Product Overview
Vintage 8-Bit Programmable Sound Generator IC for Retro Computers (5V)
Condition
Single unit available. Unused NOS vintage item in original retail packaging with the original technical sheet documentation. Evaluation: Visual inspection only. Function testing not performed. Source: private maker closing down their workshop.
Ships same business day from Idaho. Packed carefully.
Product Overview
Radio Shack / Archer 276-1787 contains a General Instrument AY-3-8910A programmable sound generator (PSG) chip. This 8-bit era IC is used to generate classic 3-channel tones/noise and also provides two 8-bit parallel I/O ports for system integration. It requires a host microprocessor or microcontroller to write registers and is commonly used for period-correct repairs and chiptune-style projects.
Key Features
- Chip: General Instrument AY-3-8910A programmable sound generator
- Package: 40-pin DIP
- Supply voltage: single +5 V DC
- Audio: three independently programmable analog output channels
- I/O: two 8-bit parallel I/O ports
- Interface: compatible with 8-bit and 16-bit microprocessor buses
- Operating temperature: 0°C to 70°C
- Date code: 8644 (44th week of 1986)
- Includes: original Archer technical data sheet documentation
Applications
- Retro computer and sound card repair (AY-3-8910A PSG replacement)
- Arcade and pinball board restoration using period-correct sound hardware
- DIY chiptune synthesizers and MIDI-to-PSG projects (with a controller)
Frequently Asked Questions
Q: Is this a complete standalone sound module?
A: No. It is an IC that requires a microprocessor/microcontroller interface, a clock signal, and external audio amplification.
Q: What voltage does it run on?
A: Single +5 V DC supply.
Q: Will it work directly with 3.3V logic?
A: Not without level shifting. The chip is 5V TTL/CMOS compatible.
Q: How is this different from AY-3-8912/8913 parts?
A: The AY-3-8910A is the 40-pin version with two 8-bit parallel I/O ports.
Q: Is the item new?
A: Yes. It is unused NOS in the original Radio Shack/Archer retail packaging with the original technical sheet.
