PROGRAM MEMORY Up to 16 Kbytes of the program memory can reside in the on-chip EPROM The device
can also address up to 64K of program memory external to the chip
DATA MEMORY This microcontroller has a 256 x 8 on-chip RAM In addition it can address up to 64 Kbytes of
external data memory
The Intel 87C54 is a single-chip control-oriented microcontroller which is fabricated on Intel鈥檚 reliable
CHMOS EPROM technology Being a member of the MCS-51 family the 87C54 uses the same powerful
instruction set has the same architecture and is pin-for-pin compatible with the existing MCS-51 family of
products The 87C54 is an enhanced version of the 87C51FB Its added features of 16 Kbytes of program
memory make it an even more powerful microcontroller for applications that require High Speed I O and
up down counting capabilities such as brake and traction control
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Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or
copyright for sale and use of Intel products except as provided in Intel鈥檚 Terms and Conditions of Sale for such products Intel retains the right to make
changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
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