SN74AC74DRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74AC74DRE4 is a dual D-type positive-edge-triggered flip-flop IC from Texas Instruments in the AC logic family. It features two independent flip-flop elements with set and reset inputs, maximum operating frequency of 125MHz, and 14-pin SOIC package for high-speed digital logic applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74AC74DRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual independent D-type positive-edge-triggered flip-flops with separate set and reset for flexible logic design
- High-speed AC family with maximum frequency of 125MHz and low output current rating for reliable switching
- 14-pin SOIC package (R-PDSO-G14) enables straightforward PCB integration in space-efficient digital designs
Applications
The SN74AC74DRE4 is widely used in synchronous digital systems for data storage, frequency division, and clock signal synchronization. It suits applications such as microprocessor interface logic, state machines, pipeline registers, and communication bus interfaces. The AC family's high-speed performance and CMOS compatibility make it a dependable choice for both commercial and industrial digital logic designs.
Specifications
| YTEOL | 0 |
| Family | AC |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 125000000Hz |
| Max I(ol) | 0.012A |
| 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 |
| Prop. Delay@Nom-Sup | 10.5ns |
| Propagation Delay (tpd) | 16ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| 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 | 125MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74AC74DRE4:
D Flip-Flop, AC Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
D Flip-Flop, AC Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
D Flip-Flop, AC Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
Frequently Asked Questions
What is the maximum operating frequency of the SN74AC74DRE4?
The SN74AC74DRE4 operates at a maximum frequency of 125MHz, making it suitable for high-speed synchronous logic designs including clock dividers, pipeline stages, and fast state machines in digital systems.
What logic family does the SN74AC74DRE4 belong to?
The SN74AC74DRE4 is part of Texas Instruments' AC (Advanced CMOS) logic family. AC family devices offer high-speed performance with low power consumption, compatibility with both TTL and CMOS voltage levels, and wide operating voltage range.
What package does the SN74AC74DRE4 use?
The SN74AC74DRE4 is housed in a 14-pin Small Outline IC (SOIC) package, designated R-PDSO-G14. This through-hole compatible surface-mount package is widely supported by PCB assembly processes and facilitates easy replacement and sourcing.
Does the SN74AC74DRE4 have set and reset functionality?
Yes, each flip-flop in the SN74AC74DRE4 includes active-low asynchronous set (S) and reset (R) inputs, allowing designers to initialize flip-flop states independently of the clock signal, which is essential for power-up sequencing and fault recovery logic.
What are common applications for the SN74AC74DRE4?
Common applications include digital frequency division, synchronous data latching, shift register stages, bus interface buffering, and state machine implementation. The dual flip-flop architecture in a single 14-pin SOIC package reduces component count and simplifies PCB layout in logic-heavy designs.
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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.
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