saf-xc836t-2fri Infineon Technologies Corporation, saf-xc836t-2fri Datasheet - Page 38

• Manufacturer Part Number: saf-xc836t-2fri
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

3.2.4
The XC835/836 is delivered with all Flash sectors erased (read all zeros).
The data retention time of the XC835/836’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)
Flash wait states
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
Symbol
t
t
t
N
is valid only if the following conditions are fulfilled:
ACC
PR
ER
WSFLASH
1)
CC –
CC –
CC –
CC
Min. Typ. Max.
Limit Values
33
Size
up to 8 Kbytes
1 Kbyte
512 bytes
128 bytes
125
2.2
120
0
1
–
–
–
Unit Remarks
ns
ms
ms
Electrical Parameters
Remarks
CPU clock = 8 MHz
CPU clock = 24 MHz
XC835/836
V1.0, 2010-09