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参数资料
| 型号： | NVT2010BQ |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 通用总线功能 |
| 英文描述： | Bidirectional voltage-level translator for open-drain and push-pull applications |
| 中文描述： | GTL TO TTL TRANSCEIVER, PQCC24 |
| 封装： | 3.50 X 5.50 M, 0.85 MM HEIGHT, LEAD FREE, PLASTIC, SOT815-1, VQFN-24 |
| 文件页数： | 6/26页 |
| 文件大小： | 459K |
| 代理商： | NVT2010BQ |
NVT2008_NVT2010
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 1 — 8 September 2010
6 of 26
NXP Semiconductors
NVT2008; NVT2010
Bidirectional voltage-level translator
6. Functional description
Refer to
Figure 1 “Logic diagram of NVT2008/10 (positive logic)”
.
6.1 Function table
Table 3.
H = HIGH level; L = LOW level.
Input EN
[1]
H
L
[1]
EN is controlled by the V
ref(B)
logic levels and should be at least 1 V higher than V
ref(A)
for best translator
operation.
7. Application design-in information
The NVT2008/10 can be used in level translation applications for interfacing devices or
systems operating at different interface voltages with one another. The NVT2008/10 is
ideal for use in applications where an open-drain driver is connected to the data I/Os. The
NVT2008/10 can also be used in applications where a push-pull driver is connected to the
data I/Os.
7.1 Enable and disable
The NVT20xx has an EN input that is used to disable the device by setting EN LOW,
which places all I/Os in the high-impedance state.
Function selection (example)
Function
An = Bn
disconnect
(1) The applied voltages at V
ref(A)
and V
pu(D)
should be such that V
ref(B)
is at least 1 V higher than
V
ref(A)
for best translator operation.
Fig 7.
Typical application circuit (switch always enabled)
002aae134
A1
A2
VREFA
GND
3
4
VREFB
1
6
5
B1
B2
8 EN
SW
SW
NVT2002
7
200 k
Ω
RPU
RPU
V
pu(D)
= 3.3 V
(1)
I
2
C-BUS
DEVICE
SDA
SCL
V
CC
GND
2
V
ref(A)
= 1.8 V
(1)
RPU
RPU
I
2
C-BUS
MASTER
SCL
SDA
V
CC
GND
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