BR24L04FVM-WTR Rohm Semiconductor, BR24L04FVM-WTR Datasheet - Page 7

IC EEPROM 4KBIT 400KHZ 8MSOP

BR24L04FVM-WTR

Manufacturer Part Number
BR24L04FVM-WTR
Description
IC EEPROM 4KBIT 400KHZ 8MSOP
Manufacturer
Rohm Semiconductor
Datasheet

Specifications of BR24L04FVM-WTR

Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
4K (512 x 8)
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Organization
512 x 8
Interface Type
2-Wire
Maximum Clock Frequency
0.4 MHz
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Maximum Operating Current
2 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V, 3.3 V, 5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
BR24L04FVM-WTR
Manufacturer:
ROHM
Quantity:
10 166
Command
Write cycle
Data is written to the address designated by word address (n-th address).
By issuing stop bit after 8bit data input, write to memory cell inside starts.
When internal write is started, command is not accepted for tWR (5ms at maximum).
By page write cycle, the following can be written in bulk: Up to 8 bytes (BR24L01A-W, BR24L02-W)
And when data of the maximum bytes or higher is sent, data from the first byte is overwritten.
(Refer to "Internal address increment" of "Notes on page write cycle" in P8/16.)
As for page write cycle of BR24L01A-W and BR24L02-W, after the significant 5 bits (4 significant bits in BR24L01-W) of word
address are designated arbitrarily, and as for page write command of BR24L04-W, BR24L08-W, and BR24L16-W, after page
select bit (PS) of slave address is designated arbitrarily, by continuing data input of 2 bytes or more, the address of
insignificant 4 bits (insignificant 3 bits in BR24L01A-W, and BR24L02-W) is incremented internally, and data up to 16 bytes (up
to 8 bytes in BR24L01A-W and BR24L02-W) can be written.
As for page write cycle of BR24L32-W and BR24L64-W, after the significant 7 bits (in the case of BR24L32-W) of word
address, or the significant 8 bits (in the case of BR24L64-W) of word address are designated arbitrarily, by continuing data
input of 2 bytes or more, the address of insignificant 5 bits is incremented internally, and data up to 32 bytes can be written.
Arbitrary data is written to EEPROM. When to write only 1 byte, byte write is normally used, and when to write continuous
data of 2 bytes or more, simultaneous write is possible by page write cycle. The maximum number of write bytes is specified
per device of each capacity.
Up to 32 arbitrary bytes can be written. (In the case of BR24L32 / L64-W)
LINE
SDA
SDA
LINE
SDA
LINE
S
T
A
R
T
S
A
R
T
T
S
A
R
T
T
1 0
1 0
LINE
1 0
SDA
ADDRESS
1
SLAVE
ADDRESS
ADDRESS
0
Note)
1
SLAVE
1
SLAVE
A2
0
0
A1
R
S
T
A
T
Note)
Note)
A2
A2
A0
1 0
A1
A1
Fig.38 Page write cycle (BR24L01A/02/04/08/16-W)
Fig.36 Byte write cycle (BR24L01A/02/04/08/16-W)
W
R
R
W
T
E
I
/
A0
A0
ADDRESS
A
C
K
1
SLAVE
* * *
W
W
R
E
R
W
W
T
R
E
R
I
/
T
I
/
0
Fig.37 Byte write cycle (BR24L32/64-W)
Fig.39 Page write cycle (BR24L32/64-W)
Note)
ADDRESS (n)
C
A
K
C
A
K
A2
*1
1st WORD
* * *
WA
*1
12
A1
WA
7
WA
11
A0
ADDRESS (n)
ADDRESS
1st WORD
W
W
R
T
E
R
Note)
I
/
WORD
WA
12
A
C
K
*1
WA
11
WA
A
C
K
7
*1
ADDRESS
ADDRESS (n)
WA
2nd WORD
WORD
0
Fig.40 Difference of slave address of each type
C
A
K
A
C
K
D7
2nd WORD
ADDRESS
WA
DATA (n)
WA
1 0 1 0
0
0
A
C
K
A
C
K
D7
D7
DATA (n)
WA
D0
Up to 16 bytes (BR24L04-W, BR24L08-W, BR24L16-W)
Up to 32 bytes (BR 24L32-W, BR24L64-W)
DATA
0
A
C
K
A
C
K
7/16
D7
A2A1A0
D0
* 1 * 2 * 3
DATA (n+15)
A
C
K
D0
DATA
C
A
K
DATA (n+31)
O
S
T
P
*2
D0
D0
A
C
K
A
C
K
D0
S
T
O
P
O
S
T
P
A
C
K
S
O
P
T
*1 In BR24L16-W, A2 becomes P2.
*2 In BR24L08-W, BR24L16-W, A1 becomes P1.
*3 In BR24L04-W, A0 becomes PS, and in BR24L08-W
*1 As for WA7, BR24L01A-W becomes Don't Care.
*1 As for WA12, BR24L32-W becomes Don't care.
*1
*2
*1
and BR24L16-W, A0 becomes P0.
As for WA7, BR24L01A-W becomes Don't care.
As for BR24L01A/L02-W becomes (n+7).
As for WA12, BR24L32-W becomes Don't care.

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