BR24L01 Rohm, BR24L01 Datasheet - Page 14

• Manufacturer Part Number: BR24L01
• Description: 1288 bit electrically erasable PROM
• Manufacturer: Rohm

Memory ICs
2) Software reset
COMMAND starts with start condition.
Please execute software reset in case that the device is an unexpected state after power up and / or the command
input need to be reset.
There are some kinds of software reset. Here we show three types of example as follows.
During dummy clock, please release SDA bus ( tied to V
During that time, the device may pull the SDA line LOW for Acknowledge or outputting or read data.
If the master controls the SDA line HIGH, it will conflict with the device output LOW then it makes a current overload.
It may cause instantaneous power down and may damage the device.
SCL
SDA
SCL
SDA
SCL
SDA
START
1
1
BR24L01A-W / BR24L01AF-W / BR24L01AFJ-W /
Fig.14-(a) DUMMY CLOCK
Fig.14-(b) START DUMMY CLOCK
DUMMY CLOCK
2
1
2
Fig.14-(c) START
DUMMY CLOCK
2
3
START
13
14
BR24L01AFV-W / BR24L01AFVM-W
CC
9
by pull up resistor ).
14
8
7
9
14
9
START
START
9
8
9
START
START
START
9
2
COMMAND
COMMAND
COMMAND
COMMAND
COMMAND
COMMAND
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