SH7760 Datasheet, PDF (1299/1345 Pages) Renesas Technology Corp – SuperHTM RISC engine

3. I²C AC Characteristics
Table 33.18 I²C Bus Interface Module Signal Timing
Item
I2Cn_SCL frequency
I2Cn_SCL low level pulse width
I2Cn_SCL high level pulse width
I2Cn_SCL/I2Cn_SDA rise time
I2Cn_SCL/I2Cn_SDA fall time
I2Cn_SDA bus free time
I2Cn_SCL start condition hold time
I2Cn_SCL resend start condition setup time
I2Cn_SDA stop condition setup time
I2Cn_SDA setup time
I2Cn_SDA hold time
Note: t_Pcyc : one Pck cycle time
Symbol
t
Icyc
t
ICWL
t_ICWH
t_ICr
t_ICf
t
ICBF
t
ICH
t_ICS
t_ICST
t_DAS
t_ICDH
Min.
0
1.3
0.6
—
—
1.3
0.6
0.6
0.6
100
0
Typ.
—
—
—
—
—
—
—
—
—
—
—
Max. Unit
400 kHz
—
µs
—
µs
300 ns
300 ns
—
µs
—
µs
—
µs
—
µs
—
ns
0.9
µs
4. I²C Schmitt characteristics
Table 33.19 I²C Schmitt characteristics
Item
Symbol Min.
Max.
Unit Notes
Threshold voltage VTT+
VTT−
∆VTT
—
V_DDQ ×0.8 V
V
DDQ
×0.1
—
V
V_DDQ ×0.05 —
V
Threshold voltage : L → H
Threshold voltage : H → L
reference value between VTT+ and VTT−
Rev. 1.0, 02/03, page 1249 of 1294