BR24L□□-W Series,BR24S□□□-W Series
Technical Note
●Action
timing characteristics (Unless otherwise specified, Ta=
-
40�½�+85℃, V
CC
=1.8�½�5.5V)
*1
FAST-MODE
STANDARD-MODE
2.5V≦Vcc≦5.5V
1.8V≦Vcc≦5.5V
Parameter
Symbol
Min.
SCL frequency
Data clock “HIGH“ time
Data clock “LOW“ time
SDA, SCL rise time
SDA, SCL fall time
*2
*2
Unit
kHz
μs
μs
μs
μs
μs
μs
ns
ns
μs
μs
μs
μs
ms
μs
ns
μs
μs
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
400
-
-
0.3
0.3
-
-
-
-
0.9
-
-
-
5
0.1
-
-
--
Min.
-
4.0
4.7
-
-
4.0
4.7
0
250
0.2
0.2
4.7
4.7
-
-
0
0.1
1.0
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
100
-
-
1.0
0.3
-
-
-
-
3.5
-
-
-
5
0.1
-
-
-
fSCL
tHIGH
tLOW
tR
tF
tHD:STA
tSU:STA
tHD:DAT
tSU:DAT
tPD
tDH
tSU:STO
tBUF
tWR
tI
tHD:WP
tSU:WP
tHIGH:W
P
-
0.6
1.2
-
-
0.6
0.6
0
100
0.1
0.1
0.6
1.2
-
-
0
0.1
1.0
Start condition hold time
Start condition setup time
Input data hold time
Input data setup time
Output data delay time
Output data hold time
Stop condition setup time
Bus release time before transfer start
Internal write cycle time
Noise removal valid period (SDA, SCL terminal)
WP hold time
WP setup time
WP valid time
*1 BR24L02/16/32-W : 1.7�½�5.5V
*2 Not 100% tested
●FAST-MODE
and STANDARD-MODE
FAST-MODE and STANDARD-MODE are of same actions, and mode is changed. They are distinguished by action speeds.
100kHz action is called STANDARD-MODE, and 400kHz action is called FAST-MODE. This action frequency is the
maximum action frequency, so 100kHz clock may be used in FAST-MODE. When power source voltage goes down, action
at high speed is not carried out, therefore, at Vcc=2.5V�½�5.5V , 400kHz, namely, action is made in FASTMODE. (Action is
made also in STANDARD-MODE) Vcc=1.8V~2.5V is only action in 100kHz STANDARD-MODE.
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2009.09 - Rev.D
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