NVT2010 datasheet(6/33 Pages) NXP

Part #	NVT2010

Description	Bidirectional voltage-level translator for open-drain and push-pull applications

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Manufacturer	NXP [NXP Semiconductors]

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NVT2008_NVT2010

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Product data sheet

Rev. 3 — 27 January 2014

6 of 33

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

[1]

EN is controlled by the Vref(B) logic levels and should be at least 1 V higher than Vref(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.

Table 4.

Function selection (example)

H = HIGH level; L = LOW level.

Input EN[1]

Function

HAn = Bn

L

disconnect

(1) The applied voltages at Vref(A) and Vpu(D) should be such that Vref(B) is at least 1 V higher than

Vref(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

8EN

SW

NVT2002

7

200 k

Ω

RPU

Vpu(D) = 3.3 V(1)

I2C-BUS

DEVICE

SCL

SDA

VCC

GND

2

Vref(A) = 1.8 V(1)

RPU

I2C-BUS

MASTER

SCL

SDA

VCC

GND

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