HD64F2149 Datasheet, PDF (795/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Table 25.10 I²C Bus Timing
Conditions: V_CC = 2.7 V to 3.6 V, V_SS = 0 V, ø = 5 MHz to maximum operating frequency,
T_a = –20 to +75°C
Ratings
Item
Symbol Min Typ Max Unit Notes
SCL input cycle time
SCL input high pulse width
SCL input low pulse width
SCL, SDA input rise time
SCL, SDA input fall time
SCL, SDA input spike pulse
elimination time
t _SCL
t _SCLH
t _SCLL
t _Sr
t _Sf
t _SP
12
—
—
t_cyc Figure 25.27
3
—
—
t _cyc
5
—
—
t _cyc
—
—
7.5* t_cyc
—
—
300 ns
—
—
1
t _cyc
SDA input bus free time
t _BUF
Start condition input hold time
t _STAH
Retransmission start condition input t_STAS
setup time
5
—
—
t _cyc
3
—
—
t _cyc
3
—
—
t _cyc
Stop condition input setup time
t _STOS
3
—
—
t _cyc
Data input setup time
t _SDAS
0.5
—
—
t _cyc
Data input hold time
t _SDAH
0
—
—
ns
SCL, SDA capacitive load
C_b
—
—
400 pF
Note: * 17.5t_cyc can be set according to the clock selected for use by the I²C module. For details,
see section 16.4, Usage Notes.
761