Datasheet

dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
DS70292G-page 374 © 2007-2012 Microchip Technology Inc.
TABLE 30-37: I2Cx BUS DATA TIMING REQUIREMENTS (SLAVE MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for Industrial
-40°C ≤T
A ≤+125°C for Extended
Param. Symbol Characteristic Min Max Units Conditions
IS10 T
LO: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 T
F:SCL SDAx and SCLx
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 T
R:SCL SDAx and SCLx
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 T
SU:DAT Data Input
Setup Time
100 kHz mode 250 — ns —
400 kHz mode 100 — ns
1 MHz mode
(1)
100 — ns
IS26 T
HD:DAT Data Input
Hold Time
100 kHz mode 0 — μs—
400 kHz mode 0 0.9 μs
1 MHz mode
(1)
00.3μs
IS30 T
SU: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 T
HD: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 T
SU: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 T
HD:ST
O
Stop Condition
Hold Time
100 kHz mode 4000 — ns —
400 kHz mode 600 — ns
1 MHz mode
(1)
250 ns
IS40 T
AA:SCL Output Valid
From Clock
100 kHz mode 0 3500 ns —
400 kHz mode 0 1000 ns
1 MHz mode
(1)
0 350 ns
IS45 T
BF: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 I2Cx pins (for 1 MHz mode only).