BU9847GUL-W_12 Datasheet, PDF (4/28 Pages) Rohm – WLCSP EEPROM

BU9847GUL-W (4Kbit)
●Block Diagram
V^VC^CC^C
GND
9bit
Address
decod er
4Kbit EEPROM array
Slave – word
9 bit
address register
8 bit
Data
regi ste r
START
STOP
A2
Control circuit
ACK
High voltage
generating circuti
Power source
voltage detection
Datasheet
WP
SCL
SDA
●Pin Configuration
(BOTTOM VIEW)
○ ○ ○ ^B
B1
B2
B3
○ ○ ○ ^A
A1
A2
A3
1
2
3
INDEX Post
●Pin Descriptions
Land No. Terminal name
B3
A2
B2
GND
B1
SDA
A3
Vcc
A2
WP
A1
SCL
Input/ Output
Input
-
Input/Output
-
Input
Input
Function
Slave address setting terminal
Reference voltage of al input / output, 0V
Slave and word address, Serial data input serial data output.
Connect the power source.
Write protect terminal
Serial clock input
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TSZ22111・15・001
4/24
TSZ02201-0R2R0G100480-1-2
4.SEP.2012 Rev.001