Datasheet
PIC32MX5XX/6XX/7XX
DS60001156J-page 382 2009-2016 Microchip Technology Inc.
TABLE 32-32: I2Cx BUS DATA TIMING REQUIREMENTS (MASTER MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(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
(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
(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
(2)
—100ns
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
(2)
—300ns
IM25 T
SU
:
DAT
Data Input
Setup Time
100 kHz mode 250 — ns —
400 kHz mode 100 — ns
1 MHz mode
(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
(2)
0 0.3 s
IM30 T
SU
:
STA
Start Condition
Setup Time
100 kHz mode T
PB
* (BRG + 2) —
ns
Only relevant for
Repeated Start
condition
400 kHz mode T
PB
* (BRG + 2) — ns
1 MHz mode
(2)
T
PB
* (BRG + 2) — ns
IM31 T
HD
:
STA
Start Condition
Hold Time
100 kHz mode T
PB
* (BRG + 2) —
ns
After this period, the
first clock pulse is
generated
400 kHz mode T
PB
* (BRG + 2) — ns
1 MHz mode
(2)
T
PB
* (BRG + 2) — ns
IM33 T
SU
:
STO
Stop Condition
Setup Time
100 kHz mode T
PB
* (BRG + 2) —
ns
—
400 kHz mode T
PB
* (BRG + 2) — ns
1 MHz mode
(2)
T
PB
* (BRG + 2) — ns
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
(2)
T
PB
* (BRG + 2) — ns
IM40 T
AA
:
SCL
Output Valid from
Clock
100 kHz mode — 3500 ns —
400 kHz mode — 1000 ns —
1 MHz mode
(2)
—350ns —
IM45 T
BF
:
SDA
Bus Free Time 100 kHz mode 4.7 — s The amount of time the
bus must be free before
a new
transmission can start
400 kHz mode 1.3 — s
1 MHz mode
(2)
0.5 — s
IM50 C
B
Bus Capacitive Loading — 400 pF —
IM51 T
PGD
Pulse Gobbler Delay
(3)
52 312 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 (only for 1 MHz mode).
3:
The typical value for this parameter is 104 ns.