Datasheet

© 2010 Microchip Technology Inc. DS70139G-page 179
dsPIC30F2011/2012/3012/3013
FIGURE 20-18: I
2
C™ BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE)
FIGURE 20-19: I
2
C™ BUS DATA TIMING CHARACTERISTICS (SLAVE MODE)
TABLE 20-34:
I
2
C™ BUS DATA TIMING REQUIREMENTS (SLAVE MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ T
A ≤ +125°C for Extended
Param
No.
Symbol Characteristic Min Max Units Conditions
IS10 T
LO:SCL Clock Low Time 100 kHz mode 4.7 — μs Device must operate at a
minimum of 1.5 MHz
400 kHz mode 1.3 — μs Device must operate at a
minimum of 10 MHz.
1 MHz mode
(1)
0.5 — μs
IS11 THI:SCL Clock High Time 100 kHz mode 4.0 — μs Device must operate at a
minimum of 1.5 MHz
400 kHz mode 0.6 — μs Device must operate at a
minimum of 10 MHz
1 MHz mode
(1)
0.5 — μs
IS20 T
F:SCL SDA and SCL
Fall Time
100 kHz mode — 300 ns CB is specified to be from
10 to 400 pF
400 kHz mode 20 + 0.1 C
B 300 ns
1 MHz mode
(1)
—100ns
IS21 T
R:SCL SDA and SCL
Rise Time
100 kHz mode — 1000 ns CB is specified to be from
10 to 400 pF
400 kHz mode 20 + 0.1 C
B 300 ns
1 MHz mode
(1)
—300ns
Note 1: Maximum pin capacitance = 10 pF for all I
2
C™ pins (for 1 MHz mode only).
IS31
IS34
SCL
SDA
Start
Condition
Stop
Condition
IS30
IS33
IS30
IS31 IS33
IS11
IS10
IS20
IS26
IS25
IS40
IS40
IS45
IS21
SCL
SDA
In
SDA
Out