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74LVC1T45 Datasheet

Part NameDescriptionManufacturer
74LVC1T45 SINGLE BIT DUAL POWER SUPPLY TRANSLATING TRANSCEIVER WITH 3 STATE OUTPUTS Diodes
Diodes Incorporated. Diodes
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Description
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.
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.

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-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)

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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