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SNJ54HC74J Dataheets PDF



Part Number SNJ54HC74J
Manufacturers Texas Instruments
Logo Texas Instruments
Description Dual D-Type Positive-Edge-Triggered Flip-Flops
Datasheet SNJ54HC74J DatasheetSNJ54HC74J Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN54HC74, SN74HC74 SCLS094E – DECEMBER 1982 – REVISED DECEMBER 2015 SNx4HC74 Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset 1 Features •1 Wide Operating Voltage Range: 2 V to 6 V • Outputs Can Drive Up To 10 LSTTL Loads • Low Power Consumption, 40-µA Maximum ICC • Typical tpd = 15 ns • ±4-mA Output Drive at 5 V • Very Low Input Current of 1 µA 2 Applications • Ultrasound System • Fans.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN54HC74, SN74HC74 SCLS094E – DECEMBER 1982 – REVISED DECEMBER 2015 SNx4HC74 Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset 1 Features •1 Wide Operating Voltage Range: 2 V to 6 V • Outputs Can Drive Up To 10 LSTTL Loads • Low Power Consumption, 40-µA Maximum ICC • Typical tpd = 15 ns • ±4-mA Output Drive at 5 V • Very Low Input Current of 1 µA 2 Applications • Ultrasound System • Fans • Lab Instrumentation • Vacuum Cleaners • Video Communications System • IP Phone: Wired 3 Description The SNx4HC74 devices contain two independent Dtype positive-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the holdtime interval, data at the D input can be changed without affecting the levels at the outputs. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SN74HC74N PDIP (14) 19.30 mm x 6.40 mm SN74HC74NS SO (14) 10.20 mm x 5.30 mm SN74HC74D SOIC (14) 8.70 mm x 3.90 mm SN74HC74DB SSOP (14) 6.50 mm x 5.30 mm SN74HC74PW TSSOP (14) 5.00 mm x 4.40 mm SNJ54HC74J CDIP (14) 21.30 mm x 7.60 mm SNJ54HC74W CFP (14) 9.20 mm x 6.29 mm SNJ54HC74FK LCCC (20) 8.90 mm x 8.90 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Logic Diagram (Positive Logic) PRE C CLK C Q C TG C C C C D TG TG TG CLR C C Q C 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SN54HC74, SN74HC74 SCLS094E – DECEMBER 1982 – REVISED DECEMBER 2015 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 3 6 Specifications......................................................... 4 6.1 Absolute Maximum Ratings ...................................... 4 6.2 ESD Ratings ............................................................ 4 6.3 Recommended Operating Conditions....................... 4 6.4 Thermal Information .................................................. 5 6.5 Electrical Characteristics........................................... 5 6.6 Timing Requirements ................................................ 6 6.7 Switching Characteristics .......................................... 7 6.8 Typical Characteristics .............................................. 8 7 Parameter Measurement Information .................. 9 8 Detailed Description ............................................ 10 8.1 Overview ................................................................. 10 8.2 Functional Block Diagram ....................................... 10 8.3 Feature Description................................................. 10 8.4 Device Functional Modes........................................ 10 9 Application and Implementation ........................ 11 9.1 Application Information .......................................... 11 9.2 Typical Application ................................................. 11 10 Power Supply Recommendations ..................... 12 11 Layout................................................................... 13 11.1 Layout Guidelines ................................................. 13 11.2 Layout Example .................................................... 13 12 Device and Documentation Support ................. 14 12.1 Documentation Support ........................................ 14 12.2 Related Links ........................................................ 14 12.3 Community Resources.......................................... 14 12.4 Trademarks ........................................................... 14 12.5 Electrostatic Discharge Caution ............................ 14 12.6 Glossary ................................................................ 14 13 Mechanical, Packaging, and Orderable Information ........................................................... 14 4 Revision History Changes from Revision D (July 2003) to Revision E Page • Added Applications, Device Information table, Pin Functions table, ESD Ratings table, Thermal Information table, Typical Characteristics, Feature Description section, Device Functional M.


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