Product details

Technology family ALS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Supply current (max) (µA) 25000 Input type Bipolar Output type 3-State Features Very high speed (tpd 5-10ns) Rating Military Operating temperature range (°C) -55 to 125
Technology family ALS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 8 IOL (max) (mA) 24 IOH (max) (mA) -15 Supply current (max) (µA) 25000 Input type Bipolar Output type 3-State Features Very high speed (tpd 5-10ns) Rating Military Operating temperature range (°C) -55 to 125
CDIP (J) 20 167.464 mm² 24.2 x 6.92 CFP (W) 20 90.5828 mm² 13.09 x 6.92 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • pnp Inputs Reduce dc Loading

  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • pnp Inputs Reduce dc Loading

These octal buffers/drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. When these devices are used with the ’ALS241, ’AS241A, ’ALS244, and ’AS244A devices, the circuit designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE)\ inputs, and complementary OE and OE\ inputs. These devices feature high fan-out and improved fan-in.

The -1 version of SN74ALS240A is identical to the standard version, except that the recommended maximum IOL for the -1 version is 48 mA. There is no -1 version of the SN54ALS240A.

These octal buffers/drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. When these devices are used with the ’ALS241, ’AS241A, ’ALS244, and ’AS244A devices, the circuit designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE)\ inputs, and complementary OE and OE\ inputs. These devices feature high fan-out and improved fan-in.

The -1 version of SN74ALS240A is identical to the standard version, except that the recommended maximum IOL for the -1 version is 48 mA. There is no -1 version of the SN54ALS240A.

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Technical documentation

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Type Title Date
* Data sheet Octal Buffers/Drivers With 3-State Outputs datasheet (Rev. E) 02 Aug 2002
* SMD SN54ALS240A SMD 5962-88591 21 Jun 2016
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
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
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 01 Aug 1997
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 Oct 1996
Application note Live Insertion 01 Oct 1996
Application note Advanced Schottky (ALS and AS) Logic Families 01 Aug 1995

Design & development

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Package Pins CAD symbols, footprints & 3D models
CDIP (J) 20 Ultra Librarian
CFP (W) 20 Ultra Librarian
LCCC (FK) 20 Ultra Librarian

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