AT89C51CC03U-S3SIM ATMEL [ATMEL Corporation], AT89C51CC03U-S3SIM Datasheet - Page 41

• Manufacturer Part Number: AT89C51CC03U-S3SIM
• Description: Enhanced 8-bit MCU with CAN Controller and Flash Memory
• Manufacturer: ATMEL [ATMEL Corporation]

Program/Code
Memory
4182I–CAN–06/05
The AT89C51CC03 implement 64K Bytes of on-chip program/code memory. Figure 20
shows the partitioning of internal and external program/code memory spaces depending
on the product.
The Flash memory increases EPROM and ROM functionality by in-circuit electrical era-
sure and programming. Thanks to the internal charge pump, the high voltage needed for
programming or erasing Flash cells is generated on-chip using the standard VDD volt-
age. Thus, the Flash Memory can be programmed using only one voltage and allows In-
System Programming commonly known as ISP. Hardware programming mode is also
available using specific programming tool.
Figure 20. Program/Code Memory Organization
FFFFh
0000h
64K Bytes
internal
EA = 1
Flash
FFFFh
0000h
64K Bytes
EA = 0
external
memory
41