Product details

Technology family LS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 2 Inputs per channel 4 IOL (max) (mA) 8 IOH (max) (mA) -0.4 Input type Bipolar Output type Push-Pull Features High speed (tpd 10- 50ns) Data rate (max) (Mbps) 35 Rating Military Operating temperature range (°C) -55 to 125
Technology family LS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 2 Inputs per channel 4 IOL (max) (mA) 8 IOH (max) (mA) -0.4 Input type Bipolar Output type Push-Pull Features High speed (tpd 10- 50ns) Data rate (max) (Mbps) 35 Rating Military Operating temperature range (°C) -55 to 125
CDIP (J) 14 130.4652 mm² 19.56 x 6.67 CFP (W) 14 58.023 mm² 9.21 x 6.3 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 

  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 

These devices contain two independent 4-input AND gates.

The SN54LS21 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS21 is characterized for operation from 0°C to 70°C.

 

These devices contain two independent 4-input AND gates.

The SN54LS21 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LS21 is characterized for operation from 0°C to 70°C.

 

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Technical documentation

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Type Title Date
* Data sheet Dual 4-Input Positive-AND Gates datasheet 01 Mar 1988
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 Designing With Logic (Rev. C) 01 Jun 1997
Application note Designing with the SN54/74LS123 (Rev. A) 01 Mar 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 Oct 1996
Application note Live Insertion 01 Oct 1996

Design & development

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Package Pins CAD symbols, footprints & 3D models
CDIP (J) 14 Ultra Librarian
CFP (W) 14 Ultra Librarian
LCCC (FK) 20 Ultra Librarian

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