M24LR16E-RDW6T/2 STMicroelectronics, M24LR16E-RDW6T/2 Datasheet - Page 53

• Manufacturer Part Number: M24LR16E-RDW6T/2
• Description: EEPROM 16kB EEPROM Dual INT 400 kHz IC2 13.56MHz
• Manufacturer: STMicroelectronics

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

M24LR16E-R
10
10.1
10.2
10.3
Communication signal from M24LR16E-R to VCD
The M24LR16E-R has several modes defined for some parameters, owing to which it can
operate in various noise environments and meet various application requirements.
Load modulation
The M24LR16E-R is capable of communication to the VCD via an inductive coupling area
whereby the carrier is loaded to generate a subcarrier with frequency f
generated by switching a load in the M24LR16E-R.
The load-modulated amplitude received on the VCD antenna must be of at least 10 mV
when measured as described in the test methods defined in International Standard
ISO10373-7.
Subcarrier
The M24LR16E-R supports the one-subcarrier and two-subcarrier response formats. These
formats are selected by the VCD using the first bit in the protocol header. When one
subcarrier is used, the frequency f
When two subcarriers are used, the frequency f
is 484.28 kHz (f
continuous phase relationship between f
Data rates
The M24LR16E-R can respond using the low or the high data rate format. The selection of
the data rate is made by the VCD using the second bit in the protocol header. For fast
commands, the selected data rate is multiplied by two.
rates produced by the M24LR16E-R using the different response format combinations.
Table 20.
High
Low
Standard commands
Fast commands
Standard commands
Fast commands
Data rate
Response data rates
C
/28). When using the two-subcarrier mode, the M24LR16E-R generates a
Doc ID 018932 Rev 8
S1
13.24 Kbit/s (f
of the subcarrier load modulation is 423.75 kHz (f
6.62 Kbit/s (f
26.48 Kbit/s (f
52.97 Kbit/s (f
One subcarrier
Communication signal from M24LR16E-R to VCD
S1
and f
S1
S2
c
c
/2048)
c
c
/1024)
/512)
/256)
is 423.75 kHz (f
.
Table 20
shows the different data
C
6.67 Kbit/s (f
26.69 Kbit/s (f
/32), and frequency f
Two subcarriers
not applicable
not applicable
S
. The subcarrier is
c
/2032)
c
/508)
C
53/143
/32).
S2