sak-xc2264m-72fxxl Infineon Technologies Corporation, sak-xc2264m-72fxxl Datasheet - Page 96

• Manufacturer Part Number: sak-xc2264m-72fxxl
• Description: 16/32-bit Single-chip Microcontroller With 32-bit Performance
• Manufacturer: Infineon Technologies Corporation

4.5
The XC226xM is delivered with all Flash sectors erased and with no protection installed.
The data retention time of the XC226xM’s Flash memory (i.e. the time after which stored
data can still be retrieved) depends on the number of times the Flash memory has been
erased and programmed.
Note: These parameters are not subject to production test but verified by design and/or
Note: Operating Conditions apply.
Table 23
Parameter
Programming time per
128-byte page
Erase time per
sector/page
Data retention time
Flash erase endurance for
user sectors
Flash erase endurance for
security pages
Drain disturb limit
Parallel Flash module
program/erase limit,
depending on the Flash
read activity
1) Programming and erase times depend on the internal Flash clock source. The control state machine needs a
2) A maximum of 64 Flash sectors can be cycled 15,000 times. For all other sectors the limit is 1,000 cycles.
3) This parameter limits the number of subsequent programming operations within a physical sector. The drain
4) Flash module 3 can be erased/programmed while code is executed and/or data is read from any other Flash
5) All Flash modules can be erased/programmed while code is executed and/or data is read from only one Flash
Data Sheet
few system clock cycles. This requirement is only relevant for extremely low system frequencies.
disturb limit is applicable if wordline erase is used repeatedly. For normal sector erase/program cycles this
limit will not be violated.
modules.
module or from PSRAM.
The Flash module that delivers code/data can, of course, not be erased/programmed.
characterization.
Flash Memory Parameters
2)
Flash Characteristics
Symbol
t
t
t
N
N
N
N
PR
ER
RET
ER
SEC
DD
PP
Min.
–
–
20
15,000 –
10
32
–
–
XC2000 Family Derivatives / Base Line
96
Limit Values
Typ.
3
7
–
–
–
–
–
XC2268M/67M, XC2265M/64M/63M
1)
1)
–
–
–
Max.
3.5
8
–
1
4
Unit
ms
ms
years
cycles Data retention
cycles Data retention
cycles
–
–
Electrical Parameters
Note / Test
Condition
ms
ms
1,000 erase /
program
cycles
time 5 years
time 20 years
3)
Unrestricted
execution
Restricted
execution
V2.0, 2009-03
5)
4)