Serial EEPROM Series High Reliability Series 2 EEPROMs I C BUS No.09001EDT04 BR24L-W Series,BR24S-W Series ROHM s series of serial EEPROMs represent the highest level of reliability on the market. A double cell structure provides a failsafe method of data reliability, while a double reset function prevents data miswriting. In addition, gold pads and gold wires are used for internal connections, pushing the boundaries of reliability to the limit. BR24L-W Series assort 1Kbit64Kbit. BR24S-W Series are possible to operate at high speed in low voltage and assort 8Kbit256Kbit. Contents BR24L-W Series BR24L01A-W, BR24L02-W, BR24L04-W, BR24L08-W, BR24L16-W, BR24L32-W, BR24L64-W P2 BR24S-W Series BR24S08-W, BR24S16-W, BR24S32-W, BR24S64-W, BR24S128-W, BR24S256-W P20 www.rohm.com 2009.09 - Rev.D 1/40 2009 ROHM Co., Ltd. All rights reserved. Technical Note BR24L-W Series,BR24S-W Series Serial EEPROM Series High Reliability Series 2 EEPROMs I C BUS BR24L-W Series Description 2 BR24L-W series is a serial EEPROM of I C BUS interface method. Features 2 1) Completely conforming to the world standard I C BUS. All controls available by 2 ports of serial clock(SCL) and serial data(SDA) 2) Other devices than EEPROM can be connected to the same port, saving microcontroller port *1 3) 1.8V~5.5V single power source action most suitable for battery use 4) Page write mode useful for initial value write at factory shipment 5) Highly reliable connection by Au pad and Au wire 6) Auto erase and auto end function at data rewrite 7) Low current consumption *2 At write operation (5V) : 1.2mA (Typ.) At read operation (5V) : 0.2mA (Typ.) At standby operation (5V) : 0.1A (Typ.) 8) Write mistake prevention function Write (write protect) function added 9) Write mistake prevention function at low voltage *3 10) SOP8/SOP-J8/SSOP-B8/TSSOP-B8/MSOP8/TSSOP-B8J/VSON008X2030 compact package 11) Data rewrite up to 1,000,000 times 12) Data kept for 40 years 13) Noise filter built in SCL / SDA terminal 14) Shipment data all address FFh *1 BR24L02-W, BR24L16-W, BR24L32-W : 1.75.5V *2 BR24L32-W, BR24L64-W : 1.5mA *3 Refer to following list Page write Number of 8Byte 16Byte 32Byte Pages BR24L04-W Product BR24L01A-W BR24L32-W BR24L08-W number BR24L02-W BR24L64-W BR24L16-W BR24L series Bit Power source VSON008 Capacity Type SOP8 SOP-J8 SSOP-B8TSSOP-B8 MSOP8 TSSOP-B8J format Voltage X2030 1Kbit 1288 BR24L01A-W 1.85.5V 2Kbit 2568 BR24L02-W 1.75.5V 4Kbit 5128 BR24L04-W 1.85.5V 8Kbit 1K8 BR24L08-W 1.85.5V 16Kbit 2K8 BR24L16-W 1.75.5V 32Kbit 4K8 BR24L32-W 1.75.5V 64Kbit 8K8 BR24L64-W 1.85.5V www.rohm.com 2009.09 - Rev.D 2/40 2009 ROHM Co., Ltd. All rights reserved.