BU9844GUL-W_13 Datasheet, PDF (4/30 Pages) Rohm – WLCSP EEPROM

BU9844GUL-W (16Kbit)
Block Diagram
VCC
GND
9bit
Address
decoder
16Kbit EEPROM array
Slave – word
9bit _{address register}
8bit
Data
register
START
STOP
A2
Control circuit
ACK
High voltage
generating circuit
Power source
voltage detection
Datasheet
WP
SCL
SDA
Pin Configuration
(BOTTOM VIEW)
○ ○ ^C
C1
C2
○ ○ ^B
B1
B2
○ ○ ^A
A1
A2
12
INDEX POST
Pin Descriptions
Land No. Terminal Name
A1
VCC
A2
A2
B1
WP
B2
GND
C1
SCL
Input/ Output
－
Input
Input
Input
Input
Function
Power Supply
Out of Use (Vcc or GND or OPEN)
Write Protect Input
Ground (0V)
Serial Clock Input
C2
SDA ^(Note1)
Input /Output
Slave and Word Address,
Serial Data Input, Serial Data Output ^(Note1)
(Note1) An open drain output requires a pull-up resister.
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TSZ22111・15・001
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TSZ02201-0R2R0G100470-1-2
17.Sep.2013 Rev.002