BR24T256FJ-W
I²C BUS 256kbit(32768x8bit) EEPROM
BR24T256FJ-W
I²C BUS 256kbit(32768x8bit) EEPROM
ROHM的串行EEPROM按照世界高水平为用户准备了多种容量、接口和封装形式，在世界上具有较高的市场占有率。ROHM的串行EEPROM配置有世界标准的总线形式（Microwire、I²C、SPI），而且工作电源电压范围宽（1.7 ～ 5.5V、1.8 ～ 5.5V、2.5 ～ 5.5V、3.0 ～ 3.6V），还适合采用电池供电。整个系列均是无铅产品，符合RoHS指令。
主要规格
特性：
Series
BR24T-W
Density [bit]
256K
Bit Format [Word x Bit]
32K x 8
Vcc(Min.)[V]
1.6
Vcc(Max.)[V]
5.5
Circuit Current (Max.)[mA]
2.5
Standby Current (Max.)[μA]
2
Write Cycle (Max.)[ms]
5
Input Frequency (Max.)[Hz]
400k
Endurance (Max.)[Cycle]
106
Data Retention (Max.)[Year]
40
I/F
I2C BUS(2-Wire)
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
4.9x6 (t=1.65)
特点：
- Completely conforming to the world standard I²C BUS. All controls available by 2 ports of serial clock (SCL) and serial data (SDA)
- Other devices than EEPROM can be connected to the same port, saving microcontroller port
- 1.6V to 5.5V Single Power Source Operation most suitable for battery use
- 1.6V to 5.5V wide limit of operating voltage, possible FAST MODE 400KHz operation
- Page Write Mode useful for initial value write at factory shipment
- Self-timed Programming Cycle
- Low Current Consumption
- Prevention of Write Mistake
- More than 1 million write cycles
- More than 40 years data retention
- Noise filter built in SCL / SDA terminal
- Initial delivery state FFh
