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Datasheet
Serial EEPROM Series Standard EEPROM
WLCSP EEPROM
BU9897GUL-W
(128Kbit)
BU9897GUL-W is a serial EEPROM of I C BUS interface method.
Completely conforming to the world standard I C BUS.
● General Description
2
Memory density is 128Kbit (16,384 × 8bit) , compact package VCSP50L2.
● Features
2
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.
1.7V to 5.5V single power source action most suitable for battery use.
FAST MODE :400kHz at 1.7V to 5.5V
Page write mode useful for initial value write at factory shipment.
Auto erase and auto end function at data rewrite.
Low current consumption
At write operation (5.0V)
At read operation (5.0V)
At standby operation (5.0V)
: 0.5mA (Typ.)
: 0.2mA (Typ.)
: 0.1μA (Typ.)
Write mistake prevention function
Write (write protect) function added
Write mistake prevention function at low voltage
Compact package
W(Typ.) x D(Typ.) x H(Max.)
Data rewrite up to 1,000,000 times
Data kept for 40 years
Noise filter built in SCL / SDA terminal
Shipment data all address FFh
● Page write
: 2.44mm x 1.99mm x 0.55mm
Product number
BU9897GUL-W
Number of pages
64Byte
● Absolute Maximum Ratings (Ta=25 ℃ )
Parameter symbol
Ratings
Unit
Remarks
Impressed voltage
V CC
-0.3 to 6.5
V
Permissible dissipation
Storage temperature range
Action temperature range
Terminal voltage
Pd
Tstg
Topr
－
220
-65 to 125
-40 to 85
-0.3 to V CC +1.0
mW
℃
℃
V
When using at Ta=25 ℃ or higher, 2.2mW to be reduced per 1 ℃
The Max value of Terminal Voltage is not over 6.5V.
● Memory cell characteristics (Ta=25 ℃ , V CC =1.7V to 5.5V)
Parameter
Limits
Min. Typ.
Max.
Unit
Number of data rewrite times *1
Data hold years *1
1,000,000
40
－
－
－
－
Times
Years
*1 Not 100% TESTED
● Recommended Operating Ratings
Parameter
Power source voltage
Input voltage
Symbol
V CC
V IN
Ratings
1.7 to 5.5
0 to V CC
Unit
V
○ Product structure ： Silicon monolithic integrated circuit
○ This product is not designed protection against radioactive rays
www.rohm.com
?2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 14 ? 001
1/22
TSZ02201-0R2R0G100500-1-2
4.SEP.2012 Rev.001
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