SN76477N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN76477N is a complex sound synthesizer IC from Texas Instruments designed for generating a wide variety of electronic sound effects using external RC and voltage control components. It operates from a supply voltage up to 10V and integrates multiple functional blocks including noise generation, oscillators, and envelope control in a single 28-pin DIP package. Available from specialty distributors and vintage component suppliers with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- SN76477N Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -10.0°C to 40.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- All-in-one complex sound generator integrating noise source, VCO, SLF oscillator, and envelope control in one IC
- Wide supply voltage range up to 10V with voltage-controlled sound shaping for versatile audio effect design
- Classic 28-pin DIP package enables easy breadboard prototyping and integration into retro and hobbyist projects
- Generates diverse sounds including explosions, steam engines, sci-fi effects, and musical tones with simple external components
Applications
The SN76477N is a classic sound synthesis IC originally used in arcade games and consumer electronic toys to generate a rich variety of sound effects from explosions to sci-fi laser sounds. It remains popular among electronics hobbyists, audio experimenters, and retro gaming enthusiasts for creating custom sound effects circuits with minimal external components. The IC also finds use in educational kits and DIY synthesizer projects where hands-on exploration of analog sound generation concepts is desired.
Specifications
| YTEOL | 0 |
| Consumer IC Type | TONE/MUSIC SYNTHESIZER |
| JESD-30 Code | R-PDIP-T28 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP28,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 10V |
| Supply Voltage-Min (Vsup) | 7.5V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What types of sounds can the SN76477N generate?
The SN76477N can generate a wide range of electronic sound effects including explosions, steam engines, laser blasts, phaser effects, sirens, and musical tones. By adjusting external RC timing components and control voltages, users can fine-tune the noise, VCO, and envelope parameters to create highly varied and complex audio outputs.
What is the supply voltage range for the SN76477N?
The SN76477N operates from a supply voltage of up to 10V maximum, with typical operation around 5V to 9V. This range makes it compatible with standard logic-level power supplies and readily available battery packs commonly used in hobbyist and arcade game hardware.
What package does the SN76477N use and is it breadboard-friendly?
The SN76477N comes in a 28-pin plastic DIP (Dual In-line Package) with 0.6-inch row spacing, making it fully compatible with standard solderless breadboards and perfboards. This through-hole package simplifies prototyping and is ideal for hobbyist and educational applications where easy component swapping is needed.
Is the SN76477N still in production and where can it be found?
The SN76477N is a legacy product that is no longer in active production by Texas Instruments, as indicated by its YTEOL (Years to End of Life) status of 0. However, it remains available through specialty vintage component suppliers, surplus electronics distributors, and online marketplaces, making it accessible for retro restoration, hobby, and educational projects.
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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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