PIC32MX3XX_1 Datasheet, PDF (178/208 Pages) Microchip Technology – High-Performance, General Purpose and USB 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
TABLE 29-32: I2Cx BUS DATA TIMING REQUIREMENTS (MASTER MODE) (CONTINUED)
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Symbol
Characteristics
Min.⁽¹⁾
Max. Units
Conditions
IM40 TAA:SCL Output Valid
100 kHz mode
—
from Clock
400 kHz mode
—
3500
1000
nsec
nsec
1 MHz mode
(Note 2)
—
350 nsec
IM45 TBF:SDA Bus Free Time 100 kHz mode
4.7
—
μs
400 kHz mode
1.3
—
μs
1 MHz mode
0.5
—
μs
(Note 2)
IM50 CB
Bus Capacitive Loading
—
Note 1: BRG is the value of the I²C™ Baud Rate Generator.
400
pF
2: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).
—
—
—
The amount of time the
bus must be free
before a new
transmission can start.
—
FIGURE 29-16: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE)
SCLx
SDAx
IS30
IS31
IS33
IS34
Start
Condition
Note: Refer to Figure 29-1 for load conditions.
Stop
Condition
FIGURE 29-17: I2Cx BUS DATA TIMING CHARACTERISTICS (SLAVE MODE)
SCLx
SDAx
In
SDAx
Out
IS20
IS30
IS31
IS40
IS11
IS10
IS26
IS25
IS40
IS21
IS33
IS45
Note: Refer to Figure 29-1 for load conditions.
DS61143G-page 178
© 2010 Microchip Technology Inc.