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ST7263BDx Arkusz danych(PDF) 25 Page - STMicroelectronics

Numer części ST7263BDx
Szczegółowy opis  Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM, DFU capability, 8-bit ADC, WDG, timer, SCI and I²C
PDF  186 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7263BDx Arkusz danych(HTML) 25 Page - STMicroelectronics

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ST7263Bxx
Flash program memory
Doc ID 7516 Rev 8
25/186
4.3.1
Readout protection
Readout protection, when selected, provides a protection against program memory content
extraction and against write access to Flash memory. Even if no protection can be
considered as totally unbreakable, the feature provides a very high level of protection for a
general purpose microcontroller.
In Flash devices, this protection is removed by reprogramming the option. In this case, the
entire program memory is first automatically erased and the device can be reprogrammed.
Readout protection selection depends on the device type:
●
In Flash devices it is enabled and removed through the FMP_R bit in the option byte.
●
In ROM devices it is enabled by mask option specified in the Option List.
Figure 8.
Memory map and sector address
4.4
ICC interface
ICC (In-circuit communication) needs a minimum of four and up to six pins to be connected
to the programming tool (see Figure 9). These pins are:
●
RESET: device reset
●
VSS: device power supply ground
●
ICCCLK: ICC output serial clock pin
●
ICCDATA: ICC input/output serial data pin
●
ICCSEL/VPP: programming voltage
●
OSC1(or OSCIN): main clock input for external source (optional)
●
VDD: application board power supply (see Figure 9, Note 3)
4 Kbytes
4 Kbytes
2Kbytes
SECTOR 1
SECTOR 0
16 Kbytes
SECTOR 2
8K
16K
32K
60K
FLASH
FFFFh
EFFFh
DFFFh
3FFFh
7FFFh
1000h
24 Kbytes
MEMORY SIZE
8Kbytes
40 Kbytes 52 Kbytes
9FFFh
BFFFh
D7FFh
4K
10K
24K
48K



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