Nexperia

74AXP4T245

4-bit dual supply translating transceiver; 3-state

11. Application information

11.1. Unidirectional logic level-shifting application

The circuit given in Fig. 15 is an example of the 74AXP4T245 being used in an unidirectional logic

level-shifting application.

aaa-029977

74AXP4T245

VCC(A)

VCC1

VCC2

1

16

VCC(B)

VCC1

GND

system-1

8,9

2,3 DIR

OE

An 4,5,6,7

14,15

10,11,12,13 Bn

VCC2

system-2

Schematic given for one channel.

Fig. 15. Unidirectional logic level-shifting application

Table 16. Description unidirectional logic level-shifting application

Name

Function

Description

VCC(A)

VCC1

supply voltage of system-1 (0.9 V to 5.5 V)

GND

GND

device GND

A

OUT

output level depends on VCC1 voltage

B

IN

input threshold value depends on VCC2 voltage

DIR

DIR

the GND (LOW level) determines B port to A port direction

VCC(B)

VCC2

supply voltage of system-2 (0.9 V to 5.5 V)

OE

OE

The GND (LOW level) enables the output ports

74AXP4T245

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Nexperia B.V. 2020. All rights reserved

Product data sheet

Rev. 2 — 6 February 2020

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