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CD74HC125 Dataheets PDF



Part Number CD74HC125
Manufacturers Texas Instruments
Logo Texas Instruments
Description High-Speed CMOS Logic Quad Buffer
Datasheet CD74HC125 DatasheetCD74HC125 Datasheet (PDF)

Data sheet acquired from Harris Semiconductor SCHS143C November 1997 - Revised August 2003 CD54HC125, CD74HC125, CD54HCT125, CD74HCT125 High-Speed CMOS Logic Quad Buffer, Three-State [ /Title (CD74 HC125 , CD74 HCT12 5) /Subject (High Speed CMOS Logic Quad Buffer, ThreeState) Features Description • Three-State Outputs • Separate Output Enable Inputs • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . .

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Data sheet acquired from Harris Semiconductor SCHS143C November 1997 - Revised August 2003 CD54HC125, CD74HC125, CD54HCT125, CD74HCT125 High-Speed CMOS Logic Quad Buffer, Three-State [ /Title (CD74 HC125 , CD74 HCT12 5) /Subject (High Speed CMOS Logic Quad Buffer, ThreeState) Features Description • Three-State Outputs • Separate Output Enable Inputs • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating Temperature Range . . . -55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs • HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V • HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH The ’HC125 and ’HCT125 contain 4 independent three-state buffers, each having its own output enable input, which when “HIGH” puts the output in the high impedance state. Ordering Information PART NUMBER CD54HC125F3A CD54HCT125F3A CD74HC125E CD74HC125M CD74HC125MT CD74HC125M96 CD74HCT125E CD74HCT125M TEMP. RANGE (oC) PACKAGE -55 to 125 14 Ld CERDIP -55 to 125 14 Ld CERDIP -55 to 125 14 Ld PDIP -55 to 125 14 Ld SOIC -55 to 125 14 Ld SOIC -55 to 125 14 Ld SOIC -55 to 125 14 Ld PDIP -55 to 125 14 Ld SOIC CD74HCT125MT -55 to 125 14 Ld SOIC CD74HCT125M96 -55 to 125 14 Ld SOIC NOTE: When ordering, use the entire part number. The suffix 96 denotes tape and reel. The suffix T denotes a small-quantity reel of 250. Pinout CD54HC125, CD54HCT125 (CERDIP) CD74HC125, CD74HCT125 (PDIP, SOIC) TOP VIEW 1OE 1 1A 2 1Y 3 2OE 4 2A 5 2Y 6 GND 7 14 VCC 13 4OE 12 4A 11 4Y 10 3OE 9 3A 8 3Y CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © 2003, Texas Instruments Incorporated 1 CD54HC125, CD74HC125, CD54HCT125, CD74HCT125 Functional Diagram 1 1OE 2 1A 4 2OE 5 2A 10 3OE 9 3A 13 4OE 12 4A 3 1Y 6 2Y 8 3Y 11 4Y GND = 7 VCC = 14 TRUTH TABLE INPUTS nA nOE HL LL XH H= High Voltage Level L= Low Voltage Level X= Don’t Care Z= High Impedance, OFF State OUTPUTS nY H L Z Logic Diagram nA nOE P nY n 2 CD54HC125, CD74HC125, CD54HCT125, CD74HCT125 Absolute Maximum Ratings DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V DC Input Diode Current, IIK For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA DC Output Diode Current, IOK For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA DC Drain Current, per Output, IO For -0.5V < VO < VCC + 0.5V. . . . . . . . . . . . . . . . . . . . . . . . . . ±35mA DC Output Source or Sink Current per Output Pin, IO For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA DC VCC or Ground Current, ICC . . . . ..


CD54HC125 CD74HC125 CD54HCT125


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