Xr951a0

Updated September 20, 2026

Overview

Product sourcing insights & recommendations

49 来源

The phrase XR951A0 refers to a proprietary Yamaha Integrated Circuit (IC) primarily used in electronic musical instruments from the early-to-mid 1990s Jotrin. It is a 40-pin Dual In-line Package (DIP40) chip that functions as a specialized controller for digital sound processing and keyboard scanning Latinafy Jotrin.

Product Overview

* Manufacturer: Yamaha Corporation Ovaga.

* Key Functions: The XR951A0 is an Application-Specific Integrated Circuit (ASIC) designed for keyboard matrix scanning, MIDI processing, and sound generation control in electronic organs and portable keyboards Ovaga Latinafy.

* Common Applications: It is a core component in legacy Yamaha models, including the PSR-73, PSR-74, and various PortaSound (PSS) series keyboards like the PSS-14 and PSS-21 Jotrin.

* Technical Features: It features integrated logic for simultaneous signal sampling and high-speed multiplexed output, which helps maintain precise timing and audio fidelity in digital instruments Ovaga.

Market Trends & Insights

* Sourcing Challenge: As a proprietary legacy part, the XR951A0 is no longer in mass production for new designs. The primary market consists of vintage instrument restoration and the "circuit bending" community. Authentic parts are typically sourced from "donor" boards or specialized legacy electronics distributors Jotrin.

* Semiconductor Context (2026): While the XR951A0 is a niche legacy part, the broader semiconductor market in 2026 is moving toward AI-integrated processors and high-efficiency GaN technology Infineon Htec. However, the demand for original legacy ICs remains steady among enthusiasts seeking to preserve the authentic FM synthesis and digital "warmth" of 90s instruments.

* Price Variability: Market prices for "New Old Stock" (NOS) or salvaged XR951A0 chips can vary significantly due to scarcity, often ranging from $5 to $20 USD depending on the supplier's stock and testing verification Ic2Ic Aliexpress.

Quick Specs Summary

Attribute	Detail
Manufacturer	Yamaha
Package	DIP-40 (Through-hole)
Status	Legacy / Proprietary ASIC
Core Models	Yamaha PSR and PSS series keyboards
Market Use	Repair, Restoration, Circuit Bending

Ovaga Latinafy Jotrin

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Sources & References

49 sources cited · Verified industry data & reports

XR951A0 YAMAHA Integrated Circuits (ICs)

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