Nexperia

74AVC2T45

Dual-bit, dual-supply voltage level translator/transceiver; 3-state

6.2. Pin description

Table 3. Pin description

Symbol

Pin

Description

VCC(A)

1

supply voltage A (referenced to pins 1A, 2A and DIR)

1A

2

data input or output

2A

3

data input or output

GND

4

ground (0 V)

DIR

5

direction control

2B

6

data input or output

1B

7

data input or output

VCC(B)

8

supply voltage B (referenced to pins 1B and 2B)

7. Functional description

Table 4. Function table

H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.

Supply voltage

Input

Input/output [1]

VCC(A), VCC(B)

DIR [2]

nA

nB

0.8 V to 3.6 V

L

nA = nB

input

0.8 V to 3.6 V

H

input

nB = nA

GND [3]

X

Z

Z

[1] The input circuit of the data I/O is always active.

[2] The DIR input circuit is referenced to VCC(A).

[3] If at least one of VCC(A) or VCC(B) is at GND level, the device goes into Suspend mode.

74AVC2T45

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Product data sheet

Rev. 10 — 4 November 2021

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