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74LVC1T45Z6 Datasheet

SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER

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74LVC1T45
SINGLE BIT DUAL POWER SUPPLY TRANSLATING
TRANSCEIVER WITH 3 STATE OUTPUTS
Description
The 74LVC1T45 is a single-bit, dual-supply transceiver with tri-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.
The tri-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,
which prevents and damages backflow currents and provides power-
down electrical isolation up to 5.5V as not to interfere with any logic
activity on pin A or B.
Pin Assignments
(Top View)
Vcc(A) 1
6 Vcc(B)
GND 2
5 DIR
A3
4B
SOT26 SOT363 SOT563
(Top View)
Vcc(A) 1 6 Vcc(B)
GND 2 5 DIR
A 3 4B
X2-DFN1410-6
(Bottom View)
A3
4B
GND 2
5 DIR
Vcc(A) 1
6 Vcc(B)
X2-DFN1409-6
Chip Scale
Alternative
(Top View)
Vcc(A) 1
GND 2
A3
6 Vcc(B)
5 DIR
4B
X2-DFN1010-6
Features
Wide Supply Voltage Range:
VCC(A): from 1.65V to 5.5V
VCC(B): from 1.65V to 5.5V
± 24mA Output Drive at 3.3V
CMOS Low Power Consumption 16µA Maximum ICC
High Noise Immunity(100mV Hysteresis Typical)
IOFF Supports Partial-Power-Down Mode Operation
IOFF Controlled by Either VCC Being at 0 V
Inputs Accept up to 5.5V
ESD Protection Exceeds JESD 22
200-V Machine Model (A115)
2000-V Human Body Model (A114)
1000 V Charged Device Model ( C101)
Latch-up Exceeds 100mA per JESD 78, Class I
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)
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
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ 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. 4 - 2
1 of 15
www.diodes.com
October 2018
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

74LVC1T45Z6 Datasheet

SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER

No Preview Available !

Pin Descriptions
Pin Name
VCC(A)
GND
A
B
DIR
VCC(B)
Logic Diagram
Pin
Function
1
Supply for I/O Pin A; Reference for DIR
2
Ground
3
Data Input/Output
4
Data Input/Output
5
Direction Control
6
Supply for I/O Pin B
DIR 5
74LVC1T45
A3
VCC(A)
VCC(B)
4
B
Function Tables
Input
DIR (Direction Pin)
L
H
Inputs
A
B
DIR
Note 4
L
L
Note 4
H
L
L
Note 4
H
H
Note 4
H
Note:
4. Pin condition not applicable as defined by DIR.
A
L
H
Note 4
Note 4
Operation
B Data to A Output
A Data to B Output
Outputs
B
Note 4
Note 4
L
H
Absolute Maximum Ratings (Note 5) (@TA = +25°C, unless otherwise specified.)
Symbol
ESD HBM
ESD CDM
ESD MM
Parameter
Human Body Model ESD Protection
Charged Device Model ESD Protection
Machine Model ESD Protection
Rating
Unit
2
KV
1
KV
200
V
VCC(A), VCC(B) Supply Voltage Range
-0.5 to +6.5
V
VI
Input Voltage Range
-0.5 to +6.5
V
VO
Voltage Applied to Output in High Impedance or IOFF State
-0.5 to +6.5
V
A Pin
VO
Voltage Applied to Output in High or Low State
B Pin
-0.3 to VCC(A) +0.5
-0.3 to VCC(B) +0.5
V
V
IIK
Input Clamp Current VI<0
-50
mA
IOK
Output Clamp Current
-50
mA
IO
Continuous Output Current
±50
mA
Continuous Current Through Vcc or GND
±100
mA
TJ
Operating Junction Temperature
-40 to +150
°C
TSTG
Storage Temperature
-65 to +150
°C
Note:
5. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be
within recommend values.
74LVC1T45
Document number: DS35804 Rev. 4 - 2
2 of 15
www.diodes.com
October 2018
© Diodes Incorporated


Part Number 74LVC1T45Z6
Description SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER
Maker Diodes
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