MediaTek MT1818E Disk Drive Controller Die Shot

Die shot of a MT1818 disk drive controller. This one was removed from a Toshiba DVD rewritable disk drive that also featured LightScribe Technology. This chip controls and the mechanics and the pickup assembly, and contains the required encoders, decoders, error correction engines and DSPs required for DVD Rewritable disk drives. It reads the densely compressed data from the disk and performs error corrections and digital signal processing. Unlike HDD controllers, this chip does not contain an ARM core. It instead contains a 8082 microcontroller for general management. An interesting detail on this die is the fact that numbers 1-8 can be seen on the scribe lines on both sides of this die.

This patent document gives a good architectural overview of Mediatek disk drive controllers: images.mofcom.gov.cn/trb/accessory/200712/1197009114145.pdf

Taken on: December 23, 2024

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Sets appears in: • MediaTek Disk Drive Controllers

Groups appears in: • Art of Technology

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