LRI2K-W4/3GE STMicroelectronics, LRI2K-W4/3GE Datasheet - Page 52

• Manufacturer Part Number: LRI2K-W4/3GE
• Description: IC EEPROM 2048BIT 97PF 8UFDFPN
• Manufacturer: STMicroelectronics

Specifications of LRI2K-W4/3GE

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO15693, ISO18000-3
• Package / Case: 8-UFDFPN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Commands codes
20.5
52/86
Lock Block
On receiving the Lock Block command, the LRI2K permanently locks the selected block.
The Option_flag is supported.
During the write cycle t
Otherwise, the LRI2K may not lock correctly the memory block. The t
+ 18 × 302µs.
Table 31.
Request parameters:
●
●
Table 32.
Response parameter:
●
Table 33.
Response parameter:
●
Figure 44. Lock Block frame exchange between VCD and LRI2K
Request
Response
LRI2K
LRI2K
SOF
VCD
Response SOF
SOF
(Optional) UID
Block number
No parameter.
Error code as Error_flag is set:
–
–
–
10h: block address not available
11h: block is locked
14h: block not locked
Request_
SOF
Lock Single Block request format
Lock Block response format when Error_flag is NOT set
Lock Block response format when Error_flag is set
flags
8 bits
Response_flags
Lock Block
8 bits
request
Lock Block
Response_flags
W
, there should be no modulation (neither 100% nor 10%).
22h
8 bits
EOF
Error code
<------------ t
<-t
8 bits
1
->
64 bits
SOF
UID
W
------------><- t
Lock Block
CRC16
16 bits
response
number
Block
8 bits
1
CRC16
16 bits
-> SOF
EOF
W
time is equal to t
CRC16
16 bits
Lock sequence when
Lock Block
response
Response EOF
error
Response
Request
EOF
EOF
EOF
LRI2K
1nom