BSL Mask ROM, Marked | This is an MSP430F2274 bootloader ROM… | Flickr
U-20 MASK ROM - Your One Stop Resource For The Roland U-20, U-220 And U-110 Synths - Patches, Tones, Utilities And Information. Also, tidbits of useful info for the D-70, Rhodes Model
MASK ROM (MROM) Selection Guide: Types, Features, Applications | Engineering360
Read Only Memory | Career Companion
3DS Game Card Sizes | NeoGAF
2pcs MX23C8100MC-12 SOP-44 8M-BIT MASK ROM (8/16 BIT OUTPUT) | eBay
Read-only memory - Wikipedia
MAME devs are cracking open arcade chips to get around DRM | Ars Technica
MX23C6410PC-10 MX23C6410PC 64M-Bit (8M x 8/4M x 16) Mask ROM DIP42 X 2pcs | eBay