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Mask ROM Microcontroller Crack


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 terminology "mask" comes from integrated circuit fabrication, where regions of the chip are masked off during the process of photolithography.


It is common practice to use rewritable non-volatile memory – such as UV-EPROM or EEPROM – for the development phase of a project, and to switch to mask ROM when the code has been finalized. For example, Atmel microcontrollers come in both EEPROM and mask ROM formats.


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.


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.



Mitsubishi Series Mask Rom microcontroller reverse engineering

M30260M3A M30263M3A M30280M8 M30281M8 M30290M8 M30291M8 M30620MCP M30622M6P M30623M8P M30624MGP M30624MHP M30626MHP M30626MJP M30627MHP M3062AMCT M306N5MC-XXXGP M306N5MCT M30302MAP



HITACHI/ Renesas Series Mask Rom microcontroller reverse engineering

HD643039 HD643039 HD643039 HD643048 HD643048 HD643048 HD643048BF25 HD643048BF25 HD643048BF25 HD643048F16 HD643048F16 HD643048F16 HD643048PF HD643048PF HD643048PF HD643062 HD643062 HD643062 HD643062* HD643062* HD643062 HD643062BF HD643062BF HD643062BF HD643062BF25 HD643062BF25 HD643062BF25 HD643068 HD643068 HD643068 HD6431006F16 HD6431006F16 HD6431006F16 HD6432193F HD6432193F HD6432193F HD6432194F HD6432194F HD6432194F HD6432197A10FX HD6432197A10FX HD6432197A10FX HD6432197A16FX HD6432197A16FX HD6432197A16FX HD6432197SA20F3D3 HD6432197SA20F3D3 HD6432197SA20F3D3 HD6432237 HD6432237 HD6432237 HD643224 HD643224 HD643224 HD643232 HD643232 HD643232 HD6432323G01F HD6432323G01F HD6432323G01F HD6432365 HD6432365 HD6432365 HD6432365WTE HD6432365WTE HD6432365WTE HD643238 HD643238 HD643238 HD643238R43F HD643238R43F HD643238R43F HD6432633 HD6432633 HD6432633 HD6432633G00F HD6432633G00F HD6432633G00F HD6432633WG00F HD6432633WG00F HD6432633WG00F HD643265 HD643265 HD643265 HD6432653BA12F HD6432653BA12F 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HD6437034F20~AEUREUR HD6437034F20 HD6437034F20C00 HD6437034F20C00 HD6437034F20C00 HD6437034SD01F HD6437034SD01F HD6437034SD01F HD6437042 HD6437042 HD6437042 HD6437042F18 HD6437042F18 HD6437042F18 HD6437042F46 HD6437042F46 HD6437042F46 HD6437043AE00F HD6437043AE00F HD6437043AE00F HD6437043AP HD6437043AP HD6437043AP HD6437043AP00F HD6437043AP00F HD6437043AP00F HD6437043F28 HD6437043F28 HD6437043F28 HD6437097F HD6437097F HD6437097F HD6437490F HD6437490F HD6437490F HD6437827H HD6437827H HD6437827H HD643802 HD643802 HD643802 HD64384 HD64384 HD64384 H8/38020S H8/38021S H8/38022S H8/38023S H8/38024S H8/38073R H8/38074R H8/38075R H8/38076R H8/38083R H8/38084R H8/38085R H8/38086R H8/38098 H8/38099 H8/38347 H8/38327 H8/38324 H8/38427 H8/38424 H8/38344 H8/38447 H8/38444 H8/38442 H8/38773 H8/38774 H8/38775 H8/38798 H8/38799 H8/36010 H8/36011 H8/36012 H8/36013 H8/36014 H8/36022 H8/36023 H8/36024 H8/36032 H8/36033 H8/36034 H8/36035 H8/36036 H8/36037 H8/36047 H8/36048 H8/36049 H8/36054 H8/36057 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