DSPIC30F5015-30I Datasheet, PDF (208/234 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC30F5015/5016
TABLE 24-37: I²C™ BUS DATA TIMING REQUIREMENTS (MASTER 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⁽¹⁾
Max Units
Conditions
IM10 TLO:SCL Clock Low Time 100 kHz mode TCY/2 (BRG + 1) —
μs
—
400 kHz mode TCY/2 (BRG + 1) —
μs
—
1 MHz mode⁽²⁾ TCY/2 (BRG + 1)
—
μs
—
IM11 THI:SCL Clock High Time 100 kHz mode TCY/2 (BRG + 1) —
μs
—
400 kHz mode TCY/2 (BRG + 1) —
μs
—
1 MHz mode⁽²⁾ TCY/2 (BRG + 1)
—
μs
—
IM20
TF:SCL SDA and SCL
Fall Time
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
—
20 + 0.1 CB
—
300
ns CB is specified to be
300
ns ^{from 10 to 400 pF}
100
ns
IM21
TR:SCL SDA and SCL
Rise Time
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
—
20 + 0.1 CB
—
1000
300
300
ns CB is specified to be
ns ^{from 10 to 400 pF}
ns
IM25 TSU:DAT Data Input
100 kHz mode
250
—
ns
—
Setup Time
400 kHz mode
100
—
ns
1 MHz mode⁽²⁾
—
—
ns
IM26 THD:DAT Data Input
100 kHz mode
0
—
ns
—
Hold Time
400 kHz mode
0
0.9
μs
1 MHz mode⁽²⁾
—
—
ns
IM30 TSU:STA Start Condition 100 kHz mode TCY/2 (BRG + 1) —
Setup Time
400 kHz mode TCY/2 (BRG + 1) —
1 MHz mode⁽²⁾ TCY/2 (BRG + 1)
—
μs Only relevant for
μs ^{repeated Start}
μs ^condition
IM31 THD:STA Start Condition 100 kHz mode TCY/2 (BRG + 1) —
Hold Time
400 kHz mode TCY/2 (BRG + 1) —
1 MHz mode⁽²⁾ TCY/2 (BRG + 1)
—
μs After this period the
μs ^{first clock pulse is}
μs ^generated
IM33 TSU:STO Stop Condition 100 kHz mode TCY/2 (BRG + 1) —
μs
—
Setup Time
400 kHz mode TCY/2 (BRG + 1) —
μs
1 MHz mode⁽²⁾ TCY/2 (BRG + 1)
—
μs
IM34 THD:STO Stop Condition 100 kHz mode TCY/2 (BRG + 1) —
ns
—
Hold Time
400 kHz mode TCY/2 (BRG + 1) —
ns
1 MHz mode⁽²⁾ TCY/2 (BRG + 1)
—
ns
IM40 TAA:SCL Output Valid
100 kHz mode
—
3500
ns
—
From Clock
400 kHz mode
—
1000
ns
—
1 MHz mode⁽²⁾
—
—
ns
—
IM45 TBF:SDA Bus Free Time 100 kHz mode
4.7
400 kHz mode
1.3
1 MHz mode⁽²⁾
—
—
μs Time the bus must be
—
μs ^{free before a new}
—
μs ^{transmission can start}
IM50 CB
Bus Capacitive Loading
—
400
pF
Note 1: BRG is the value of the I²C Baud Rate Generator. Refer to Section 21. “Inter-Integrated Circuit (I²C™)”
(DS70046) in the “dsPIC30F Family Reference Manual”.
2: Maximum pin capacitance = 10 pF for all I²C pins (for 1 MHz mode only).
DS70149E-page 208
© 2011 Microchip Technology Inc.