dsPIC30F4011/4012
DS70135G-page 212
2010 Microchip Technology Inc.
TABLE 24-37: I2C BUS DATA TIMING REQUIREMENTS (SLAVE MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated)
Operating temperature
-40°C
≤TA ≤+85°C for Industrial
-40°C
≤TA ≤+125°C for Extended
Param
No.
Symbol
Characteristic
Min
Max
Units
Conditions
IS10
TLO:SCL
Clock Low Time
100 kHz mode
4.7
—
μs
Device must operate at a
minimum of 1.5 MHz
400 kHz mode
1.3
—
μs
Device must operate at a
minimum of 10 MHz.
1 MHz mode(1)
0.5
—
μs
IS11
THI:SCL
Clock High Time
100 kHz mode
4.0
—
μs
Device must operate at a
minimum of 1.5 MHz
400 kHz mode
0.6
—
μs
Device must operate at a
minimum of 10 MHz
1 MHz mode(1)
0.5
—
μs
IS20
TF: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 CB
300
ns
1 MHz mode(1)
—100
ns
IS21
TR:SCL
SDA and SCL
Rise Time
100 kHz mode
—
1000
ns
CB is specified to be from
10 to 400 pF
400 kHz mode
20 + 0.1 CB
300
ns
1 MHz mode(1)
—300
ns
IS25
TSU:DAT
Data Input
Setup Time
100 kHz mode
250
—
ns
400 kHz mode
100
—
ns
1 MHz mode(1)
100
—
ns
IS26
THD:DAT
Data Input
Hold Time
100 kHz mode
0
—
ns
400 kHz mode
0
0.9
μs
1 MHz mode(1)
00.3
μs
IS30
TSU:STA
Start Condition
Setup Time
100 kHz mode
4.7
—
μs
Only relevant for Repeated
Start condition
400 kHz mode
0.6
—
μs
1 MHz mode(1)
0.25
—
μs
IS31
THD:STA
Start Condition
Hold Time
100 kHz mode
4.0
—
μs
After this period, the first
clock pulse is generated
400 kHz mode
0.6
—
μs
1 MHz mode(1)
0.25
—
μs
IS33
TSU:STO
Stop Condition
Setup Time
100 kHz mode
4.7
—
μs
400 kHz mode
0.6
—
μs
1 MHz mode(1)
0.6
—
μs
IS34
THD:STO
Stop Condition
100 kHz mode
4000
—
ns
Hold Time
400 kHz mode
600
—
ns
1 MHz mode(1)
250
ns
IS40
TAA:SCL
Output Valid
From Clock
100 kHz mode
0
3500
ns
400 kHz mode
0
1000
ns
1 MHz mode(1)
0350
ns
IS45
TBF:SDA
Bus Free Time
100 kHz mode
4.7
—
μs
Time the bus must be free
before a new transmission
can start
400 kHz mode
1.3
—
μs
1 MHz mode(1)
0.5
—
μs
IS50
CB
Bus Capacitive Loading
—
400
pF
Note 1:
Maximum pin capacitance = 10 pF for all I2C pins (for 1 MHz mode only).