SN74LVC1T45_08 Datasheet, PDF (14/24 Pages) Texas Instruments – SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SN74LVC1T45
SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES515H – DECEMBER 2003 – REVISED JANUARY 2007
APPLICATION INFORMATION
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Figure 2 shows an example of the SN74LVC1T45 being used in a unidirectional logic level-shifting application.
V_CC1
V_CC1
V_CC2
V_CC2
1
6
2
5
3
4
SYSTEM-1
SYSTEM-2
PIN
NAME
FUNCTION
DESCRIPTION
1
V_CCA
2
GND
V_CC1
GND
SYSTEM-1 supply voltage (1.65 V to 5.5 V)
Device GND
3
A
4
B
5
DIR
OUT
IN
DIR
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.
6
V_CCB
V_CC2
SYSTEM-2 supply voltage (1.65 V to 5.5 V)
Figure 2. Unidirectional Logic Level-Shifting Application
14
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