Microchip Technology DV320032 Data Sheet
2012-2013 Microchip Technology Inc.
DS60001185C-page 299
PIC32MX330/350/370/430/450/470
TABLE 30-32: I2Cx BUS DATA TIMING REQUIREMENTS (MASTER MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature
(unless otherwise stated)
Operating temperature
-40°C
T
A
+85°C for Industrial
-40°C
T
A
+105°C for V-temp
Param.
No.
Symbol
Characteristics
Min.
(1)
Max.
Units
Conditions
IM10
T
LO
:
SCL
Clock Low Time 100 kHz mode
T
PB
* (BRG + 2)
—
s
—
400 kHz mode
T
PB
* (BRG + 2)
—
s
—
1 MHz mode
(Note 2)
T
PB
* (BRG + 2)
—
s
—
IM11
T
HI
:
SCL
Clock High Time 100 kHz mode
T
PB
* (BRG + 2)
—
s
—
400 kHz mode
T
PB
* (BRG + 2)
—
s
—
1 MHz mode
(Note 2)
T
PB
* (BRG + 2)
—
s
—
IM20
T
F
:
SCL
SDAx and SCLx
Fall Time
100 kHz mode
—
300
ns
C
B
is specified to be
from 10 to 400 pF
400 kHz mode
20 + 0.1 C
B
300
ns
1 MHz mode
(Note 2)
—
100
ns
IM21
T
R
:
SCL
SDAx and SCLx
Rise Time
100 kHz mode
—
1000
ns
C
B
is specified to be
from 10 to 400 pF
400 kHz mode
20 + 0.1 C
B
300 ns
1 MHz mode
(Note 2)
—
300
ns
IM25
T
SU
:
DAT
Data Input
Setup Time
100 kHz mode
250
—
ns
—
400 kHz mode
100
—
ns
1 MHz mode
(Note 2)
100
—
ns
IM26
T
HD
:
DAT
Data Input
Hold Time
100 kHz mode
0
—
s
—
400 kHz mode
0
0.9
s
1 MHz mode
(Note 2)
0 0.3
s
IM30
T
SU
:
STA
Start Condition
Setup Time
100 kHz mode
T
PB
* (BRG + 2)
—
s
Only relevant for
Repeated Start
Repeated Start
condition
400 kHz mode
T
PB
* (BRG + 2)
—
s
1 MHz mode
(Note 2)
T
PB
* (BRG + 2)
—
s
IM31
T
HD
:
STA
Start Condition
Hold Time
Hold Time
100 kHz mode
T
PB
* (BRG + 2)
—
s
After this period, the
first clock pulse is
generated
400 kHz mode
T
PB
* (BRG + 2)
—
s
1 MHz mode
(Note 2)
T
PB
* (BRG + 2)
—
s
IM33
T
SU
:
STO
Stop Condition
Setup Time
Setup Time
100 kHz mode
T
PB
* (BRG + 2)
—
s
—
400 kHz mode
T
PB
* (BRG + 2)
—
s
1 MHz mode
(Note 2)
T
PB
* (BRG + 2)
—
s
IM34
T
HD
:
STO
Stop Condition
100 kHz mode
T
PB
* (BRG + 2)
—
ns
—
Hold Time
400 kHz mode
T
PB
* (BRG + 2)
—
ns
1 MHz mode
(Note 2)
T
PB
* (BRG + 2)
—
ns
Note 1: BRG is the value of the I
2
C™ Baud Rate Generator.
2: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
3: The typical value for this parameter is 104 ns.
3: The typical value for this parameter is 104 ns.