Datasheet
Serial EEPROM Series Standard EEPROM
WLCSP EEPROM
BU9847GUL-W
(4Kbit)
● General Description
BU9847GUL-W series is a serial EEPROM of I 2 C BUS interface method. 1.7V single power source action and actions
available at 400kHz.
● Features
● Package W(Typ.) x D(Typ.) x H(Max.)
Completely conforming to the world standard I C BUS. All controls
2
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.
Actions available at 400kHz clock (1.7V to 5.5V)
1.7V to 5.5V single power source action most suitable for battery use.
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 action (5V) : 1.2mA (Typ.)
At read action (5V) : 0.2mA (Typ.)
At standby action (5V) : 0.1 μ A (Typ.)
Write mistake prevention function
Write (write protect) function added.
Write mistake prevention function at low voltage.
Data rewrite up to 1,000,000times.
Data kept for 40 years.
Noise filter built in SCL / SDA terminal
Shipment data all address FFh.
VCSP50L1:1.95mm x 1.06mm x 0.55mm
● Page Write
Number of pages
Product number
● BU9847GUL-W
16Byte
BU9847GUL-W
Capacity
4Kbit
Bit format
512×8
Type
BU9847GUL-W
Power source voltage
1.7V to 5.5V
VCSP50L1
● Absolute Maximum Ratings (Ta=25°C)
Parameter Symbol
Ratings
Unit
Remarks
Impressed voltage
Vcc
-0.3 to +6.5
V
Permissible dissipation
Storage temperature range
Operating temperature range
Terminal voltage
Pd
Tstg
Topr
-
220
-65 to 125
-40 to 85
-0.3 to Vcc+1.0
mW
V
When using at Ta=25 ℃ or higher, 2.2mW to be reduced per 1 ℃
● Memory cell characteristics (Ta=25°C, V CC =1.7V to 5.5V)
Parameter
Limits
Min Typ.
Max
Unit
Number of data rewrite times
*1
1,000,000
-
-
Times
Data hold years
*1
40
-
-
Years
Shipment data all address FFh
*1 Not 100% TESTED
○ 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
1/24
TSZ02201-0R2R0G100480-1-2
4.SEP.2012 Rev.001
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