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SN74AHC245-Q1

ACTIVE

Automotive octal bus transceivers with tri-state outputs

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Data sheet

SN74AHC245-Q1

ACTIVE
Data sheet Order now

Product details

Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Number of channels 8 IOL (max) (mA) 8 IOH (max) (mA) -8 Input type LVTTL/CMOS Output type CMOS Features Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AHC Rating Automotive Operating temperature range (°C) -40 to 125
Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Number of channels 8 IOL (max) (mA) 8 IOH (max) (mA) -8 Input type LVTTL/CMOS Output type CMOS Features Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Technology family AHC Rating Automotive Operating temperature range (°C) -40 to 125
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4 VQFN (RKS) 20 11.25 mm² 4.5 x 2.5
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, T A
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classifcation Level C6
  • Operating range 2 V to 5.5 V V CC
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, T A
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classifcation Level C6
  • Operating range 2 V to 5.5 V V CC
  • Latch-Up Performance Exceeds 250 mA Per JESD 17

The SN74AHC245-Q1 octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. This device allows data transmission 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 that the buses effectively are isolated.

To ensure the high-impedance state during power up or power down, OE should be tied to V CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN74AHC245-Q1 octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. This device allows data transmission 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 that the buses effectively are isolated.

To ensure the high-impedance state during power up or power down, OE should be tied to V CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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Technical documentation

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Type Title Date
* Data sheet SN74AHC245-Q1 Automotive Octal Bus Transceivers With 3-State Outputs datasheet (Rev. D) PDF | HTML 29 Jun 2023
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Little Logic Guide 2018 (Rev. G) 06 Jul 2018
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note How to Select Little Logic (Rev. A) 26 Jul 2016
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
More literature 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
Application note Advanced High-Speed CMOS (AHC) Logic Family (Rev. C) 02 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
Design guide AHC/AHCT Designer's Guide February 2000 (Rev. D) 24 Feb 2000
Application note Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A) 08 Sep 1999
More literature Military Advanced High-Speed CMOS Logic (AHC/AHCT) (Rev. C) 01 Apr 1998
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 01 Dec 1997
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 01 Aug 1997
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note Live Insertion 01 Oct 1996

Design & development

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Evaluation board

14-24-LOGIC-EVM — Generic Logic EVM Supporting 14 through 24 Pin PW, DB, D, DW, NS, DYY, and DGV Packages

This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, DYY or DGV package in a 14 to 24 pin count.

User guide: PDF | HTML
Not available on TI.com
Evaluation board

14-24-NL-LOGIC-EVM — Generic 14 through 24 pin non-leaded package evaluation module

Flexible EVM designed to support any logic or translation device that has a BQA, BQB, RGY (14-24 pin), RSV, RJW, or RHL package.
User guide: PDF | HTML
Not available on TI.com
Package Pins Download
TSSOP (PW) 20 View options
VQFN (RKS) 20 View options
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