*
BR24L32-W/F-W/FJ-W/FV-W
BR24L64-W/F-W
Features
Pin Configurations
• 32k bit serial EEPROM organized as 4k × 8bit (BR24L32)
64k bit serial EEPROM organized as 8k × 8bit (BR24L64)
• 2 wire bus serial interface (2 byte Address)
A0 1
7 WP
A2 3
6 SCL
GND 4
• Low operating voltage range (2V operating)
Read : 1.8~5.5V
Write : 1.8~5.5V
• Low current consumption
Active : 3mA MAX
Standby : 2µA MAX
8 Vcc
A1 2
5 SDA
*
DIP8/SOP8/SOP-J8/SSOP-B8
DIP8/SOP8 (Only BR24L64)
Pin Functions
• Clock frequency : 100kHz MAX (1.8~5.5V)
400kHz MAX (2.5~5.5V)
• Write cycle time : 5ms MAX
Functions
Pin Names
A0, A1, A2
• Address auto-increment function during read operation
• Automatic erase-before-write function during write operation
• Page write function : 32byte
Slave Address Inputs
GND
SDA
Serial Data Input/Output
SCL
Serial Data Clock
WP
Write Protect
Vcc
• Inadvertent write protection function
Inadvertent write protection at low voltage (Vcc Lock-out function)
WP (Write Protect) function
• Schmitt trigger circuit and noise filter are built into SCL and
SDA pins
• 1,000,000 write cycle typical
Ground
Power Supply
• 40 years data retention
• Operating temperature range : -40~85˚C
* Under development
Block Diagram
32~64k bit EEPROM Array
A0
A1
12bit: BR24L32
13bit: BR24L64
Address
Decoder
8bit
12bit: BR24L32
13bit: BR24L64
Slave Words
Address Register
Data
Register
WP
SCL
SDA
A2
START
STOP
Control Logic
ACK
High Voltage
Generation
Voltage Detection
9