Space 8-ch, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs and 3-state outputs

SN54HCT244-SP

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Product details

Technology Family HCT Supply voltage (Min) (V) 4.5 Supply voltage (Max) (V) 5.5 Number of channels (#) 8 IOL (Max) (mA) 6 ICC (Max) (uA) 80 IOH (Max) (mA) -6 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Very high speed (tpd 5-10ns) Rating Space
Technology Family HCT Supply voltage (Min) (V) 4.5 Supply voltage (Max) (V) 5.5 Number of channels (#) 8 IOL (Max) (mA) 6 ICC (Max) (uA) 80 IOH (Max) (mA) -6 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Very high speed (tpd 5-10ns) Rating Space
CDIP (J) 20 167 mm² 26.92 x 7.62 CFP (W) 20 91 mm² 13 x 7
  • Operating Voltage Range of 4.5 V to 5.5 V
  • High-Current Outputs Drive up to 15 LSTTL Loads
  • Low Power Consumption: 80-µA Maximum ICC
  • Typical tpd = 13 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current of 1 µA Maximum
  • Inputs Are TTL-Voltage Compatible
  • 3-State Outputs Drive Bus Lines and Buffer Memory Address Registers
  • Operating Voltage Range of 4.5 V to 5.5 V
  • High-Current Outputs Drive up to 15 LSTTL Loads
  • Low Power Consumption: 80-µA Maximum ICC
  • Typical tpd = 13 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current of 1 µA Maximum
  • Inputs Are TTL-Voltage Compatible
  • 3-State Outputs Drive Bus Lines and Buffer Memory Address Registers

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clockdrivers, and bus-oriented receivers and transmitters. The SNx4HCT244 devices are organized as two 4-bit buffers or drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clockdrivers, and bus-oriented receivers and transmitters. The SNx4HCT244 devices are organized as two 4-bit buffers or drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

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Technical documentation

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Type Title Date
* Data sheet SNx4HCT244 Octal Buffers and Line Drivers With 3-State Outputs datasheet (Rev. E) 17 Aug 2016
* SMD SN54HCT244-SP SMD 5962-85130 08 Jul 2016
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide TI Space Products (Rev. H) 27 Jan 2021
Application note Heavy Ion Orbital Environment Single-Event Effects Estimations 18 May 2020
Application note Single-Event Effects Confidence Interval Calculations 14 Jan 2020
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing 17 Jun 2019
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
User guide Signal Switch Data Book (Rev. A) 14 Nov 2003
More literature Logic Cross-Reference (Rev. A) 07 Oct 2003
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note SN54/74HCT CMOS Logic Family Applications and Restrictions 01 May 1996
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 01 Apr 1996

Design & development

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CDIP (J) 20 View options
CFP (W) 20 View options

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