BU99901GUZ-W ROHM Co. Ltd., BU99901GUZ-W Datasheet - Page 4

• Manufacturer Part Number: BU99901GUZ-W
• Description: 4k?8 Bit Electrically Erasable Prom
• Manufacturer: ROHM Co. Ltd.

◇BLOCK DIAGRAM
◇PIN CONFIGURATION
◇PIN NAME
TEST
Land No.
B3
B2
B1
A3
A2
A1
HIGH VOLTAGE GEN.
PIN NAME
B
A
DECODER
ADDRESS
TEST
GND
SDA
SCL
Vcc
WP
Fig-3 BU99901GUZ－Ｗ（bottom view）
12bit
CONTOROL LOGIC
TEST Pin Connect with GND
○
○
TEST
SDA
1
B1
A1
12bit
Fig.-2 BLOCK DIAGRAM
START
32 kbit EEPROM ARRAY
○
○
ADDRESS REGISTER
IN/OUT
GND
SCL
B2
A2
2
I/O
SLAVE・WORD
IN
IN
IN
V
-
-
CC
STOP
REV. A
LEVEL
○
○
VDD
B3
A3
3
WP
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
ACK
REGISTER
DATA
8bit
FUNCTIONS
Vcc
GND
WP
SCL
SDA
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