SN74LS74ADG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LS74ADG4 is a dual D-type positive-edge-triggered flip-flop IC from Texas Instruments in 14-Pin SOIC package, featuring 25 MHz max frequency, TTL-compatible logic levels, and active-low preset/clear inputs. From $0.52 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LS74ADG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5280(MOQ 750)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual D-type positive-edge-triggered flip-flops in compact 14-Pin SOIC package for space-efficient PCB designs
- 25 MHz maximum clock frequency supporting high-speed digital logic and synchronization applications
- TTL-compatible logic levels with active-low asynchronous preset and clear inputs for flexible control
- Low-power LS-family CMOS technology with 8 mA output sink current and 15 pF load capacitance
- RoHS-compliant (Pb-free) construction meeting modern environmental standards
Applications
The SN74LS74ADG4 is widely used in digital logic circuits requiring data storage and synchronization, such as counters, shift registers, and frequency dividers. It is a fundamental building block in microcontroller peripheral circuits, FPGA prototyping boards, and communication interface logic. The device also finds application in clock domain crossing circuits and state machine implementations across industrial, consumer electronics, and embedded computing designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | LS |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 25000000Hz |
| Max I(ol) | 0.008A |
| 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 | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 8mA |
| Prop. Delay@Nom-Sup | 40ns |
| Propagation Delay (tpd) | 40ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 25MHz |
| 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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74LS74ADG4:
Flip-Flop, LS Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, TTL, PDSO14
D Flip-Flop, LS Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, TTL, PDSO14
D Flip-Flop, LS Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, TTL, PDSO14
D Flip-Flop, LS Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, TTL, PDSO14
Frequently Asked Questions
What is the maximum operating frequency of the SN74LS74ADG4?
The SN74LS74ADG4 supports a maximum clock frequency of 25 MHz (25,000,000 Hz) at nominal supply voltage, making it suitable for medium-speed digital logic applications such as counters, shift registers, and synchronous state machines.
What package does the SN74LS74ADG4 use, and what are its pin count and dimensions?
The SN74LS74ADG4 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package. This compact package is ideal for PCB designs requiring a small footprint while maintaining easy soldering and inspection in automated assembly processes.
Is the SN74LS74ADG4 RoHS compliant and lead-free?
Yes, the SN74LS74ADG4 carries the 'DG4' green/RoHS-compliant suffix, indicating it is manufactured with Pb-free (lead-free) materials and meets JEDEC JESD-609 e4 environmental standards, making it suitable for use in eco-friendly and modern consumer and industrial electronics.
What are typical applications for the SN74LS74ADG4 flip-flop?
The SN74LS74ADG4 is commonly used in digital synchronization circuits, frequency dividers, data latches, and pipeline registers. Its dual D-type flip-flop configuration with independent preset and clear pins makes it ideal for state machines, counters, and clock domain crossing logic in embedded and industrial designs.
What are suitable replacements or alternatives to the SN74LS74ADG4?
Compatible alternatives include the SN74HC74 (CMOS, lower power), SN74ACT74 (higher speed), and SN74HCT74 (TTL-compatible CMOS). These devices offer the same dual D flip-flop pinout in similar SOIC packages and can often serve as drop-in replacements depending on voltage and speed requirements.
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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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Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 750+ | $0.5280 | $395.98 |
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