參數(shù)資料
型號: SN74AVCH2T45YEPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: AVC SERIES, 2-BIT TRANSCEIVER, TRUE OUTPUT, PBGA8
封裝: DSBGA-8
文件頁數(shù): 8/22頁
文件大小: 365K
代理商: SN74AVCH2T45YEPR
www.ti.com
APPLICATION INFORMATION
VCC1
VCC2
SYSTEM-1
SYSTEM-2
VCC1
1
2
3
4
8
7
6
5
VCC2
SN74AVCH2T45
DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES582D – JULY 2004 – REVISED AUGUST 2005
Figure 12 is an example of the SN74AVCH2T45 circuit used in a bidirectional logic level-shifting application.
Figure 12. Bidirectional Logic Level-Shifting Application
PIN
NAME
FUNCTION
DESCRIPTION
1
VCCA
VCC1
SYSTEM-1 supply voltage (1.2 V to 3.6 V)
2
A1
OUT1
Output level depends on VCC1 voltage.
3
A2
OUT2
Output level depends on VCC1 voltage.
4
GND
Device GND
5
DIR
GND (low level) determines B-port to A-port direction.
6
B2
IN2
Input threshold value depends on VCC2 voltage.
7
B1
IN1
Input threshold value depends on VCC2 voltage.
8
VCCB
VCC2
SYSTEM-2 supply voltage (1.2 V to 3.6 V)
16
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