M24LR04E-RDW6T/2 STMicroelectronics, M24LR04E-RDW6T/2 Datasheet - Page 111

• Manufacturer Part Number: M24LR04E-RDW6T/2
• Description: EEPROM 4-Kbit Dual EEPROM 1.8 to 5.5V 13.56Mhz
• Manufacturer: STMicroelectronics

Specifications of M24LR04E-RDW6T/2

• Product Category: EEPROM
• Memory Size: 4 Kbit
• Maximum Clock Frequency: 400 KHz
• Maximum Operating Current: 20 uA
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-8
• Factory Pack Quantity: 1

M24LR04E-R
26.20
Fast Read Multiple Block
On receiving the Fast Read Multiple Block command, the M24LR04E-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 to 32 assuming that they are all located in the same
sector. If the number of blocks overlaps sectors, the M24LR04E-R returns an error code.
The Protocol_extension_flag should be set to 0 for the M24LR04E-R to operate correctly.
The Option_flag is supported. The data rate of the response is multiplied by 2.
The subcarrier_flag should be set to 0, otherwise the M24LR04E-R answers with an error
code.
Table 94.
1. Gray means that the field is optional.
Request parameters:
Table 95.
1. Gray means that the field is optional.
2. Repeated as needed.
Response parameters:
Table 96.
Request
Response
Reserved for future use.
SOF
b
SOF
7
Request flag
UID (Optional)
First block number
Number of blocks
Sector security status if Option_flag is set (see
N block of data
All at 0.
Request_
b
Response_
6
8 bits
flags
Fast Read Multiple Block request format
Fast Read Multiple Block response format when Error_flag is NOT set
Sector security status if Option_flag is set
flags
8 bits
b
5
Multiple
Block
Read
Fast
C3h
b
control bits
Password
status
security
4
8 bits
Sector
Doc ID 022208 Rev 5
IC Mfg
code
(2)
02h
(1)
b
3
protection bits
Read / Write
b
2
64 bits
UID
(1)
32 bits
Data
b
1
Table
(2)
0: Current sector not locked
1: Current sector locked
number
block
8 bits
First
96)
Number
blocks
8 bits
of
CRC16
16 bits
b
0
Command codes
CRC16
16 bits
Response
Request
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