Datasheet

 2010 Microchip Technology Inc. DS70138G-page 201
dsPIC30F3014/4013
FIGURE 23-18: I
2
C™ BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE)
FIGURE 23-19: I
2
C™ BUS DATA TIMING CHARACTERISTICS (MASTER MODE)
TABLE 23-34: I
2
C™ BUS DATA TIMING REQUIREMENTS (MASTER MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Symbol Characteristic Min
(1)
Max Units Conditions
IM10 T
LO:SCL Clock Low Time 100 kHz mode TCY/2 (BRG + 1) — s
400 kHz mode T
CY/2 (BRG + 1) — s
1 MHz mode
(2)
TCY/2 (BRG + 1) — s
IM11 T
HI:SCL Clock High Time 100 kHz mode TCY/2 (BRG + 1) — s
400 kHz mode T
CY/2 (BRG + 1) — s
1 MHz mode
(2)
TCY/2 (BRG + 1) — s
IM20 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
(2)
— 100 ns
Note 1: BRG is the value of the I
2
C Baud Rate Generator. Refer to Section 21. “Inter-Integrated Circuit™ (I
2
C)”
in the “dsPIC30F Family Reference Manual” (DS70046).
2: Maximum pin capacitance = 10 pF for all I
2
C pins (for 1 MHz mode only).
IM31
IM34
SCL
SDA
Start
Condition
Stop
Condition
IM30
IM33
Note: Refer to Figure 23-3 for load conditions.
IM11
IM10 IM33
IM11
IM10
IM20
IM26
IM25
IM40
IM40
IM45
IM21
SCL
SDA
In
SDA
Out
Note: Refer to Figure 23-3 for load conditions.