
CC,
15
PD
I
Notes:
7. All typical values are measured at VCC = 3.3V, TA = 25°C.
8. CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current
sumption (ICCD) at no output loading and operating at 50% duty cycle, CPD is related to ICCD dynamic operating
expression: ICCD= (CPD)(VCC)(fIN)+(ICCstatic)
con-
current by the
Switching Characteristics Over Operating Range
V
= 3.3V ±0.3V
V
= 2.7V
CC
CC
To
(Outpu-
t)
From
(Input)
C = 50pF, R =
L
L
Parameters
Description
Units
C = 50pF, R = 500Ohm
L
L
500Ohm
(9)
Min.
1.0
Typ.
Max.
3.4
Min.
Max.
3.8
t
2.5
2.5
2.9
PLH
Propagation Delay
Output Enable Time
A
Y
Y
t
1.0
3.4
3.8
PHL
t
1.0
4.2
5.0
PZH
OE
t
1.0
1.0
1.0
3.0
2.5
2.4
4.2
4.0
3.9
5.0
4.7
4.3
PZL
ns
t
PHZ
Output Disable Time
Output to Output
OE
Y
t
PLZ
t
0.5
SK(O)
(10)
Skew
Notes:
9. All typical values are measured at VCC = 3.3V, TA = 25°C.
10. Skew between any two outputs, switching in the same direction.
PS8652A
05/19/03
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PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
PARAMETER MEASUREMENT INFORMATION
V
CC
= 2.7V and 3.3V ±0.3V
6V
S1
Open
GND
500Ω
From Output
Under Test
Test
/t
S1
t
Open
6V
GND
C
= 50pF
PLH PHL
L
500Ω
(See Note A)
t
/t
PLZ PZL
t
/t
PHZ PZH
Load Circuit
tW
2.7V
0V
1.5V
1.5V
Input
Voltage Waveforms
Pulse Duration
Output
Control
(Low Level
Enabling)
2.7V
1.5V
1.5V
0V
3V
t
t
PLZ
2.7V
0V
PZL
Output
Waveform 1
S1 at 6V
1.5V
tPLH
1.5V
tPHL
Input
1.5V
1.5V
V
OL
+0.3V
(see Note B)
V
OL
t
t
PZH
PHZ
V
OH
VOH
V
OH
-0.3V
1.5V
1.5V
Output
Waveform 2
S1 at GND
Output
VOL
0V
(see Note B)
Voltage Waveforms
Propagation Delay Times
Voltage Waveforms
Enable and Disable Times
Figure 1. Load Circuit and Voltage Waveforms
Notes:
A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input impulses are supplied by generators having the following characteristics: PRR £ 10 MHz, ZO = 50W, tR £ 2.5ns, tF £ 2.5ns.
D. The outputs are measured one at a time with one transition per measurement.
PS8652A
05/19/03
6
PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
Packaging Mechanical: 48-pin TSSOP (A)
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
PS8652A
05/19/03
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PI74LVTC16244
3.3V 16-Bit Buffer/Line Driver
with 3-State Outputs
Ordering Information
Ordering Code
Package Code
Package Type
PI74LVTC16244A
PI74LVTC16244AE
PI74LVTC16244V
PI74LVTC16244VE
A
A
V
V
48-pin, 240-mil wide plastic TSSOP (A)
Pb-free, 48-pin, 240-mil wide plastic TSSOP (A)
48-pin, 300-mil wide plastic SSOP (V)
Pb-free, 48-pin, 300-mil wide plastic SSOP (V)
Notes:
1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/mechanicals.php
2. X = Tape/Reel
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
PS8652A
05/19/03
8
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