Datasheet

Technical Note
5/21
BR24T□□□-W Series
www.rohm.com
2011.1 - Rev.H
© 2011 ROHM Co., Ltd. All rights reserved.
●Characteristic data (The following values are Typ. ones.)
0
0.5
1
1.5
2
2.5
3
3.5
0123456
SUPPLY VOLTAGE : Vcc(V)
CURRENT CONSUMPTION
AT WRITING : Icc1(mA)
0
0.5
1
1.5
2
2.5
0123456
SUPPLY VOLTAGE : Vcc(V)
STANBY CURRENT : I
SB
(uA)
-0.1
0.1
0.3
0.5
0.7
0.9
1.1
0123456
SUPPLY VOLTAGE : Vcc(V)
START CONDITION
SET UP TIME : tSU:STA(us)
0.1
1
10
100
1000
10000
0123456
SUPPLY VOLTAGE : Vcc(V)
SCL FREQUENCY : fｓｃｌ（ｋHZ）
-200
-150
-100
-50
0
50
0123456
SUPPLY VOLTAGE : Vcc(V)
INPUT DATA HOLD TIME : t
HD: STA
(ns)
0
0.2
0.4
0.6
0.8
1
0123456
SUPPLY VOLTAGE : Vcc(V)
DATA CLK H TIME : t
HIGH
(us)
0
0.5
1
1.5
2
2.5
0123456
SUPPLY VOLTAGE : Vcc(V)
CURRENT CONSUMPTION
AT WRITING : Icc1(mA)
Fig.9 Current consumption at WRITE operation I
CC
1
(fscl=400kHz BR24T01/02/04/08/16/32/64-W)
Fig.10 Current consumption at WRITE operation Icc1
(fscl=400kHz BR24T128/256-W)
Fig.14 Stanby operation I
SB
(
fscl=400kHz BR24T01/02/04/08/16/32/64-/128/256-
Fig.17 Data clock High Period t
HIGH
0
0.3
0.6
0.9
1.2
1.5
0123456
SUPPLY VOLTAGE : Vcc（V）
ＤＡＴＡ CLK L TIME : t
LOW
(us)
Fig.18 Data clock Low Period t
LOW
0
0.2
0.4
0.6
0.8
1
0123456
SUPPLY VOLTAGE : Vcc(V)
START CONDITION HOLD TIME : t
HD : STA
(us)
Fig.19 Start Condition Hold Time t
HD : STA
Fig.20 Start Condition Setup Time t
SU : STA
Fig.21 Input Data Hold Time t
HD : DAT
（HIGH）
Fig.22 Input Data Hold Time
ｔ
HD : DAT
(LOW）
Fig.23 Input Data Setup Time
ｔ
SU: DAT
(HIGH)
-200
-150
-100
-50
0
50
0123456
SUPPLY VOLTAGE : Vcc(V)
INPUT DATA HOLD TIME : t
HD :DAT
(ns)
-200
-100
0
100
200
300
0123456
SUPPLY VOLTAGE : Vcc(V)
INPUT DATA SET UP TIME : t
SU: DAT
(ns)
Fig.16 SCL frequency f
SCL
Fig.12 Current consumption at READ operation I
CC
2
(fscl=400kHz BR24T01/02/04/08/16/32/64/128/256-W)
0
1
2
3
4
5
6
0123456
SUPPLY VOLTAGE : Vcc(V)
CURRENT CONSUMPTION
AT WRITING : Icc1(mA)
Fig.11 Current consumption at WRITE operation Icc1
(fscl=400kHz BR24T512/1M-W)
0
0.1
0.2
0.3
0.4
0.5
0.6
0123456
SUPPLY VOLTAGE : Vcc(V)
CURRENT CONSUMPTION
AT READING : Icc2(mA)
Fig.13 Current consumption at READ operation I
CC
2
(fscl=400kHz BR24T512/1M-W)
Fig.15 Stanby operation I
SB
(fscl=400kHz BR24T512/1M-W)
The plan for
inserting in
BR24T512/1M-W
The plan for
inserting in
BR24T512/1M-W
0
0.1
0.2
0.3
0.4
0.5
0.6
0123456
SUPPLY VOLTAGE : Vcc(V)
CURRENT CONSUMPTION
AT READING : Icc2(mA)
0
0.5
1
1.5
2
2.5
0123456
SUPPLY VOLTAGE : Vcc(V)
STANBY CURRENT : I
SB
(uA)
The plan for
inserting in
BR24T512/1M-W
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
SPEC
SPEC
SPEC
SPEC SPEC
SPEC
SPEC
SPEC
SPEC
SPEC
SPEC