R8C3GA Datasheet, PDF (40/56 Pages) Renesas Technology Corp – RENESAS MCU

R8C/3GA Group
5. Electrical Characteristics
Table 5.16 Timing Requirements of I²C bus Interface ⁽¹⁾
Symbol
tSCL
tSCLH
tSCLL
tsf
tSP
tBUF
tSTAH
tSTAS
tSTOP
tSDAS
tSDAH
Parameter
SCL input cycle time
SCL input “H” width
SCL input “L” width
SCL, SDA input fall time
SCL, SDA input spike pulse rejection time
SDA input bus-free time
Start condition input hold time
Retransmit start condition input setup time
Stop condition input setup time
Data input setup time
Data input hold time
Condition
Standard
Min.
Typ.
12tCYC + 600 ⁽²⁾
−
3tCYC + 300 ⁽²⁾
−
5tCYC + 500 ⁽²⁾
−
−
−
−
−
5tCYC ⁽²⁾
−
3tCYC ⁽²⁾
−
3tCYC ⁽²⁾
−
3tCYC ⁽²⁾
−
1tCYC + 40 ⁽²⁾
−
10
−
Unit
Max.
−
ns
−
ns
−
ns
300
ns
1tCYC ⁽²⁾
ns
−
ns
−
ns
−
ns
−
ns
−
ns
−
ns
Notes:
1. VCC = 1.8 to 5.5 V, VSS = 0 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified.
2. 1tCYC = 1/f1(s)
SDA
tBUF
VIH
VIL
tSTAH
tSCLH
SCL
P⁽²⁾
S⁽¹⁾
tsf
tSCLL
tsr
tSCL
Notes:
1. Start condition
2. Stop condition
3. Retransmit start condition
tSDAH
Figure 5.7 I/O Timing of I²C bus Interface
tSTAS
Sr⁽³⁾
tSP tSTOP
P⁽²⁾
tSDAS
REJ03B0235-0110 Rev.1.10 Sep. 10, 2009
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