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STMicroelectronics Electronic Components Datasheet

M24LR64-R Datasheet

64 Kbit EEPROM

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M24LR64-R
64 Kbit EEPROM with password protection & dual interface:
400 kHz I²C serial bus & ISO 15693 RF protocol at 13.56 MHz
Features
I²C interface
Two-wire I2C serial interface
supports 400 kHz protocol
Single supply voltage:
– 1.8 V to 5.5 V
Byte and Page Write (up to 4 bytes)
Random and Sequential Read modes
Self-timed programming cycle
Automatic address incrementing
Enhanced ESD/latch-up protection
Contactless interface
ISO 15693 and ISO 18000-3 mode 1 compliant
13.56 MHz ±7k Hz carrier frequency
To tag: 10% or 100% ASK modulation using
1/4 (26 Kbit/s) or 1/256 (1.6 Kbit/s) pulse
position coding
From tag: load modulation using Manchester
coding with 423 kHz and 484 kHz subcarriers
in low (6.6 kbit/s) or high (26 kbit/s) data rate
mode. Supports the 53 kbit/s data rate with
Fast commands
Internal tuning capacitance: 27.5 pF
64-bit unique identifier (UID)
Read Block & Write (32-bit Blocks)
Memory
64 Kbit EEPROM organized into:
– 8192 bytes in I²C mode
– 2048 blocks of 32 bits in RF mode
Write time
– I²C: 5 ms (Max.)
– RF: 5.75 ms including the internal Verify
time
More than 1 Million write cycles in I2C mode
SO8 (MN)
150 mils width
UFDFPN8 (MB)
2 × 3 mm
TSSOP8 (DW)
More than 100 000 write cycles in RF mode
Multiple password protection in RF mode
Single password protection in I2C mode
More than 40-year data retention
Package
– ECOPACK2® (RoHS compliant and
Halogen-free)
April 2010
Doc ID 15170 Rev 9
1/126
www.st.com
1


STMicroelectronics Electronic Components Datasheet

M24LR64-R Datasheet

64 Kbit EEPROM

No Preview Available !

Contents
Contents
www.DataSheet4U.com
M24LR64-R
1
2
3
4
5
2/126
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1 Serial Clock (SCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 Serial Data (SDA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Chip Enable (E0, E1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.4 Antenna coil (AC0, AC1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5 VSS ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6 Supply voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.1 Operating supply voltage VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.2 Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.3 Device reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.6.4 Power-down conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
User memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
System memory area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1 M24LR64-R RF block security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2 Example of the M24LR64-R security protection . . . . . . . . . . . . . . . . . . . . 24
4.3 I2C_Write_Lock bit area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.4 System parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.5 M24LR64-R I2C password security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.5.1 I2C Present Password command description . . . . . . . . . . . . . . . . . . . . 26
4.5.2 I2C Write Password command description . . . . . . . . . . . . . . . . . . . . . . 27
I2C device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1 Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2 Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.3 Acknowledge bit (ACK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.4 Data Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5 Memory addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.6 Write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.7 Byte Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Doc ID 15170 Rev 9


Part Number M24LR64-R
Description 64 Kbit EEPROM
Maker STMicroelectronics
Total Page 30 Pages
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