SN74AHCT74NIn StockTexas Instruments
Dual positive-edge-triggered D-type flip-flop with clear and preset from Texas Instruments AHCT family. Operates at up to 65 MHz with 50 pF load capacitance and CMOS-compatible inputs. From $0.29 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74AHCT74N Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2937(MOQ 25)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual D-type flip-flop with independent clear and preset for flexible state control
- High-speed AHCT logic: up to 65 MHz operating frequency with 50 pF load
- CMOS-compatible inputs with TTL output drive levels for mixed-logic designs
- Low power consumption with 8 mA output sink current per channel
- 14-pin DIP package for easy prototyping and through-hole assembly
Applications
The SN74AHCT74N is widely used in digital systems for clock-synchronous data storage, frequency division, and state machine design. Its dual flip-flop configuration with independent clear and preset makes it ideal for shift registers, counters, and pipeline stages in microcontroller-based circuits. It is also commonly applied in signal synchronization and edge-detection circuits in industrial control and communications equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AHCT/VHCT/VT |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 65000000Hz |
| Max I(ol) | 0.008A |
| Number of Bits | 1 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 10ns |
| Propagation Delay (tpd) | 10ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 70MHz |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74AHCT74N:
D Flip-Flop, AHCT/VHCT/VT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
D Flip-Flop, AHCT/VHCT/VT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDSO14
Frequently Asked Questions
What is the maximum operating frequency of the SN74AHCT74N?
The SN74AHCT74N supports a maximum clock frequency of 65 MHz at nominal supply voltage with a 50 pF load capacitance, making it suitable for high-speed digital logic applications requiring reliable edge-triggered data capture.
What are the clear and preset pins used for on the SN74AHCT74N?
The active-low clear (CLR) and preset (PRE) pins allow asynchronous forced reset or set of each flip-flop output independent of the clock. This enables immediate initialization of circuit state, which is essential for power-on reset sequences and fault-recovery logic in embedded systems.
Is the SN74AHCT74N compatible with both CMOS and TTL logic families?
Yes. The AHCT logic family accepts CMOS-level inputs (VIH ≥ 3.15 V) while providing TTL-compatible output drive levels. This makes the SN74AHCT74N an ideal interface device between 3.3 V CMOS logic and 5 V TTL systems.
What package does the SN74AHCT74N come in and how does it help prototyping?
The SN74AHCT74N is available in a 14-pin dual in-line package (DIP), which is ideal for breadboard prototyping and through-hole PCB assembly. Its wide lead pitch simplifies manual soldering and integration into development boards.
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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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| Qty. | Unit Price | Ext. Price |
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| 25+ | $0.5020 | $12.55 |
| 1000+ | $0.3932 | $393.20 |
| 5000+ | $0.3780 | $1890.00 |
| 10000+ | $0.3505 | $3505.00 |
| 100000+ | $0.2937 | $29370.00 |
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