BU99901GUZ-W Datasheet, PDF (4/12 Pages) Rohm – Silicon Monolithic Integrated Circuit

◇BLOCK DIAGRAM
32 kbit EEPROM ARRAY
12bit
ADDRESS
DECODER
SLAVE・WORD
12bit _{ADDRESS REGISTER}
8bit
DATA
REGISTER
TEST
START
STOP
CONTOROL LOGIC
ACK
HIGH VOLTAGE GEN.
VCC LEVEL
◇PIN CONFIGURATION
Fig.-2 BLOCK DIAGRAM
TEST Pin Connect with GND
Vcc
GND
WP
SCL
SDA
4/11
◇PIN NAME
B
○ ○ ○ ^B1
B2
B3
TEST GND VDD
A
○ ○ ^{○ A1}
A2
A3
SDA SCL
WP
1 23
Fig-3 BU99901GUZ－Ｗ（bottom view）
Land No.
B3
B2
B1
A3
A2
A1
PIN NAME
Vcc
GND
TEST
WP
SCL
SDA
I/O
-
-
IN
IN
IN
IN/OUT
FUNCTIONS
Power Supply
Ground （0V）
TEST Pin Connect with GND
Write Protect Input
Serial Clock Input
Slave and Word Address,
Serial Data Input, Serial Data Output
REV. A