SLE4442 Siemens, SLE4442 Datasheet - Page 28

• Manufacturer Part Number: SLE4442
• Description: (SLE4432 / SLE4442) 256 Byte EEPROM
• Manufacturer: Siemens

3
3.1
Address
(decimal)
255
32
31
3
2
1
0
The Data bytes 0 to 31 can be protected against further changes by programming the associated
protection bit 0 to 31. The SLE 4442 allows data changing only after correct verification of the
Reference Data bytes. Reading of the Data bytes and of the associated protection bits is always
possible.
3.2
3.2.1 Absolute Maximum Ratings
Parameter
Supply voltage
Input voltage (any pin)
Storage temperature
Power dissipation
Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent
Semiconductor Group
:
:
damage to the device. This is a stress rating only and functional operation of the device at
these or any other conditions above those indicated in the operational sections of this data
sheet is not implied. Exposure to absolute maximum rating conditions for extended periods
may affect device reliability, including EEPROM data retention and write/erase endurance.
In the operating range the functions given in the circuit description are fulfilled.
Operational Information
Memory Map
Electrical Characteristics
Main Memory
Data Byte 255 (D7 … D0)
:
Data Byte 32 (D7 … D0)
Data Byte 31 (D7 … D0)
:
Data Byte 3 (D7 … D0)
Data Byte 2 (D7 … D0)
Data Byte 1 (D7 … D0)
Data Byte 0 (D7 … D0)
Protection Memory
Protection Bit 31 (D31)
:
Protection Bit 3 (D3)
Protection Bit 2 (D2)
Protection Bit 1 (D1)
Protection Bit 0 (D0)
26
Symbol
V
V
T
P
stg
CC
I
tot
Security Memory
(only SLE 4442)
Reference Data Byte 3 (D7 … D0)
Reference Data Byte 2 (D7 … D0)
Reference Data Byte 1 (D7 … D0)
Error Counter (0,0,0,0,0,D2,D1,D0)
min.
– 0.3
– 0.3
– 40
Limit Values
max.
6.0
6.0
70
125
SLE 4432
SLE 4442
Unit
V
V
mW
C