Datasheet

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APPLICATION INFORMATION
1
2
3
6
5
4
V
CC1
V
CC1
V
CC2
V
CC2
SYSTEM-1
SYSTEM-2
PIN NAME FUNCTION DESCRIPTION
1
2
3
4
5
6
V
CCA
GND
A
B
DIR
V
CCB
V
CC1
GND
OUT
IN
DIR
V
CC2
SYSTEM-1 supply voltage (1.2 V to 3.36 V)
Device GND
Output level depends on V
CC1
voltage.
Input threshold value depends on V
CC2
voltage.
GND (low level) determines B-port to A-port direction.
SYSTEM-2 supply voltage (1.2 V to 3.6 V)
SN74AVCH1T45
SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES598D – JULY 2004 – REVISED JANUARY 2008
Figure 12 shows an example of the SN74AVCH1T45 being used in a unidirectional logic level-shifting
application.
Figure 12. Unidirectional Logic Level-Shifting Application
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Product Folder Link(s): SN74AVCH1T45