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74LVC1T45FX4

更新时间： 2024-11-27 12:27:51
品牌 Logo 应用领域
美台 - DIODES 输出元件
页数 文件大小 规格书
14页 376K
描述
SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER WITH 3 STATE OUTPUTS

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74LVC1T45FX4 数据手册

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74LVC1T45  
SINGLE BIT DUAL POWER SUPPLY TRANSLATING  
TRANSCEIVER WITH 3 STATE OUTPUTS  
Description  
Pin Assignments  
The 74LVC1T45 is a single bit, dual supply transceiver with 3-state  
outputs suitable for transmitting a single logic bit across different  
voltage domains. The A input/output pin is designed to track VCCA  
while the B input/output tracks VCCB. This arrangement allows for  
universal low-voltage translation between any voltages from 1.65V to  
5.5V. The Direction pin (DIR) controls the direction of the transceiver  
and in a logic voltage related to VCCA. When a high logic level is  
applied to DIR the A pin becomes an input and the B pin becomes the  
output. Conversely the roles of A and B are reversed when DIR is  
asserted low.  
(Top View)  
(Top View)  
Vcc(A)  
Vcc(B)  
6
5
4
1
2
3
Vcc(A)  
GND  
A
6
5
4
1
2
3
Vcc(B)  
DIR  
B
GND  
A
DIR  
B
X2-DFN1410-6  
SOT26 SOT363 SOT563  
(
Bottom View)  
The 3-state feature occurs when either of the power supply voltages  
are zero. This is also an Ioff feature and allows for the output to  
remain in a high impedance state with both power supplies at 0V  
preventing and damaging backflow currents and providing power  
down electrical isolation up to 5.5V as not to interfere with any logic  
activity on pin A or B.  
(Top View)  
A
4
B
3
2
1
1
2
3
6
5
4
Vcc(A)  
GND  
A
Vcc(B)  
DIR  
B
DIR  
Vcc(B)  
GND  
5
6
Vcc(A)  
X2-DFN1010-6  
X2-DFN1409-6  
Chip Scale  
Alternative  
Applications  
Features  
•
Voltage Level Translation  
•
Wide Supply Voltage Range:  
Well suited to join logic types operating at different voltages  
Power Down Signal Isolation  
.
.
VCC(A): from 1.65V to 5.5V  
VCC(B): from 1.65V to 5.5V  
•
If either voltage domain is turned off the signal is isolated and  
there is no loading on signal lines  
•
•
•
•
•
•
•
± 24mA Output Drive at 3.3V  
CMOS low power consumption 16µA maximum ICC  
High Noise Immunity -- (100mV hysteresis typical)  
•
Wide array of products such as:  
.
.
.
.
.
.
.
Cell Phones, Tablets, E-Readers  
PCs, notebooks, netbooks, ultrabooks  
Networking, routers, gateways  
I
OFF Supports Partial-Power-Down Mode Operation  
IOFF controlled by either VCC being at 0 V  
Inputs accept up to 5.5V  
Computer peripherals, hard drives, CD/DVD ROM  
TV, DVD, DVR, set top box  
ESD Protection Exceeds JESD 22  
.
.
.
200-V Machine Model (A115-A)  
Personal Navigation / GPS  
2000-V Human Body Model (A114-A)  
1000 V Charged Device Model ( C101)  
MP3 players ,Cameras, Video Recorders  
•
•
Latch-Up Exceeds 100mA per JESD 78, Class II  
X2-DFN1409-6 package designed as a direct replacement for  
chip scale packaging.  
•
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  
Halogen and Antimony Free. “Green” Device (Note 3)  
•
Notes:  
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.  
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"  
and Lead-free.  
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and  
<1000ppm antimony compounds.  
Click for Ordering Information  
1 of 14  
www.diodes.com  
June 2013  
© Diodes Incorporated  
74LVC1T45  
Document number: DS35804 Rev. 2 - 2  
1234567...14

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