M24LR04E-RMC6T/2 STMicroelectronics, M24LR04E-RMC6T/2 Datasheet - Page 120

• Manufacturer Part Number: M24LR04E-RMC6T/2
• Description: EEPROM 4-Kbit EEProm 400kHz 13.56Mhz 1.8 to 5.5V
• Manufacturer: STMicroelectronics

Specifications of M24LR04E-RMC6T/2

• Rohs: yes

Command codes
Figure 77. SetRstEHEn frame exchange between VCD and M24LR04E-R
26.27
120/142
M24LR04E-R
M24LR04E-R
VCD
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the SetRstEHEn command to the end of the M24LR04E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin remains in high-Z
state.
CheckEHEn
On receiving the CheckEHEn command, the M24LR04E-R reads the Control register and
sends back its 8-bit value in the response.
The Protocol_extension_flag should be set to 0 for the M24LR04E-R to operate correctly. If
the Protocol_extension_flag is at 1, the M24LR04E-R answers with an error code. The
Option_flag is not supported. The Inventory_flag must be set to 0.
Table 114. CheckEHEn request format
1. Gray means that the field is optional.
Request parameters:
Table 115. CheckEHEn response format when Error_flag is NOT set
Response parameters:
Response SOF
Request
SOF
UID (optional)
One byte of data: volatile Control register (see
SOF
Request_
SetRstEHEn
flags
8 bits
request
Response_flags
CheckEHEn
A3h
8 bits
EOF
Doc ID 022208 Rev 5
<-t
<-t
1
1
-> SOF
-> SOF
IC Mfg code
02h
SetRstEHEn
SetRstEHEn
8 bits
Data
response
response
Table
64 bits
UID
15)
(1)
EOF
EOF
CRC16
16 bits
WriteEHCfg sequence
WriteEHCfg sequence
CRC16
16 bits
when no error
when error
M24LR04E-R
Response
EOF
Request
EOF