DSPIC30F3014 Datasheet, PDF (198/220 Pages) Microchip Technology – High-Performance Digital Signal Controllers

dsPIC30F3014/4013
TABLE 23-35: 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) —
400 kHz mode TCY / 2 (BRG + 1) —
1 MHz mode⁽²⁾ TCY / 2 (BRG + 1) —
IM11 THI:SCL Clock High Time 100 kHz mode TCY / 2 (BRG + 1) —
400 kHz mode TCY / 2 (BRG + 1) —
1 MHz mode⁽²⁾ TCY / 2 (BRG + 1) —
IM20 TF:SCL SDA and SCL 100 kHz mode
—
300
Fall Time
400 kHz mode
20 + 0.1 CB
300
1 MHz mode⁽²⁾
—
100
µs
—
µs
—
µs
—
µs
—
µs
—
µs
—
ns CB is specified to be
ns ^{from 10 to 400 pF}
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⁾
TBD
—
ns
IM26
IM30
IM31
IM33
IM34
IM40
THD:DAT Data Input
Hold Time
TSU:STA Start Condition
Setup Time
THD:STA Start Condition
Hold Time
TSU:STO Stop Condition
Setup Time
THD:STO Stop Condition
Hold Time
TAA:SCL Output Valid
From Clock
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
0
0
TBD
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
TCY / 2 (BRG + 1)
—
—
—
—
0.9
—
—
—
—
—
—
—
—
—
—
—
—
—
3500
1000
—
ns
—
µs
ns
µs Only relevant for
µs ^{repeated Start}
µs ^condition
µs After this period the
µs ^{first clock pulse is}
µs ^generated
µs
—
µs
µs
ns
—
ns
ns
ns
—
ns
—
ns
—
IM45
TBF:SDA Bus Free Time
100 kHz mode
400 kHz mode
1 MHz mode⁽²⁾
4.7
1.3
TBD
—
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)”
in the dsPIC30F Family Reference Manual.
2: Maximum pin capacitance = 10 pF for all I²C pins (for 1 MHz mode only).
DS70138C-page 196
Advance Information
 2004 Microchip Technology Inc.