SN74AHCT244-Q1

ACTIVE

Product details

Technology Family AHCT Supply voltage (Min) (V) 4.5 Supply voltage (Max) (V) 5.5 Number of channels (#) 8 IOL (Max) (mA) 8 ICC (Max) (uA) 40 IOH (Max) (mA) -8 Input type TTL-Compatible CMOS Output type Push-Pull Features Balanced outputs, Very high speed (tpd 5-10ns), Over-voltage tolerant inputs Rating Automotive
Technology Family AHCT Supply voltage (Min) (V) 4.5 Supply voltage (Max) (V) 5.5 Number of channels (#) 8 IOL (Max) (mA) 8 ICC (Max) (uA) 40 IOH (Max) (mA) -8 Input type TTL-Compatible CMOS Output type Push-Pull Features Balanced outputs, Very high speed (tpd 5-10ns), Over-voltage tolerant inputs Rating Automotive
SOIC (DW) 20 132 mm² 12.8 x 10.3 TSSOP (PW) 20 29 mm² 4.4 x 6.5
  • Qualified for Automotive Applications
  • ESD Protection Exceeds 1000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • EPIC™ (Enhanced-Performance Implanted CMOS) Process
  • Inputs Are TTL-Voltage Compatible

EPIC is a trademark of Texas Instruments.

  • Qualified for Automotive Applications
  • ESD Protection Exceeds 1000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • EPIC™ (Enhanced-Performance Implanted CMOS) Process
  • Inputs Are TTL-Voltage Compatible

EPIC is a trademark of Texas Instruments.

This octal buffer/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The SN74AHCT244 is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

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

This octal buffer/driver is designed specifically to improve both the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The SN74AHCT244 is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE shall be tied to VCC 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 Octal Buffer/Driver With 3-State Outputs datasheet (Rev. C) 15 Apr 2008
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
More literature Automotive Logic Devices Brochure 27 Aug 2014
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
More literature Logic Cross-Reference (Rev. A) 07 Oct 2003
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
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

For additional terms or required resources, click any title below to view the detail page where available.

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.

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Simulation model

SN74AHCT244 Behavioral SPICE Model SN74AHCT244 Behavioral SPICE Model

Package Pins Download
SOIC (DW) 20 View options
TSSOP (PW) 20 View options

Ordering & quality

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