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SN54AHCT125

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Military 4-ch, 4.5-V to 5.5-V buffers with TTL-compatible CMOS inputs and 3-state outputs

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Data sheet

SN54AHCT125

ACTIVE
Data sheet Order now

Product details

Technology family AHCT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 4 IOL (max) (mA) 8 Supply current (max) (µA) 20 IOH (max) (mA) -8 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Rating Military Operating temperature range (°C) -55 to 125
Technology family AHCT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 4 IOL (max) (mA) 8 Supply current (max) (µA) 20 IOH (max) (mA) -8 Input type TTL-Compatible CMOS Output type 3-State Features Balanced outputs, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) Rating Military Operating temperature range (°C) -55 to 125
CDIP (J) 14 130.4652 mm² 19.56 x 6.67 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Inputs are TTL-voltage compatible
  • Latch-up performance exceeds 250mA per JESD 17
  • Inputs are TTL-voltage compatible
  • Latch-up performance exceeds 250mA per JESD 17

The ’AHCT125 devices are quadruple bus buffer gates featuring independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is high. When OE is low, the respective gate passes the data from the A input to its Y output.

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

The ’AHCT125 devices are quadruple bus buffer gates featuring independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is high. When OE is low, the respective gate passes the data from the A input to its Y output.

For the high-impedance state during power up or power down, OE should 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 SNx4AHCT125 Quadruple Bus Buffer Gates With 3-State Outputs datasheet (Rev. R) PDF | HTML 14 Feb 2024
* SMD SN54AHCT125 SMD 5962-96869 21 Jun 2016
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
Product overview 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
Product overview 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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CDIP (J) 14 Ultra Librarian
LCCC (FK) 20 Ultra Librarian
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