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BU9844GUL-WE2 Datasheet(PDF) 1 Page - Rohm |
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BU9844GUL-WE2 Datasheet(HTML) 1 Page - Rohm |
1 / 19 page 1/18 www.rohm.com 2010.09 - Rev.A © 2010 ROHM Co., Ltd. All rights reserved. High Reliability Series Serial EEPROMs WL-CSP EEPROM family I2C BUS BU9844GUL-W ● Description BU9844GUL-W series is a serial EEPROM of I 2C BUS interface method. 1.7V single power source action and actions available at 400kHz. ● Features 1) Completely conforming to the world standard I 2C 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. 3) Actions available at 400kHz clock (1.7V~5.5V) 4) 1.7~5.5V single power source action most suitable for battery use. 5) Page write mode useful for initial value write at factory shipment. 6) Auto erase and auto end function at data rewrite. 7) Low current consumption At write action (5V) : 1.2mA (Typ.) At read action (5V) : 0.2mA (Typ.) At standby action (5V) : 0.1μA (Typ.) 8) Write mistake prevention function Write (write protect) function added. Write mistake prevention function at low voltage. 9) Data rewrite up to 1,000,000times. 10) Data kept for 40 years. 11) Noise filter built in SCL / SDA terminal 12) Shipment data all address FFh. ● Page write Product number Number of pages BU9844GUL-W 16Byte ● BU9844GUL-W Type Capacity Bit format Power source voltage Package BU9844GUL-W 16Kbit 2048×8 1.7~5.5V VCSP50L1 ● Absolute maximum ratings (Ta=25℃) Parameter Symbol Ratings Unit Impressed voltage Vcc -0.3~+6.5 V Permissible dissipation Pd 220 *1 mW Storage temperature range Tstg -65~125 ℃ Operating temperature range Topr -40~85 ℃ Terminal voltage - -0.3~Vcc+1.0 V * When using at Ta=25℃ or higher, 2.2mW (*1) to be reduced per 1℃ ● Recommended action conditions Parameter Symbol Ratings Unit Power source voltage Vcc 1.7~5.5 V Input voltage Vin 0~Vcc No.10001EAT18 |
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