Texas Instruments SN74AHC125D Manual

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An IMPORTANT NOTICE at the end o f this data sheet addresses avail ability, warr anty, changes, use in safet y-critic al applications,

inte llectual property matters and other important disclaimers. P RODUCTION DATA.

SN54AHC125

SN74AHC125

SCLS256L – DECEMBER 1995 – REVISED NOVEMBER 2016

SNx4AHC125 Quadruple Bus Buer Gates With 3-State Outputs

1 Features

1 • Operating Range: 2 V to 5.5 V

• Latch-Up Performance Ex ceeds 250 mA Per

JESD 17

• Four Individual Output Enable Pins

• All Inputs Have Schmitt-Trigger Action

2 Applications

• Flow Meters

• Programmable Logic Controllers

• Power Over Ethernet (PoE)

• Motor Drives and Controls

• Electronic Point-of-Sale

3 Description

The SNx4AHC125 devices are quadruple bus buer

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.

To ensure the high-impedance st ate during power up

or power down, OE must be tied to V CC through a

pullup resistor; the minimum value of the resistor is

determined by the curr ent-sinking capability of the

driver.

Device Information(1)

PART NUMBER PACKAGE (PINS) BODY SIZE (NOM)

SNx4AHC125FK LCCC (20) 8.89 mm 8.89 mm

S Nx4AHC125DB SSOP (14) 6.20 mm 5.30 mm

SNx4AHC125D SOIC (14) 8.65 mm × 3.91 mm

SNx4AHC125NS SO (14) 10.3 0 mm × 5.30 mm

SNx4AHC125W CFP (14) 9.21 mm × 5.97 mm

SNx4AHC125DGV TVSOP (14) 3.60 mm × 4.40 mm

SNx4AHC125PW TSSOP (14) 5.00 mm × 4.40 mm

SNx4AHC125N PDIP (14) 19.3 0 mm × 6.35 mm

SNx4AHC125RGY VQFN (14) 3.50 mm × 3.50 mm

SNx4AHC125J CDIP (14) 19.56 mm × 6.67 mm

(1) For all available packag es, see the orderable addendum at

the end of the data sheet.

Logic Diagram (Positive Logic)

Pin nu mbers shown are for the D, DB, DGV, J , N, NS, PW, RGY, and W packages.

SN54AHC125

SN74AHC125

SCLS256L – DECEMBER 1995 – REVISED NOVEMBER 2016

www.ti.com

Product Folder Links: SN54AHC125 SN74AHC125

Table of Contents

1 Features .................................................................. 1

2 Applications ........................................................... 1

3 Description ............................................................. 1

4 Revision History..................................................... 2

5 Pin Conguration and Functions ......................... 3

6 Specications......................................................... 5

6.1 Absolute Maximum Ratin gs ...................................... 5

6.2 ESD Ratings.............................................................. 5

6.3 Recommended Operating Cond itions......... .............. 5

6.4 Thermal Information.................................................. 6

6.5 Electrical Characteristi c s........................................... 6

6.6 Switching Character istics: VCC = 3.3 V ±0.3 V ......... 8

6.7 Switching Character istics: VCC = 5 V ±0.5 V ........... . 9

6.8 Noise Characteristics .............................................. 10

6.9 Operating Characteristics........................................ 10

6.10 Typical Characte risti c s .......................................... 10

7 Parameter Measurement Information ................ 11

8 Detailed Description ............................................ 12

8.1 Overview ................................................................. 12

8.2 Functional Bloc k Diagram ....................................... 12

8.3 Feature Des c ripti on................................................. 12

8.4 Device Function al Modes........................................ 12

9 Application and Implementation ........................ 13

9.1 Application Information............................................ 13

9.2 Ty pi c al Appl ic ati on .................................................. 13

10 Power Supply Recommendations ..................... 15

11 Layout................................................................... 15

11.1 Layo ut Guidelin es ................................................. 15

11.2 Layout Example .................................................... 15

12 Device and Documentation Support ................. 16

12.1 Documentation Support ........................................ 16

12.2 Related Link s ........................................................ 16

12.3 Recei ving Notication of Documentation Updates 16

12.4 Community Resources.......................................... 16

12 .5 Trademarks ........................................................... 16

12.6 Electrostatic Discharge Caution . ...... ................. .... 16

12 .7 Gloss ary ................................................................ 16

13 Mechanical, Packaging, and Orderable

Information ........................................................... 16

4 Revision History

NOTE: Page numbers for previous revisions may dier f ro m page numbers in the current version.

Changes from Revision K (June 2013) to Revisi on L Page

• Added table, section, ,ESD Ratings Feature Description Device Functional Modes Application and Implementation

section, section, section, section, andPower Supply Recommendations Layout Device and Documentation Support

Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1

• Deleted table; see at the end of the data sheet ......................................Ordering Information Package Option Addendum 1

• Changed Package t hermal impedance, RθJA , value in table From: 86°C/W To: 92. 6°C/W (D),Thermal Information

From: 96 °C/W To: 107.3°C/W (DB), From: 127°C/W To: 134.6°C/W (DGV), Fro m: 80° C/ W To: 5 6.3°C/W (N), From:

76°C/W To: 89.9°C/W (NS), and From: 113°C/W To: 121.5° C/W (PW)................................................................................ 6

Changes from Revis ion J (December 1995) to Revision K Page

• Changed document format from Quicksilver to DocZone ...................................................................................................... 1

• Extended operating temperature range to 125°C................................................................................................................... 5

Produkt Specifikationer

Mærke:	Texas Instruments
Kategori:	Ikke kategoriseret
Model:	SN74AHC125D
Type:	Logisk kredsløb
Bredde:	8.75 mm
Dybde:	4 mm
Højde:	1.5 mm
Antal pr. pakke:	50 stk
Pakkedybde:	506.6 mm
Pakkebredde:	8 mm
Pakkehøjde:	3.94 mm
Opbevaringstemperatur (T-T):	-65 - 150 °C
Driftstemperatur (T-T):	-40 - 125 °C
Pakketype:	SOIC
Antal stifter:	14
Bredde (med stifter):	8.75 mm
Højde (med stifter):	1.75 mm
Dybde (med stifter):	6.2 mm