MCP453X/455X/463X/465X
SCL
SDA
93
91
90
92
STOP
Condition
START
Condition
2
FIGURE 1-1:
I C Bus Start/Stop Bits Timing Waveforms.
2
TABLE 1-1:
I C BUS START/STOP BITS REQUIREMENTS
I2C AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature –40°C ≤ TA ≤ +125°C (Extended)
Operating Voltage VDD range is described in AC/DC characteristics
Param.
Symbol
No.
Characteristic
Standard Mode
Min
Max
Units
Conditions
FSCL
0
0
100
400
1.7
3.4
400
400
400
100
—
kHz Cb = 400 pF, 1.8V - 5.5V
Fast Mode
kHz Cb = 400 pF, 2.7V - 5.5V
High-Speed 1.7
High-Speed 3.4
100 kHz mode
400 kHz mode
1.7 MHz mode
3.4 MHz mode
100 kHz mode
400 kHz mode
1.7 MHz mode
3.4 MHz mode
100 kHz mode
400 kHz mode
1.7 MHz mode
3.4 MHz mode
100 kHz mode
400 kHz mode
1.7 MHz mode
3.4 MHz mode
100 kHz mode
400 kHz mode
1.7 MHz mode
3.4 MHz mode
0
MHz Cb = 400 pF, 4.5V - 5.5V
0
MHz Cb = 100 pF, 4.5V - 5.5V
D102
90
Cb
Bus capacitive
loading
—
pF
pF
pF
pF
—
—
—
TSU:STA START condition
Setup time
4700
600
160
160
4000
600
160
160
4000
600
160
160
4000
600
160
160
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Only relevant for repeated
START condition
—
—
—
91
THD:STA START condition
Hold time
—
After this period the first
clock pulse is generated
—
—
—
92
TSU:STO STOP condition
Setup time
—
—
—
—
93
THD:STO STOP condition
Hold time
—
—
—
—
© 2008 Microchip Technology Inc.
DS22096A-page 13
MICROCHIP [ MICROCHIP ]
