BR24C21 데이터 시트보기 (PDF) - ROHM Semiconductor
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BR24C21 Datasheet PDF : 21 Pages
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BR24C21xxx Series (1K)
Datasheet
●Recommended Operating Ratings
Parameter
Symbol
Ratings
Unit
Supply Voltage
Input voltage
VCC
2.5 to 5.5
VIN
0 to Vcc
V
●Electrical characteristics
DC (Unless otherwise specified, Ta=-40℃ to +85℃､VCC=2.5V to 5.5V)
Parameter
Limits
Symbol
Unit
Min. Typ. Max.
Condition
“H” Input Voltage 1
“L” Input Voltage 1
“H” Input Voltage 2
“L” Input Voltage 2
“L” Input Voltage 3
“L” Output Voltage
VIH1 0.7VCC
-
-
V SCL, SDA
VIL1
-
-
0.3VCC V SCL, SDA
VIH2
2.0
-
-
V VCLK
VIL2
-
-
0.8
V VCLK, VCC≧4.0V
VIL3
-
-
0.2VCC
V VCLK, VCC＜4.0V
VOL
-
-
0.4
V SDA, IOL=3.0mA
Input Leakage Current
ILI
-1
-
1
µA SCL, VCLK, VIN=0V to VCC
Output Leakage Current
ILO
-1
-
1
µA SDA, VOUT=0V to VCC
Operating Current
ICC
-
-
3.0
mA VCC=5.5V, fSCL=400kHz
Standby Current
ISB
-
10
100
µA VCC=5.5V, SDA=SCL=VCC,VCLK=GND *1
*1 Transmit-Only Mode - After power on, the BR24C21/F/FJ/FV is in Standby mode and does not provide the clock to the VCLK pin.
After the clock is provided to VCLK, the device is switched from Standby to Transmit-Only Mode, and the operating current flows.
Bi-directional Mode - The BR24C21/F/FJ/FV is in Standby mode after each command is performed.
AC (Unless otherwise specified, Ta=-40℃ to +85℃,VCC=2.5V to 5.5V)
Parameter
Fast-mode
Standard-mode
Symbol
VCC=2.5V to 5.5V
VCC=2.5V to 5.5V
Unit
Min. Typ. Max. Min. Typ. Max.
Clock Frequency
fSCL
-
-
400
-
-
100
kHz
Data Clock High Period
tHIGH
0.6
-
-
4.0
-
-
µs
Data Clock Low Period
tLOW
1.3
-
-
4.7
-
-
µs
SDA and SCL Rise Time
tR
-
-
0.3
-
-
1.0
µs
SDA and SCL Fall Time
tF
-
-
0.3
-
-
0.3
µs
Start Condition Hold Time
tHD:STA 0.6
-
-
4.0
-
-
µs
Start Condition Setup Time
tSU:STA 0.6
-
-
4.7
-
-
µs
Input Data Hold Time
tHD:DAT
0
-
-
0
-
-
ns
Input Data Setup Time
tSU:DAT 100
-
-
250
-
-
ns
Output Data Delay Time(SCL)
tPD
-
-
0.9 0.2
-
3.5
µs
Stop Condition Setup Time
tSU:STO 0.6
-
-
4.0
-
-
µs
Bus Free Time
tBUF
1.3
-
-
4.7
-
-
µs
Write Cycle Time
tWR
-
-
10
-
-
10
ms
Noise Spike Width (SDA and SCL)
tI
-
-
0.1
-
-
0.1
µs
AC OPERATING CHARACTERISTICS (Transmit-Only Mode)
Output Data Delay Time(VCLK)
tVPD
-
-
1.0
-
-
2.0
µs
VCLK High Period
tVHIGH 0.6
-
-
4.0
-
-
µs
VCLK Low Period
tVLOW
1.3
-
-
4.7
-
-
µs
VCLK Setup Time
tVSU
0
-
-
0
-
-
µs
VCLK Hold Time
tVHD
0.6
-
-
4.0
-
-
µs
Mode Transition Time
tVHZ
-
-
0.5
-
-
1.0
µs
Transmit-Only Powerup Time
tVPU
0
-
-
0
-
-
µs
Noise Spike Width (VCLK)
tVI
-
-
0.1
-
-
0.1
µs
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/18
TSZ02201-0R2R0G100270-1-2
10.Jul.2012 Rev.001
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