AT89C51CC01 Atmel Corporation, AT89C51CC01 Datasheet - Page 33
AT89C51CC01
Manufacturer Part Number
AT89C51CC01
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C51CC01.pdf
(167 pages)
2.AT89C51CC01.pdf
(12 pages)
3.AT89C51CC01.pdf
(32 pages)
4.AT89C51CC01.pdf
(29 pages)
Specifications of AT89C51CC01
Flash (kbytes)
32 Kbytes
Max. Operating Frequency
40 MHz
Cpu
8051-12C
Max I/o Pins
34
Uart
1
Can
1
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
62.5
Sram (kbytes)
1.25
Eeprom (bytes)
2048
Self Program Memory
API
Operating Voltage (vcc)
3.0 to 5.5
Timers
4
Isp
UART/CAN
Watchdog
Yes
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Program/Code
Memory
4129N–CAN–03/08
The T89C51CC01 implement 32K Bytes of on-chip program/code memory. Figure 17
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 17. Program/Code Memory Organization
Notes:
1. If the program executes exclusively from on-chip code memory (not from external
2. Default factory programmed parts come with maximum hardware protection. Execu-
memory), beware of executing code from the upper byte of on-chip memory (7FFFh)
and thereby disrupt I/O Ports 0 and 2 due to external prefetch. Fetching code con-
stant from this location does not affect Ports 0 and 2.
tion from external memory is not possible unless the Hardware Security Byte is
reprogrammed. See Table 27.
7FFFh
0000h
32K Bytes
EA = 1
internal
Flash
FFFFh
8000h
32K Bytes
external
memory
7FFFh
0000h
32K Bytes
EA = 0
external
memory
33