# Winbond W9412G6JH

> 128Mbit DDR SDRAM manufactured by Winbond

**Wikidata**: [Q113230992](https://www.wikidata.org/wiki/Q113230992)  
**Source**: https://4ort.xyz/entity/winbond-w9412g6jh

## Summary
The Winbond W9412G6JH is a 128Mbit DDR SDRAM chip manufactured by Winbond, belonging to the first generation of double-data-rate synchronous dynamic random-access memory. It operates at 2.5V and provides 16MB of storage capacity, supporting high data transfer rates for early 2000s electronic devices.

## Key Facts
- **Manufacturer**: Winbond.
- **Type**: 128Mbit DDR SDRAM (first-generation DDR).
- **Storage Capacity**: 16MB (128Mbit).
- **Operating Voltage**: 2.5V.
- **Subclass**: DDR SDRAM.
- **Image Documentation**: Featured in a Wikimedia Commons image of a Linksys WRT54GL v1.1 router board.

## FAQs
### Q: What are the key specifications of the Winbond W9412G6JH?
A: The chip provides 16MB (128Mbit) of storage, operates at 2.5V, and is classified as a first-generation DDR SDRAM.

### Q: Who manufactures the Winbond W9412G6JH?
A: It is manufactured by Winbond, a semiconductor company.

### Q: What voltage does the Winbond W9412G6JH require?
A: It operates at 2.5 volts, aligning with low-power memory standards of its time.

## Why It Matters
The Winbond W9412G6JH represents a critical component in the evolution of memory technology, specifically the transition to DDR SDRAM, which doubled data transfer rates compared to earlier SDRAM. As a 128Mbit chip, it addressed the demand for higher bandwidth in devices like routers, embedded systems, and consumer electronics during the early 2000s. Its 2.5V operation contributed to energy-efficient performance, a key consideration for device manufacturers. While not a groundbreaking innovation on its own, the W9412G6JH exemplifies the standardized, reliable memory solutions that enabled advancements in computing and networking hardware.

## Notable For
- **First-Generation DDR SDRAM**: Part of the initial wave of DDR memory, doubling data throughput compared to SDRAM.
- **Low-Voltage Operation**: 2.5V design for power efficiency in early DDR systems.
- **16MB Capacity**: 128Mbit density, a common configuration for embedded and networking devices of its era.
- **Documented Use**: Featured in hardware teardowns, such as the Linksys WRT54GL router board.

## Body
### Technical Specifications
- **Storage Capacity**: 16MB (128Mbit).
- **Voltage**: 2.5V.
- **Memory Type**: DDR SDRAM (double-data-rate).

### Manufacturer and Classification
- **Manufacturer**: Winbond.
- **Subclass**: DDR SDRAM (first generation).
- **Aliases**: W9412G6JH.

### Context and Significance
- **DDR SDRAM Role**: The first generation of DDR memory introduced in the late 1990s, replacing SDRAM by transferring data on both rising and falling clock edges.
- **Application**: Used in devices requiring moderate memory capacity and high data transfer rates, such as routers and embedded systems.
- **Documentation**: An image of the chip on a Linksys WRT54GL v1.1 router board is archived on Wikimedia Commons, highlighting its real-world implementation.