M24LR16E-RDW6T/2 STMicroelectronics, M24LR16E-RDW6T/2 Datasheet - Page 24
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M24LR16E-RDW6T/2
Manufacturer Part Number
M24LR16E-RDW6T/2
Description
EEPROM 16kB EEPROM Dual INT 400 kHz IC2 13.56MHz
Manufacturer
STMicroelectronics
Datasheet
1.M24LR16E-RMC6T2.pdf
(143 pages)
Specifications of M24LR16E-RDW6T/2
Product Category
EEPROM
Rohs
yes
Memory Size
16 Kbit
Organization
256 x 8
Data Retention
40 yr
Maximum Clock Frequency
400 KHz
Maximum Operating Current
50 mA
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TSSOP-8
Access Time
900 ns
Interface Type
2-Wire Serial, I2C
Minimum Operating Temperature
-40 C
Operating Current
50 mA
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System memory area
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4.1
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System memory area
M24LR16E-R block security in RF mode
The M24LR16E-R provides a special protection mechanism based on passwords. In RF
mode, each memory sector of the M24LR16E-R can be individually protected by one out of
three available passwords, and each sector can also have Read/Write access conditions
set.
Each memory sector of the M24LR16E-R is assigned with a Sector security status byte
including a Sector Lock bit, two Password Control bits and two Read/Write protection bits,
as shown in
Table 6
using the Read Single Block and Read Multiple Block commands with the Option_flag set
to 1.
On delivery, the default value of the SSS bytes is set to 00h.
Table 6.
Table 7.
When the Sector Lock bit is set to 1, for instance by issuing a Lock-sector command, the two
Read/Write protection bits (b
described in
Table 8.
Sector
Lock
E2 = 1
E2 = 1
E2 = 1
E2 = 1
b
0
0
1
1
1
1
7
I
2
C byte address
describes the organization of the Sector security status byte, which can be read
Table
Sector security status byte area
Sector security status byte organization
Table
Read / Write protection bit setting
b
2
00
01
10
11
xx
, b
b
0
6
1
7.
8.
12
0
4
8
when password presented
Read
Read
Read
Read
Read
b
0
5
1
Doc ID 018932 Rev 8
, b
Bits [31:24]
Sector access
2
SSS 11
SSS 15
SSS 3
SSS 7
) are used to set the Read/Write access of the sector as
Password control bits
b
4
No Write
Write
Write
Write
Write
Bits [23:16]
SSS 14
SSS 10
SSS 2
SSS 6
b
3
when password not presented
No Read
No Read
Read
Read
Read
b
protection bits
Read / Write
Bits [15:8]
2
SSS 13
SSS 1
SSS 5
SSS 9
Sector access
b
1
M24LR16E-R
No Write
No Write
No Write
Bits [7:0]
Write
Write
SSS 12
SSS 0
SSS 4
SSS 8
Sector
Lock
b
0
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