M24LR16E-RDW6T/2 STMicroelectronics, M24LR16E-RDW6T/2 Datasheet - Page 138
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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Anticollision algorithm (informative)
Appendix A
A.1
138/143
The following pseudocode describes how anticollision could be implemented on the VCD,
using recursivity.
Algorithm for pulsed slots
function push (mask, address); pushes on private stack
function pop (mask, address); pops from private stack
function pulse_next_pause; generates a power pulse
function store(M24LR16E-R_UID); stores M24LR16E-R_UID
function poll_loop (sub_address_size as integer)
last stored collision
end poll_loop
main_cycle:
end_main_cycle
pop (mask, address)
mask = address & mask; generates new mask
mode = anticollision
send_Request (Request_cmd, mode, mask length, mask value)
for sub_address = 0 to (2^sub_address_size - 1)
if stack_not_empty ; if some collisions have been detected and
mask = null
address = null
push (mask, address)
poll_loop(sub_address_size)
pulse_next_pause
if no_collision_is_detected ; M24LR16E-R is inventoried
next sub_address
then
endif
then
else ; remember a collision was detected
endif
poll_loop (sub_address_size); recursively to process the
Anticollision algorithm (informative)
store (M24LR16E-R_UID)
push(mask,address)
; send the request
; not yet processed, the function calls itself
Doc ID 018932 Rev 8
M24LR16E-R
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