saf-xc822t-1fri Infineon Technologies Corporation, saf-xc822t-1fri Datasheet - Page 34

• Manufacturer Part Number: saf-xc822t-1fri
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

Preliminary
3.2.4
The XC822/824 is delivered with all Flash sectors erased (read all zeros).
The data retention time of the XC822/824’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: Flash memory parameters are not subject to production test but verified by design
Table 12
Parameter
Read access time (per
byte)
Programming time per
wordline
Erase time (one or more
sectors)
Table 13
Retention
20 years
5 years
2 years
2 years
1) One cycle refers to the programming of all wordlines in a sector and erasing of sector. The Flash endurance
Data Sheet
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.
and/or characterization.
Flash Memory Parameters
Flash Timing Parameters (Operating Conditions apply)
Flash Data Retention and Endurance (Operating Conditions apply)
Table 13
Endurance
1,000 cycles
10,000 cycles
70,000 cycles
100,000 cycles
is valid only if the following conditions are fulfilled:
Symbol
t
t
t
ACC
PR
ER
CC
CC
CC −
1)
Min.
−
−
29
Size
up to 8 Kbytes
1 Kbyte
512 bytes
128 bytes
Values
Typ.
125
2.2
120
Max.
-
-
-
Unit
ns
ms
ms
Electrical Parameters
Remarks
Note /
Test Condition
XC822/824
V0.1, 2010-02