M62320P/FP
I2C BUS Characteristics
Limits
Item
Symbol
Min
Max
Unit
SCL clock frequency
fSCL
0
100
kHz
Free time: the bus must be free before a new transmission can start tBUF
4.7
—
µs
Hold time START Condition
tHD:STA
4.0
—
µs
After this period, the first clock pulse is generated.
Low period of the clock
High period of the clock
Set-up time for START condition
Only relevant for a repeated START condition
tLOW
4.7
tHIGH
4.0
tSU:STA
4.7
—
µs
—
µs
—
µs
Data Hold time
tHD:DAT
0
—
µs
Data Set-up time
tSU:DAT
250
—
ns
Rise time of SDA and SCL signals
tR
—
1000
ns
Fall time of SDA and SCL signals
Set-up time for STOP condition
tF
—
tSU:STO
4.0
300
ns
—
µs
Note: Transmitter must internally provide at least a hold time to bridge the undefined region (300 ns max) of the falling
edge of SCL.
Timing Chart
VIH
SDA
VIL
tHD:STA
tR, tF
tSU:DAT
tHD:DAT
tSU:STA
tBUF
tSU:STO
VIH
SCL
VIL
Start
tLOW
tHIGH
Start
Stop
Start
REJ03D0863-0300 Rev.3.00 Mar 25, 2008
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