PIC32MX440F256H-80I Datasheet, PDF (620/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
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 -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Symbol
Characteristics
Min.⁽¹⁾
Max. Units
Conditions
IM10 TLO:SCL Clock Low Time 100 kHz mode TPB * (BRG + 2) —
μs
400 kHz mode TPB * (BRG + 2)
—
μs
1 MHz mode⁽²⁾ TPB * (BRG + 2)
—
μs
IM11 THI:SCL Clock High Time 100 kHz mode TPB * (BRG + 2)
—
μs
400 kHz mode TPB * (BRG + 2)
—
μs
1 MHz mode⁽²⁾ TPB * (BRG + 2)
—
μs
IM20
TF:SCL
SDAx and SCLx 100 kHz mode
Fall Time
400 kHz mode
1 MHz mode⁽²⁾
—
20 + 0.1 CB
—
300 nsec
300 nsec
100 nsec
IM21
TR:SCL
SDAx and SCLx 100 kHz mode
Rise Time
400 kHz mode
1 MHz mode⁽²⁾
—
20 + 0.1 CB
—
1000
300
300
nsec
nsec
nsec
IM25 TSU:DAT Data Input
100 kHz mode
250
Setup Time
400 kHz mode
100
1 MHz mode⁽²⁾
100
—
nsec
—
nsec
—
nsec
IM26 THD:DAT Data Input
100 kHz mode
0
Hold Time
400 kHz mode
0
1 MHz mode⁽²⁾
0
—
μs
0.9
μs
0.3
μs
IM30 TSU:STA Start Condition 100 kHz mode TPB * (BRG + 2)
—
μs
Setup Time
400 kHz mode TPB * (BRG + 2)
—
μs
1 MHz mode⁽²⁾ TPB * (BRG + 2)
—
μs
IM31 THD:STA Start Condition 100 kHz mode TPB * (BRG + 2)
—
μs
Hold Time
400 kHz mode TPB * (BRG + 2)
—
μs
1 MHz mode⁽²⁾ TPB * (BRG + 2)
—
μs
IM33 TSU:STO Stop Condition 100 kHz mode TPB * (BRG + 2)
—
μs
Setup Time
400 kHz mode TPB * (BRG + 2)
—
μs
1 MHz mode⁽²⁾ TPB * (BRG + 2)
—
μs
IM34 THD:STO Stop Condition 100 kHz mode TPB * (BRG + 2)
—
nsec
Hold Time
400 kHz mode TPB * (BRG + 2)
—
nsec
1 MHz mode⁽²⁾ TPB * (BRG + 2)
—
nsec
IM40 TAA:SCL Output Valid
100 kHz mode
—
From Clock
400 kHz mode
—
1 MHz mode⁽²⁾
—
3500
1000
350
nsec
nsec
nsec
IM45 TBF:SDA Bus Free Time 100 kHz mode
4.7
—
μs
400 kHz mode
1.3
1 MHz mode⁽²⁾
0.5
—
μs
—
μs
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).
—
—
—
—
—
—
CB is specified to be
from 10 to 400 pF
CB is specified to be
from 10 to 400 pF
—
—
Only relevant for
Repeated Start
condition
After this period, the
first clock pulse is
generated
—
—
—
—
—
Time the bus must be
free before a new
transmission can start
DS61143E-page 618
Preliminary
© 2008 Microchip Technology Inc.