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| S3FB42F Datasheet, PDF (284/432 Pages) Samsung semiconductor – 8-BIT CMOS MICROCONTROLLER | |||
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S3FB42F
EMBEDDED FLASH MEMORY INTERFACE
24 EMBEDDED FLASH MEMORY INTERFACE
OVERVIEW
The S3FB42F has an on-chip flash ROM instead of masked ROM. The flash ROM is accessed by serial data format
and the type of a half flash. The S3FB42F's embedded 106.5 K-word (213 K-byte) memory has several operating
features below:
The S3FB42F has 6 pins used to read/write the flash memory, VDD/VSS, Reset, VPP, SDAT, SCLK.
The flash memory control block supports tool program mode :
TOOL PROGRAM MODE
The 6 pins are connected to a tool board and programmed by Serial OTP Tool(MDS). 12.5V is supplied into the VPP
pin. The other modules except flash ROM module are at a reset state.
This mode doesn't support sector erase but chip erase and two protection modes. (hard lock protection/ read
protection)
24-1
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