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Datasheet
Serial EEPROM Series Standard EEPROM
WLCSP EEPROM
BU9829GUL-W (16Kbit)
● General Description
BU9829GUL-W is Serial EEPROM built-in LDO regulator by SPI BUS interface.
● Features
○ EEPROM PART
2,048 words × 8 bits architecture serial EEPROM
Wide operating voltage range (1.6V to 3.6V)
Serial Peripheral Interface
Self-timed write cycle with automatic erase
Low Power consumption
Write (3.6V) : 1.5mA (Typ.)
Read (3.6V) : 0.5mA (Typ.)
Standby (3.6V) : 0.1μA (Typ.)
Auto-increment of registers address for Read mode
32 byte Page Write mode
DATA security
Defaults to power up with write-disabled state
Software instructions for write-enable/disable
Block writes protection by status register
Write inhibit at low Vcc
Initial data FFh in all address,
00h in status register and 10 in VSET [1:0].
Data retention: 10 years
Endurance : 100,000 erase/write cycles
○ LDO REGULATOR PART
Low power consumption
Standby (3.6V) : 0.1 μA (Typ.)
Operation (3.6V) : 0.1mA (Typ.)
Power on/off by enable pin
Initial LDO output voltage 2.9V
Setting output voltage by EEPROM command (VSET WRITE)
● Typical Application Circuit
Vcc2(3.3V)
Vcc1(1.8V)
● Package W(Typ.) x D(Typ.) x H(Max.)
VCSP50L1
1.74mm x 1.65mm x 0.55mm
R PU
BU9829GUL-W
Vcc1
CSB
SCK
SO
SI
Vcc2
R PU
LDOEN
V OUT
GND
C L
(0.1μF)
C
(0.1μF)
C
R PD
○ Product structure : Silicon monolithic integrated circuit
R PD
○ This product is not designed protection against radioactive rays
www.rohm.com
?2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 14 ? 001
1/23
TSZ02201-0R2R0G100400-1-2
28.AUG.2012 Rev.001
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