SN74HCT74DT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74HCT74DT is a dual D-type positive-edge-triggered flip-flop IC from Texas Instruments, operating at up to 22 MHz with HCT logic levels and 50 pF load capacitance. Available in a 14-pin SOIC package, it offers CMOS-compatible inputs and TTL-compatible outputs. From $0.22 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HCT74DT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2199(MOQ 10)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74HCT74DT?
- Dual D-type positive-edge-triggered flip-flop with independent clock, set, and reset inputs per element
- HCT logic family: CMOS-compatible inputs (1.35 V threshold) with TTL-compatible outputs, bridging legacy and modern logic
- Maximum operating frequency of 22 MHz at nominal supply, suitable for high-speed sequential logic designs
- Low output sink current spec (4 mA) in compact 14-pin SOIC package enabling easy PCB integration
- RoHS-compliant (Pb-free, e4 JEDEC-609) for compliance with environmental regulations
What is SN74HCT74DT used for?
The SN74HCT74DT is widely used in digital sequential circuits such as registers, counters, and state machines in industrial control systems, consumer electronics, and communication equipment. Its HCT logic family makes it ideal for interfacing 3.3 V CMOS logic with 5 V TTL systems in mixed-voltage board designs. It is also commonly found in clock division, data synchronization, and edge-detection applications within embedded systems and programmable logic designs.
What are the specifications of SN74HCT74DT?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | HCT |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 22000000Hz |
| Max I(ol) | 0.004A |
| Number of Bits | 1 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 35ns |
| Propagation Delay (tpd) | 35ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 24MHz |
| ## SN74HCT74DT Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the SN74HCT74DT datasheet?
SN74HCT74DT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74HCT74DT?
Compatible alternatives and drop-in replacements for SN74HCT74DT:
Flip-Flop, HCT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
Flip-Flop, HCT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
Flip-Flop, HCT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
suggested
suggested
suggested
suggested
Frequently Asked Questions
What is the maximum operating frequency of the SN74HCT74DT?
The SN74HCT74DT supports a maximum clock frequency of 22 MHz at nominal supply voltage. This makes it suitable for high-speed sequential logic, clock division, and data synchronization tasks in digital circuit designs.
What package does the SN74HCT74DT come in and what are its dimensions?
The SN74HCT74DT is housed in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package, identified by JESD-30 code R-PDSO-G14. This compact SMD package is well-suited for high-density PCB layouts in space-constrained applications.
Is the SN74HCT74DT RoHS compliant?
Yes, the SN74HCT74DT is fully RoHS compliant. It carries Pb-free status and JEDEC-609 code e4, confirming it meets international environmental standards for restriction of hazardous substances in electronic equipment.
What are typical applications for the SN74HCT74DT?
The SN74HCT74DT is commonly used in digital registers, binary counters, state machines, and edge-triggered latches. Its HCT logic family makes it especially useful for level-shifting between 3.3 V CMOS and 5 V TTL systems in mixed-voltage embedded designs.
Can the SN74HCT74DT replace 74HC74 devices?
Yes, the SN74HCT74DT is pin-compatible with 74HC74 devices but features HCT-series CMOS inputs designed to accept TTL-level signals. It is a direct drop-in replacement in applications where TTL-compatible input thresholds are required, offering the same dual flip-flop functionality.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.7100 | $7.10 |
| 25+ | $0.6404 | $16.01 |
| 100+ | $0.5643 | $56.43 |
| 790+ | $0.2537 | $200.42 |
| 1020+ | $0.2453 | $250.21 |
| 1365+ | $0.2199 | $300.16 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit