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Datasheet
Serial EEPROM Series Standard EEPROM
WLCSP EEPROM
BU9889GUL-W
(8Kbit)
● General Description
BU9889GUL-W is a serial EEPROM of I 2 C BUS interface method.
● Features
● Package W(Typ.) x D(Typ.) x H(Max.)
■
Completely conforming to the world standard I 2 C BUS.
VCSP50L1
1.60mm x 1.00mm x 0.55mm
All controls available by 2 ports of serial clock (SCL) and serial data
(SDA)
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■
■
■
■
■
■
1k words × 8 bits architecture 8kbit serial EEPROM.
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 (5V)
: 0.5mA (Typ.)
At read operation (5V) : 0.2mA (Typ.)
At standby operation (5V) : 0.1μA (Typ.)
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Write mistake prevention function
Write (write protect) function added
Write mistake prevention function at low voltage
Data rewrite up to 100,000 times
Data kept for 40 years
Noise filter built in SCL / SDA terminal
Shipment data all address FFh
● Absolute Maximum Ratings (Ta=25 ℃ )
Parameter symbol
Limits
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 ℃
● Memory cell characteristics (Ta=25 ℃ , Vcc=1.7V to 5.5V)
Parameter
Limits
Min. Typ.
Max.
Unit
Number of data rewrite times *1
Data hold years *1
100,000
40
-
-
-
-
Times
Years
Shipment data all address FFh
*1 Not 100% TESTED
● Recommended Operating Ratings
Parameter
Power source voltage
Input voltage
Symbol
V CC
V IN
Limits
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
1/23
TSZ02201-0R2R0G100490-1-2
05.SEP.2012 Rev.001
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