SN74LS31DIn StockTexas Instruments
SN74LS31D is a hex delay line IC from Texas Instruments featuring inverting, non-inverting, and NAND gate delay elements in LS logic family. With 6 functions, 15 pF load capacitance, and 24 mA output current, it suits signal timing and pulse shaping applications. From $0.67, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS31D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6658(MOQ 279)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6 independent delay functions including inverting, non-inverting, and NAND gate configurations for flexible timing design
- LS-family logic with 15 pF load capacitance ensuring precise and consistent signal delay performance
- 24 mA output current (IOL) supporting robust fan-out in high-speed digital timing circuits
- RoHS-compliant (Pb-free) 16-pin SOIC package suitable for compact PCB layouts
Applications
The SN74LS31D is widely used in digital timing circuits where precise signal delay and pulse shaping are required, such as clock distribution networks and bus synchronization systems. Its mix of inverting, non-inverting, and NAND delay elements makes it ideal for generating controlled propagation delays in logic sequencing applications. It is also applied in test and measurement equipment where accurate delay line functionality is critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | INVERTING, NON INVERTING AND NAND GATES ACTING AS DELAY ELEMENTS |
| Family | LS |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | ACTIVE DELAY LINE |
| Max I(ol) | 0.024A |
| Number of Functions | 6 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 20mA |
| Programmable Delay Line | NO |
| Prop. Delay@Nom-Sup | 48ns |
| 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) | 30 |
| Total Delay-Nom (td) | 95ns |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What logic family does the SN74LS31D belong to, and what are its key electrical parameters?
The SN74LS31D belongs to the LS (Low-power Schottky) logic family. Key parameters include a maximum output sink current (IOL) of 24 mA, a load capacitance (CL) of 15 pF, and it operates as an active delay line with 6 functions including inverting, non-inverting, and NAND gate delay elements.
What are the typical applications for the SN74LS31D hex delay line IC?
The SN74LS31D is commonly used in signal timing and pulse shaping applications, clock distribution networks, bus synchronization, and digital logic sequencing. Its six delay functions make it versatile for generating controlled propagation delays in high-speed digital systems and test equipment.
What package type does the SN74LS31D come in, and is it RoHS compliant?
The SN74LS31D comes in a 16-pin R-PDSO-G16 (SOIC) surface-mount package. It is RoHS compliant with a Pb-free designation (JESD-609 Code: e4), making it suitable for use in environmentally compliant electronic assemblies.
Where can I buy the SN74LS31D, and what is the typical price?
The SN74LS31D is available from global electronic component distributors starting at approximately $0.67 per unit. FindMyChip offers worldwide sourcing with competitive pricing and fast shipping for both small and large quantity orders.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 279+ | $1.0700 | $298.53 |
| 1000+ | $0.7350 | $735.00 |
| 2520+ | $0.7080 | $1784.16 |
| 5000+ | $0.6920 | $3460.00 |
| 100000+ | $0.6658 | $66580.00 |
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