Datasheet
Serial EEPROM Series Automotive EEPROM
105℃ Operation I2C BUS EEPROM (2-Wire)
BR24Axxx-WM
(1K 2K 4K 8K 16K 32K 64K)
●General Description
BR24Axxx-WM is a serial EEPROM of I2C BUS interface method.
●Features
●Packages W(Typ.) x D(Typ.) x H(Max.)
Completely conforming to the world standard I2C BUS.
All controls available by 2 ports of serial clock
(SCL) and serial data (SDA)
Wide temperature range -40℃ to +105℃
Other devices than EEPROM can be connected to
the same port, saving microcontroller port
2.5V to 5.5V single power source operation most
suitable for battery use
SOP8
5.00mm x 6.20mm x 1.71mm
Page write mode useful for initial value write at
factory shipment
Auto erase and auto end function at data rewrite
Low current consumption
¾
¾
¾
At write operation (5V)
At read operation (5V)
At standby condition (5V) : 0.1μA (Typ.)
: 1.2mA (Typ.) *1
: 0.2mA (Typ.)
SOP- J8
4.90mm x 6.00mm x 1.65mm
Write mistake prevention function
¾
¾
Write (write protect) function added
Write mistake prevention function at low voltage
Data rewrite up to 1,000,000 times(Ta≦25℃)
Data kept for 40 years(Ta≦25℃)
Noise filter built in SCL / SDA terminal
Shipment data all address FFh
*1 BR24A32-WM, BR24A64-WM : 1.5mA
MSOP8
2.90mm x 4.00mm x 0.90mm
●Page write
Number of Pages
8Byte
16Byte
32Byte
BR24A04-WM
BR24A08-WM
BR24A16-WM
Product
number
BR24A01A-WM
BR24A02-WM
BR24A32-WM
BR24A64-WM
●BR24Axxx-WM
Capacity
1Kbit
Bit format
128×8
256×8
512×8
1K×8
Type
Power source voltage
SOP8
SOP-J8
MSOP8
BR24A01A-WM
BR24A02-WM
BR24A04-WM
BR24A08-WM
BR24A16-WM
BR24A32-WM
BR24A64-WM
2.5V to 5.5V
2.5V to 5.5V
2.5V to 5.5V
2.5V to 5.5V
2.5V to 5.5V
2.5V to 5.5V
2.5V to 5.5V
●
●
●
●
●
●
●
●
●
●
●
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2Kbit
●
4Kbit
8Kbit
16Kbit
32Kbit
64Kbit
2K×8
4K×8
8K×8
○Product structure: Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
www.rohm.com
TSZ02201-0R1R0G100140-1-2
31.Aug.2012 Rev.001
©2012 ROHM Co., Ltd. All rights reserved.
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