BR24L02NUX-WTR Rohm Semiconductor, BR24L02NUX-WTR Datasheet - Page 29

• Manufacturer Part Number: BR24L02NUX-WTR
• Description: IC EEPROM 2KBIT 100KHZ VSON8
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of BR24L02NUX-WTR

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 2K (256 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-UFDFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2009 ROHM Co., Ltd. All rights reserved.
BR24L□□-W Series,BR24S□□□-W Series
S D A
L IN E
www.rohm.com
SDA
LINE
○Notes on write cycle continuous input
○Notes on page write cycle
S
T
A
R
T
1 0
List of numbers of page write
The above numbers are maximum bytes for respective types. Any bytes below these can be written.
In the case of BR24S256-W, 1 page = 64bytes, but the page write cycle write time is 5ms at maximum for 64byte bulk write.
It does not stand 5ms at maximum × 64byte = 320ms(Max.).
A D D R E S S
1
S L A V E
Number of pages
S
T
A
R
T
0
Product number
note )
A 2
1 0
A 1
ADDRESS
A 0
SLAVE
1
note)
W
W
R
E
R
T
I
/
0
A
C
K
P2
＊
Fig.39
W A
14
A D D R E S S (n )
P1
1 st W O R D
W A
13
Fig.38
P0
*1
W A
12
W
R
/
W A
11
W
R
T
E
I
A
C
K
WA
7
ADDRESS（ｎ）
Page write cycle(BR24S32/64/128/256-W)
A
C
K
Page write cycle(BR24S08/16-W)
WORD
A D D R E S S (n )
2 n d W O R D
BR24S08-W
BR24S16-W
16Byte
WA
0
W A
0
A
C
K
A
C
K
D7
D 7
DATA(n)
D A T A (n )
D 0
D0
A
C
K
BR24S32-W
BR24S64-W
A
C
K
29/40
32Byte
D A TA (n+ 31 )
DATA(n+15)
*2
D 0
A
C
K
O
S
T
P
tW R (ma ximu m : 5 m s)
C o m m an d is n ot a ccep te d for
th is period .
D0
A t S TO P (stop bit)
w rite starts.
A
C
K
O
S
T
P
S
A
R
T
T
1 0 1 0
N e xt co m m a n d
At STOP (stop bit)
write starts.
BR24S128-W
BR24S256-W
64Byte
tWR(maximum：5ms)
Command is not accepted for this
period.
*1 As for WA12, BR24S32-W becomes Don't care.
*2 As for BR24S128/256-W becomes (n+63).
Next command
S
T
A
R
T
1
As for WA13, BR24S32/64-W becomes Don't care.
As for WA14, BR24S32/64/128-W becomes Don't care.
0
1
0
Technical Note
2009.09 - Rev.D