M24LR64E-RDW6T/2 STMicroelectronics, M24LR64E-RDW6T/2 Datasheet - Page 88

• Manufacturer Part Number: M24LR64E-RDW6T/2
• Description: EEPROM 64Kbit EEProm 400kHz 13.56Mhz 1.8 to 5.5V
• Manufacturer: STMicroelectronics

Specifications of M24LR64E-RDW6T/2

• Rohs: yes
• Memory Size: 64 Kbit
• Organization: 8192 x 8
• Data Retention: 40 yr
• Maximum Clock Frequency: 400 kHz
• Maximum Operating Current: 20 uA
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 90 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-8
• Access Time: 900 ns
• Interface Type: I2C
• Minimum Operating Temperature: 0 C
• Operating Current: 20 uA
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 1.8 V

Command codes
26.5
88/140
Read Multiple Block
When receiving the Read Multiple Block command, the M24LR64E-R reads the selected
blocks and sends back their value in multiples of 32 bits in the response. The blocks are
numbered from 00h to 1FFh in the request and the value is minus one (–1) in the field. For
example, if the “Number of blocks” field contains the value 06h, seven blocks are read. The
maximum number of blocks is fixed at 32 assuming that they are all located in the same
sector. If the number of blocks overlaps sectors, the M24LR64E-R returns an error code.
The Protocol_extension_flag should be set to 1 for the M24LR64E-R to operate correctly. If
the Protocol_extension_flag is at 0, the M24LR64E-R answers with an error code. The
Option_flag is supported.
Table 47.
1. Gray color means that the field is optional.
Request parameters:
Table 48.
1. Gray color means that the field is optional.
2. Repeated as needed.
Response parameters:
Table 49.
Request
Response
Reserved for future
SOF
b
SOF
7
Request flags
UID (optional)
First block number
Number of blocks
Sector security status if Option_flag is set (see
N blocks of data
use. All at 0.
b
Request_
6
Response_
flags
8 bits
Read Multiple Block request format
Read Multiple Block response format when Error_flag is NOT set
Sector security status
8 bits
flags
b
5
Multiple
Block
Read
23h
control bits
b
Password
4
status
security
8 bits
Sector
Doc ID 022712 Rev 3
b
(2)
3
(1)
64 bits
UID
protection bits
b
(1)
Read / Write
2
32 bits
Data
b
number
Table
1
16 bits
block
First
(2)
0: Current sector not locked
1: Current sector locked
49)
of blocks
Number
8 bits
CRC16
16 bits
CRC16
b
16 bits
0
M24LR64E-R
Response
Request
EOF
EOF