
BR24T □□□□ Series
● Characteristic data (The following values are Typ. ones.)
Technical Note
300
2.0
2.0
200
100
SPEC
1.5
1.0
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1.5
1.0
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
0
-100
Ta=-40℃
Ta=25℃
0.5
0.5
-200
0
Ta=85℃
1
2
3
4
5
6
0.0
0
SPEC
1
2
3
4
5
6
0.0
0
SPEC
1
2
3
4
5
6
SUPPLY VOLTAGE : Vcc(V)
Fig.24 Input Data setup time t SU : DAT (LOW)
2.0
2
SUPPLY VOLTAGE : Vcc(V)
Fig.25 ' L ' Data output delay time t PD 0
6
SUPPLY VOLTAGE : Vcc(V)
Fig.26 'H' Data output delay time t PD 1
1.5
1.0
0.5
0.0
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
1.5
1
0.5
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
5
4
3
2
1
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
0
0
-0.5
0
1
2
3
4
5
6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
0.6
SUPPLY VOLTAGE : Vcc(V)
Fig.27 Stop condition setup time
t SU :STO
SUPPLY VOLTAGE : Vcc(V)
Fig.28 BUS open time before transmission t BUF
0.6
SUPPLY VOLTAGE : Vcc(V)
Fig.29 Internal writing cycle time t WR
0.6
0.5
0.4
Ta=-40℃
Ta=25℃
Ta=85℃
0.5
0.4
Ta=-40℃
Ta=25℃
Ta=85℃
0.5
0.4
Ta=-40℃
Ta=25℃
Ta=85℃
0.3
0.2
0.3
0.2
0.3
0.2
0.1
SPEC
0.1
SPEC
0.1
SPEC
0
0
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
SUPPLY VOLTAGE : Vcc(V)
SUPPLY VOLTAGE : Vcc(V)
SUPPLY VOLATGE : Vcc(V)
Fig.30 Noise reduction efection time t l (SCL H)
0.6
1.2
Fig.31 Noise reduction efective time t l (SCL L)
Fig.32 Noise resuction efecctive time t l (SDA H)
0.2
0.5
0.4
0.3
Ta=-40℃
Ta=25℃
Ta=85℃
1.0
0.8
0.6
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
0.1
0.0
-0.1
-0.2
Ta=-40℃
Ta=25℃
Ta=85℃
SPEC
-0.3
0.2
0.4
-0.4
0.1
SPEC
0.2
-0.5
0
0.0
-0.6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
0
1
2
3
4
5
6
SUPPLYVOLTAGE : Vcc(V)
SUPPLY VOLTAGE : Vcc(V)
SUPPLY VOLTAGE : Vcc(V)
Fig.33 Noise reduction efective time t l ( SDA L )
1.2
SPEC
1.0
0.8
Ta=-40℃
0.6
Ta=25℃
Ta=85℃
0.4
0.2
0.0
Fig.34 WP data hold time tHD:WP
Fig.35 WP setup time t SU : WP
0
1
2
3
4
5
6
SUPPLYVOLTAGE : Vcc(V)
Fig.36 WP efective time t HIGH : WP
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
6/21
2011.03 - Rev.A