M24LR64-RMN6/2 STMicroelectronics, M24LR64-RMN6/2 Datasheet - Page 42
M24LR64-RMN6/2
Manufacturer Part Number
M24LR64-RMN6/2
Description
EEPROM, 64K, DUAL INTERFACE, 8SOIC
Manufacturer
STMicroelectronics
Datasheet
1.M24LR64-RDW62.pdf
(128 pages)
Specifications of M24LR64-RMN6/2
Memory Size
64Kbit
Clock Frequency
400kHz
Access Time
900ns
Supply Voltage Range
1.8V To 5V
Memory Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC
Memory Configuration
8192 X 8, 2048 X 32
Interface Type
I2C, Serial, 2-Wire
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Data rate and data coding
9
9.1
Figure 16. 1 out of 256 coding mode
42/128
Pulse
Modulated
Carrier
Data rate and data coding
The data coding implemented in the M24LR64-R uses pulse position modulation. Both data
coding modes that are described in the ISO15693 are supported by the M24LR64-R. The
selection is made by the VCD and indicated to the M24LR64-R within the start of frame
(SOF).
Data coding mode: 1 out of 256
The value of one single byte is represented by the position of one pause. The position of the
pause on 1 of 256 successive time periods of 18.88 µs (256/f
byte. In this case the transmission of one byte takes 4.833 ms and the resulting data rate is
1.65 Kbits/s (f
Figure 16
decimal) is sent by the VCD to the M24LR64-R.
The pause occurs during the second half of the position of the time period that determines
the value, as shown in
A pause during the first period transmits the data value 00h. A pause during the last period
transmit the data value FFh (255 decimal).
0 1
illustrates this pulse position modulation technique. In this figure, data E1h (225
2
3
C
. . . . . . . . .
. . . . . . . . .
/8192).
. . . . . . . .
Figure
Doc ID 15170 Rev 11
17.
2
2
5
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
4.833 ms
18.88 µs
9.44 µs
C
), determines the value of the
2
5
2
2
5
3
M24LR64-R
AI06656
2
5
4
2
5
5
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