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SN54HC74J Datasheet Preview

SN54HC74J Datasheet

Dual D-Type Positive-Edge-Triggered Flip-Flops

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SN74HC74, SN54HC74
SCLS094F – DECEMBER 1982 – REVISED JUNE 2021
SNx4HC74 Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset
1 Features
• Buffered inputs
• Wide operating voltage range: 2 V to 6 V
• Wide operating temperature range: -40°C to +85°C
• Supports fanout up to 10 LSTTL loads
• Significant power reduction compared to LSTTL
logic ICs
2 Applications
Convert a momentary switch to a toggle switch
• Divide a clock signal by 2 or 4
3 Description
The SNx4HC74 devices contain two independent
D-type positive-edge-triggered flip-flops with
asynchronous preset and clear pins for each.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SN74HC74D
SOIC (14)
8.70 mm × 3.90 mm
SN74HC74DB
SSOP (14)
6.50 mm × 5.30 mm
SN74HC74N
PDIP (14)
19.30 mm × 6.40 mm
SN74HC74NS
SO (14)
10.20 mm × 5.30 mm
SN74HC74PW
TSSOP (14) 5.00 mm × 4.40 mm
SN54HC74J
CDIP (14)
21.30 mm × 7.60 mm
SN54HC74W
CFP (14)
9.20 mm × 6.29 mm
SN54HC74FK
LCCC (20)
8.90 mm × 8.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
xCLK
C
C
xPRE
C
xQ
C
xD
C
C
C
C
C
xQ
C
xCLR
Functional pinout
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.




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SN54HC74J Datasheet Preview

SN54HC74J Datasheet

Dual D-Type Positive-Edge-Triggered Flip-Flops

No Preview Available !

SN74HC74, SN54HC74
SCLS094F – DECEMBER 1982 – REVISED JUNE 2021
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
Pin 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 - 74..................................... 5
6.6 Electrical Characteristics - 54..................................... 6
6.7 Timing Requirements - 74...........................................6
6.8 Timing Requirements - 54...........................................7
6.9 Switching Characteristics - 74.....................................7
6.10 Switching Characteristics - 54...................................8
6.11 Operating Characteristics..........................................8
6.12 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..........................................11
9 Application and Implementation.................................. 12
9.1 Application Information............................................. 12
9.2 Typical Application.................................................... 12
10 Power Supply Recommendations..............................15
11 Layout........................................................................... 16
11.1 Layout Guidelines................................................... 16
11.2 Layout Example...................................................... 16
12 Device and Documentation Support..........................17
12.1 Documentation Support.......................................... 17
12.2 Support Resources................................................. 17
12.3 Trademarks............................................................. 17
12.4 Electrostatic Discharge Caution..............................17
12.5 Glossary..................................................................17
13 Mechanical, Packaging, and Orderable
Information.................................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (December 2015) to Revision F (June 2021)
Page
• Updated to new data sheet standards................................................................................................................ 1
• RθJA increased for the D (86 to 133.6 /W), DB (96 to 107.7 /W), NS (76 to 122.6 /W), and PW (113 to
151.7 /W) and decreased for the N package (80 to 61.9 /W) .....................................................................5
2
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Product Folder Links: SN74HC74 SN54HC74
Copyright © 2021 Texas Instruments Incorporated


Part Number SN54HC74J
Description Dual D-Type Positive-Edge-Triggered Flip-Flops
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