HING DAHL company

Mask ROM (MROM) is a type of read-only memory (ROM) whose contents are programmed by the integrated circuit manufacturer (rather than by the user).

The main advantage of mask ROM is its cost. Per bit, mask ROM is more compact than any other kind of semiconductor memory. Since the cost of an integrated circuit strongly depends on its size, mask ROM is significantly cheaper than any other kind of semiconductor memory.

However, the one-time masking cost is high and there is a long turn-around time from design to product phase. Design errors are costly: if an error in the data or code is found, the mask ROM is useless and must be replaced in order to change the code or data.

Some integrated circuits contain only mask ROM. As of 2003, four companies produce most such mask ROM chips: Samsung Electronics, NEC Corporation, Oki Electric Industry, and Macronix.

Other integrated circuits contain mask ROM as well as a variety of other devices. In particular, many microprocessors have mask ROM to store their microcode. Some microcontrollers have mask ROM to store the bootloader or all of their firmware.

MASK Rom MCU decryption is a more specific technical field in the MCU attack research, and a typical IC series that difficult to crack. MASK series ICs do not have the read and write capabilities, so they can not be cracked by the normal program for common MCUs.

In the research of MASK Rom MCU decryption, we have made a series of breakthroughs and can successfully remove lock bits from MASK Rom MCUs. Following are MASK Rom MCUs that we are able to provide secure services,if you want to more details, welcome to contact us.

H8/38020S – 8K
H8/38021S – 12K
H8/38022S – 16K
H8/38023S – 24K
H8/38024S – 32K
H8/38073R – 24K
H8/38074R – 32K
H8/38075R – 40K
H8/38076R – 48K
H8/38083R – 24K
H8/38084R – 32K
H8/38085R – 40K
H8/38086R – 48K
H8/38098 – 96K
H8/38099 – 128K
H8/38347 60K
H8/38327 60K
H8/38324 32K
H8/38427 60K
H8/38424 32K
H8/38344 32K
H8/38447 60K
H8/38444 32K
H8/38442 -16K
H8/38773 – 24K
H8/38774 – 32K
H8/38775 – 40K
H8/38798 – 96K
H8/38799 – 128K
H8/36010
H8/36011 12K
H8/36012 16K
H8/36013 24K
H8/36014 32K
H8/36022
H8/36023 24K
H8/36024 32K
H8/36032 16K
H8/36033 24K
H8/36034 32K
H8/36035 40K
H8/36036 48K
H8/36037 56K
H8/36047 64K
H8/36048 80K
H8/36049 96K
H8/36054 32K
H8/36057 56K
H8/36082
H8/36083 24K
H8/36084 32K
H8/36085 40K
H8/36086 48K
H8/36087 56K
H8/3652 – 16K
H8/3653 – 24K
H8/3654 – 32K
H8/3655 – 40K
H8/3656 – 48K
H8/3657 – 60K
H8/3682 – 16K
H8/3683 – 24K
H8/3684 – 32K
H8/3685 – 40K
H8/3686 – 48K
H8/3687 – 56K
H8/3690
H8/3691 12K
H8/3692 16K
H8/3693 24K
H8/3694 32K
H8S/2241 – 32K
H8S/2242 – 32K
H8S/2243 – 64K
H8S/2244 – 64K
H8S/2245 – 128K
H8S/2256 – 128K
H8S/2281 – 64K
H8S/2314 – 384K
H8S/2316S – 64K
H8S/2317S – 128K
H8S/2318 – 256K
H8S/2319 – 512K
H8S/2323 – 32K
H8S/2327 – 128K
H8S/2328 – 256K
H8S/2338 256K
H8S/2341 – 32K
H8S/2343 – 64K
H8S/2344 – 96K
H8S/2345 – 128K
H8S/2355 – 128K
H8S/2357 – 128K
H8S/2365 – 256K
H8S/2365 – 256K
H8S/2375 – 256K
H8S/2612 128k
H8/3642 – 16K
H8/3643 – 24K
M30260M3A- Series
M30263M3A- Series
M30280M8- Series
M30281M8- Series
M30290M8- Series
M30291M8- Series
M30620MCP- Series
M30622M6P Series
M30623M8P Series
M30624MGP- Series
M30624MHP Series
M30626MHP- Series
M30626MJP Series
M30627MHP Series
M3062AMCT Series
M306N5MC-XXXGP
M306N5MCT Series
M30302MAP- Series

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