Diodes 74LVC1T45 User Manual
74LVC1T45
outputs suitable for transmitting a single logic bit across different
. This arrangement allows for
. When a high logic level is
output. Conversely the roles of A and B are reversed when DIR is
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
245
6
3
1
(
Top View
)
X2-DFN1410-6
A
GND
B
DIR
Vcc(A) Vcc(B)
X2-DFN1409-6
Chip Scale
Alternative
A
GND
B
DIR
Vcc(A)
Vcc(B)
1 6
5
4
3
2
(
Bottom View
)
(
Top View
)
X2-DFN1010-6
A
GND
B
1
2
3 4
5
6
DIR
Vcc(A) Vcc(B)
B
SOT26 SOT363 SOT563
(Top View)
GND
A
43
2
1
6
Vcc(A)
5
Vcc(B)
DIR
Description
The 74LVC1T45 is a single bit, dual supply transceiver with 3-state
SINGLE BIT DUAL POWER SUPPLY TRANSLATING
TRANSCEIVER WITH 3 STATE OUTPUTS
Pin Assignments
voltage domains. The A input/output pin is designed to track V
while the B input/output tracks V
universal low-voltage translation bet ween any voltages from 1.65V to
5.5V. T he Direction pin (DIR) controls the direction of t he transceiver
and in a logic voltage related to V
applied to DIR the A pin becomes an input and the B pin becomes the
asserted low.
The 3-state feature occurs when either of t he power supply voltages
down electrical isolation up to 5.5V as not to interfere with any logic
activity on pin A or B.
CCB
CCA
Features
• Wide Supply Voltage Range:
V
V
• ± 24mA Output Drive at 3.3V
• CMOS low power consumption 16µA max imum I
• High Noise Immunity -- (100mV hysteresis typical)
• I
• I
• Inputs accept up to 5.5V
• ESD Protection Exceeds JESD 22
200-V Machine Model (A115-A)
2000-V Human Body Model (A114-A)
1000 V Charged Device Model ( C101)
• 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.
74LVC1T45
Document number: DS35804 Rev. 2 - 2
(A): from 1.65V to 5.5V
CC
(B): from 1.65V to 5.5V
CC
Supports Partial-Power-Down Mode Operation
OFF
controlled by either VCC being at 0 V
OFF
Click for Ordering Information
CC
CCA
www.diodes.com
Applications
• Voltage Level Translation
Well suited to join logic types operating at different voltages
• Power Down Signal Isolation
If either voltage domain is turned off the signal is isolated and
there is no loading on signal lines
• Wide array of products such as:
Cell Phones, Tablets, E-Readers
PCs, notebooks, netbooks, ultrabooks
Networking, routers, gateways
Computer peripherals, hard drives, CD/DVD ROM
TV, DVD, DVR, set top box
Personal Navigation / GPS
MP3 players ,Cameras, Video Recorders
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June 2013
© Diodes Incorporated
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