BR24L02NUX-WTR Rohm Semiconductor, BR24L02NUX-WTR Datasheet - Page 5

• 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

●Sync data input / output timing
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BR24L□□-W Series,BR24S□□□-W Series
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○Input read at the rise edge of SCL
○Data output in sync with the fall of SCL
○At write execution, in the area from the D0 taken clock rise of the first
○By setting WP “HIGH” in the area, write can be cancelled.
SDA
SCL
SCL
SDA
DATA(1), to tWR, set WP=“LOW”.
(output)
WP
When it is set WP=“HIGH” during tWR, write is forcibly ended, and data
of address under access is not guaranteed, therefore write it once again.
(input)
SCL
SDA
(入力)
SDA
(出力)
(n-th address)
D1
Fig.1-(a) Sync data input / output timing
Write data
tHD:STA
DATA(1)
tBUF
Fig.1-(e) WP timing at write cance
D0
D0
Fig.1-(c) Write cycle timing
ACK
ACK
tR
tSU:DAT
tHIGH:WP
Stop condition
DATA(n)
tPD
tF
tLOW
ｔW R
tHIGH
Start condition
ACK
tDH
tHD:DAT
tWR
5/40
SCL
SDA
WP
SCL
SDA
D1
DATA(1)
tSU：WP
Fig.1-(d) WP timing at write execution
tSU:STA
D0
Fig.1-(b) Start-stop bit timing
ACK
tHD:STA
START BIT
DATA(n)
tSU:STO
ACK
ストップコンディション
Stop condition
Technical Note
2009.09 - Rev.D
ｔWR
STOP BIT
ｔHD：WP