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SN74LVC1T45-EP

  

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TI
Texas Instruments
SN74LVC1T45-EP SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

DESCRIPTION/ORDERING INFORMATION
This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.
The SN74LVC1T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. The device transmits data from the A bus to the B bus when the B-port outputs are activated and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
The SN74LVC1T45 is designed so that the DIR input is powered by VCCA.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state.

FEATURES
• Fully Configurable Dual-Rail Design Allows
   Each Port to Operate Over the Full 1.65-V to
   5.5-V Power-Supply Range
• VCC Isolation Feature – If Either VCC Input Is at
   GND, Both Ports Are in the High-Impedance
   State
• DIR Input Circuit Referenced to VCCA
• Low Power Consumption, 4-µA Max ICC
• ±24-mA Output Drive at 3.3 V
• Ioff Supports Partial-Power-Down Mode
   Operation
• Max Data Rates
   – 420 Mbps (3.3-V to 5-V Translation)
   – 210 Mbps (Translate to 3.3 V)
   – 140 Mbps (Translate to 2.5 V)
   – 75 Mbps (Translate to 1.8 V)

• Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II
• ESD Protection Exceeds JESD 22
   – 2000-V Human-Body Model (A114-A)
   – 200-V Machine Model (A115-A)
   – 1000-V Charged-Device Model (C101)

SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Military (–55°C/125°C)
   Temperature Range(1)
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability


other parts : SN74LVC1T45MDCKREP  V62/09608-01XE  
SN74LVC1T45-EP PDF

1

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