74AVC1T45 Datasheet, PDF (1/17 Pages) NXP Semiconductors – Dual supply translating transceiver; 3-state

74AVC1T45
SINGLE BIT DUAL POWER SUPPLY TRANSLATING
TRANSCEIVER WITH 3 STATE OUTPUTS
Description
The 74AVC1T45 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 1.2V to
3.6V. 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 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 damaging backflow currents and providing power down
electrical isolation up to 3.6 V 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
4_B
SOT26
SOT363
(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
X1-DFN1010-6
X2-DFN0910-6
X2-DFN1410-6
Features
 Wide Supply Voltage Range:
 VCC(A): from 1.2V to 3.6V
 VCC(B): from 1.2V to 3.6V
 ± 12mA Output Drive at 3.3V
 High Noise Immunity - (100mV hysteresis typical)
 IOFF Supports Partial-Power-Down Mode Operation
 IOFF controlled by either VCC being at 0V
 Inputs accept up to 4.6V
 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 ROMs
 TVs, DVDs, DVRs, Set Top Boxes
 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) 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.
74AVC1T45
Document number: DS38131 Rev. 1 – 2
1 of 17
www.diodes.com
September 2016
© Diodes Incorporated