saf-xc866-4rri3v Infineon Technologies Corporation, saf-xc866-4rri3v Datasheet - Page 43

• Manufacturer Part Number: saf-xc866-4rri3v
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

Table 16
Table 16
Retention
Program Flash
20 years
20 years
20 years
Data Flash
20 years
5 years
2 years
2 years
1)
2)
3.3.1
The XC866 product family offers four Flash devices with either 8 Kbytes or 16 Kbytes of
embedded Flash memory. These Flash memory sizes are made up of two or four
4-Kbyte Flash banks, respectively. Each Flash device consists of Program Flash
(P-Flash) bank(s) and a single Data Flash (D-Flash) bank with different sectorization
shown in
neither implies that the D-Flash is mapped to the data memory region, nor that it can only
be used for data storage. It is used to distinguish the different Flash bank sectorizations.
The XC866 ROM devices offer a single 4-Kbyte D-Flash bank.
Data Sheet
One cycle refers to the programming of all wordlines in a sector and erasing of sector. The Flash endurance
data specified in
- the maximum number of erase cycles per Flash sector must not exceed 100,000 cycles.
- the maximum number of erase cycles per Flash bank must not exceed 300,000 cycles.
- the maximum number of program cycles per Flash bank must not exceed 2,500,000 cycles.
If no Flash is used for data, the Program Flash size can be up to the maximum Flash size available in the
device variant. Having more Data Flash will mean less Flash is available for Program Flash.
Figure
shows the Flash data retention and endurance targets.
Flash Bank Sectorization
Flash Data Retention and Endurance (Operating Conditions apply)
Table 16
11. Both types can be used for code and data storage. The label “Data”
Endurance
1,000 cycles
1,000 cycles
1,000 cycles
1,000 cycles
10,000 cycles
70,000 cycles
100,000 cycles
is valid only if the following conditions are fulfilled:
1)
39
Size
up to 16 Kbytes
up to 8 Kbytes
up to 4 Kbytes
4 Kbytes
1 Kbyte
512 bytes
128 bytes
2)
2)
2)
Functional Description
Remarks
for 16-Kbyte Variant
for 8-Kbyte Variant
for 4-Kbyte Variant
V1.2, 2007-10
XC866