BR24C01 ROHM Electronics, BR24C01 Datasheet - Page 10

• Manufacturer Part Number: BR24C01
• Manufacturer: ROHM Electronics

Memory ICs
(10) Random read cycle
BR24C01A-W / AF-W / AFJ-W / AFV-W
BR24C02-W / F-W / FJ-W / FV-W
BR24C04-W / F-W / FJ-W / FV-W
• This command can read the designated word address data.
• When an ACK signal LOW is detected after D0 and a stop condition is not sent from the master (µ-COM), the next
• This command is ended by inputting a HIGH signal to the ACK signal after D0 and raising the SDA signal (stop
LINE
LINE
LINE
SDA
SDA
SDA
word address data can be read. [All words all read enabled]
(See Fig.16 to 18 for the sequential read cycles.)
condition) by raising SCL to HIGH.
S
A
R
S
A
R
S
T
A
R
T
T
T
T
T
1
1
1
0
0
0
ADDRESS
ADDRESS
ADDRESS
1
1
1
SLAVE
SLAVE
SLAVE
BR24C01A-W / BR24C01AF-W / BR24C01AFJ-W / BR24C01AFV-W / BR24C02-W / BR24C02F-W /
0 A2 A1 A0
0 A2 A1A0
0 A2 A1PS
BR24C02FJ-W / BR24C02FV-W / BR24C04-W / BR24C04F-W / BR24C04FJ-W / BR24C04FV-W
W
W
W
W
W
W
R
R
R
R
R
R
T
E
T
E
T
E
I
/
I
/
I
/
C
A
C
K
A
C
K
A
K
WA
WA
∗
7
7
WA
6
ADDRESS(n)
ADDRESS(n)
ADDRESS(n)
WORD
WORD
WORD
Fig.13
Fig.14
Fig.15
WA
WA
WA
0
0
0
C
A
C
K
A
K
A
C
K
S
A
R
S
A
R
T
T
T
T
S
A
R
T
T
1
1
1
0
0
0
ADDRESS
ADDRESS
ADDRESS
1
1
1
SLAVE
SLAVE
SLAVE
0 A2 A1A0
0 A2 A1 A0
0 A2 A1PS
W
W
W
R
D
R
R
D
R
R
E
A
D
R
E
A
E
A
/
/
/
A
C
K
A
C
K
A
C
K
D7
D7
D7
DATA(n)
DATA(n)
DATA(n)
D0
D0
D0
C
C
C
A
K
A
K
A
K
O
O
O
S
T
P
S
T
P
S
T
P