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Direction-controlled voltage translators

SN74LVC4245A-EP

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Enhanced Product Octal Bus Transceiver And 3.3-V To 5-V Shifter With 3-State Outputs

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Data sheet

SN74LVC4245A-EP

ACTIVE
Data sheet Order now

Product details

Technology family LVC Bits (#) 8 High input voltage (min) (V) 2 High input voltage (max) (V) 5.5 Vout (min) (V) 2.7 Vout (max) (V) 5.5 Data rate (max) (Mbps) 200 IOH (max) (mA) -24 IOL (max) (mA) 24 Supply current (max) (µA) 130 Features Output enable Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating HiRel Enhanced Product Operating temperature range (°C) -40 to 85
Technology family LVC Bits (#) 8 High input voltage (min) (V) 2 High input voltage (max) (V) 5.5 Vout (min) (V) 2.7 Vout (max) (V) 5.5 Data rate (max) (Mbps) 200 IOH (max) (mA) -24 IOL (max) (mA) 24 Supply current (max) (µA) 130 Features Output enable Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating HiRel Enhanced Product Operating temperature range (°C) -40 to 85
TSSOP (PW) 24 49.92 mm² 7.8 x 6.4
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • Bidirectional Voltage Translator
  • 5.5 V on A Port and 2.7 V to 3.6 V on B Port
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • Bidirectional Voltage Translator
  • 5.5 V on A Port and 2.7 V to 3.6 V on B Port
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3 V, and A port has VCCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and vice versa.

The SN74LVC4245A is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.

The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin ’245 device without board re-layout. The designer uses the data paths for pins 2-11 and 14-23 of the SN74LVC4245A to align with the conventional ’245 pinout.

This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3 V, and A port has VCCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and vice versa.

The SN74LVC4245A is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.

The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin ’245 device without board re-layout. The designer uses the data paths for pins 2-11 and 14-23 of the SN74LVC4245A to align with the conventional ’245 pinout.
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Type Title Date
* Data sheet SN74LVC4245A-EP datasheet 01 Dec 2003
* VID SN74LVC4245A-EP VID V6204664 21 Jun 2016
* Radiation & reliability report SN74LVC4245AIPWREP Reliability Report 26 Aug 2011
Application note Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 02 Oct 2024
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12 Jul 2024
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
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Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
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Selection guide Logic Guide (Rev. AB) 12 Jun 2017
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Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Product overview Design Summary for WCSP Little Logic (Rev. B) 04 Nov 2004
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
Application note Use of the CMOS Unbuffered Inverter in Oscillator Circuits 06 Nov 2003
User guide LVC and LV Low-Voltage CMOS Logic Data Book (Rev. B) 18 Dec 2002
Application note Texas Instruments Little Logic Application Report 01 Nov 2002
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
More literature Standard Linear & Logic for PCs, Servers & Motherboards 13 Jun 2002
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Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 01 Dec 1997
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Application note LVC Characterization Information 01 Dec 1996
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Design guide Low-Voltage Logic (LVC) Designer's Guide 01 Sep 1996
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