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参数资料
| 型号： | SNJ54LVT16244BWD |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | 3.3-V ABT 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 的3.3V ABT生根粉16位缓冲器/ 3司机态输出 |
| 文件页数： | 2/20页 |
| 文件大小： | 499K |
| 代理商： | SNJ54LVT16244BWD |
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
The 'LVT16244B devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) V
CC
operation, but
with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four
4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical
active-low output-enable (OE) inputs.
GQL OR ZQL PACKAGE
(TOP VIEW)
J
K
H
G
F
E
D
C
B
A
2
1
3 4
6
5
GRD OR ZRD PACKAGE
(TOP VIEW)
2
1
3
J
H
G
F
E
D
C
B
A
4
6
5
SN54LVT16244B
,
SN74LVT16244B
3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS716E–MARCH 2000–REVISED DECEMBER 2006
When V
is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE should be tied to V
CC
through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
These devices are fully specified for hot-insertion applications using I
and power-up 3-state. The I
circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
TERMINAL ASSIGNMENTS
(1)
(56-Ball GQL/ZQL Package)
1
2
3
4
5
6
A
B
C
D
E
F
G
H
J
K
1OE
1Y2
1Y4
2Y2
2Y4
3Y1
3Y3
4Y1
4Y3
4OE
NC
1Y1
1Y3
2Y1
2Y3
3Y2
3Y4
4Y2
4Y4
NC
NC
GND
V
CC
GND
NC
GND
V
CC
GND
NC
1A1
1A3
2A1
2A3
3A2
3A4
4A2
4A4
NC
2OE
1A2
1A4
2A2
2A4
3A1
3A3
4A1
4A3
3OE
GND
V
CC
GND
NC
GND
V
CC
GND
NC
xxxxxx
xxxxxx
xxxxxx
xxxxxx
(1)
NC – No internal connection
TERMINAL ASSIGNMENTS
(1)
(54-Ball GRD/ZRD Package)
1
2
3
4
5
6
A
B
C
D
E
F
G
H
J
1Y1
1Y3
2Y1
2Y3
3Y1
3Y3
4Y1
4Y3
4Y4
NC
1Y2
1Y4
2Y2
2Y4
3Y2
3Y4
4Y2
NC
1OE
NC
V
CC
GND
GND
GND
V
CC
NC
4OE
2OE
NC
V
CC
GND
GND
GND
V
CC
NC
3OE
NC
1A2
1A4
2A2
2A4
3A2
3A4
4A2
NC
1A1
1A3
2A1
2A3
3A1
3A3
4A1
4A3
4A4
(1)
NC – No internal connection
2
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