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2004 Microchip Technology Inc.
Advance Information
DS70119B-page 197
dsPIC30F6010
TABLE 24-33: I
2
C BUS DATA TIMING REQUIREMENTS (MASTER MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature
-40°C
≤
T
A
≤
+85°C for Industrial
-40
°
C
≤
T
A
≤
+125°C for Extended
Param
No.
Symbol
Characteristic
Min
(1)
Max
Units
Conditions
IM10
T
LO
:
SCL
Clock Low Time
100 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
—
400 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
—
1 MHz mode
(2)
T
CY
/ 2 (BRG + 1)
—
ms
—
IM11
T
HI
:
SCL
Clock High Time 100 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
—
400 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
—
1 MHz mode
(2)
T
CY
/ 2 (BRG + 1)
—
ms
—
IM20
T
F
:
SCL
SDA and SCL
Fall Time
100 kHz mode
—
300
ns
C
B
is specified to be
from 10 to 400 pF
400 kHz mode
20 + 0.1 C
B
300
ns
1 MHz mode
(2)
—
100
ns
IM21
T
R
:
SCL
SDA and SCL
Rise Time
100 kHz mode
—
1000
ns
C
B
is specified to be
from 10 to 400 pF
400 kHz mode
20 + 0.1 C
B
300 ns
1 MHz mode
(2)
—
300
ns
IM25
T
SU
:
DAT
Data Input
Setup Time
100 kHz mode
250
—
ns
—
400 kHz mode
100
—
ns
1 MHz mode
(2)
TBD —
ns
IM26
T
HD
:
DAT
Data Input
Hold Time
100 kHz mode
0
—
ns
—
400 kHz mode
0
0.9
ms
1 MHz mode
(2)
TBD —
ns
IM30
T
SU
:
STA
Start Condition
Setup Time
100 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
Only relevant for
repeated Start
condition
400 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
1 MHz mode
(2)
T
CY
/ 2 (BRG + 1)
—
ms
IM31
T
HD
:
STA
Start Condition
Hold Time
100 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
After this period the
first clock pulse is
generated
400 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
1 MHz mode
(2)
T
CY
/ 2 (BRG + 1)
—
ms
IM33
T
SU
:
STO
Stop Condition
Setup Time
100 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
—
400 kHz mode
T
CY
/ 2 (BRG + 1)
—
ms
1 MHz mode
(2)
T
CY
/ 2 (BRG + 1)
—
ms
IM34
T
HD
:
STO
Stop Condition
100 kHz mode
T
CY
/ 2 (BRG + 1)
—
ns
—
Hold Time
400 kHz mode
T
CY
/ 2 (BRG + 1)
—
ns
1 MHz mode
(2)
T
CY
/ 2 (BRG + 1)
—
ns
IM40
T
AA
:
SCL
Output Valid
From Clock
100 kHz mode
—
3500
ns
—
400 kHz mode
—
1000
ns
—
1 MHz mode
(2)
—
—
ns
—
IM45
T
BF
:
SDA
Bus Free Time
100 kHz mode
4.7
—
ms
Time the bus must be
free before a new
transmission can start
400 kHz mode
1.3
—
ms
1 MHz mode
(2)
TBD
—
ms
IM50
C
B
Bus Capacitive Loading
—
400
pF
Note 1:
BRG is the value of the I
2
C Baud Rate Generator. Refer to
Section 21 “Inter-Integrated Circuit™ (I
2
C)”
in the
dsPIC30F Family Reference Manual.
2:
Maximum pin capacitance = 10 pF for all I
2
C pins (for 1 MHz mode only).
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