Datasheet

 2008-2013 Microchip Technology Inc. DS22096B-page 13
MCP453X/455X/463X/465X
TABLE 1-1: I
2
C BUS START/STOP BITS REQUIREMENTS
FIGURE 1-2: I
2
C Bus Data Timing.
I
2
C AC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature –40C  T
A  +125C (Extended)
Operating Voltage V
DD range is described in AC/DC Characteristics
Param.
No.
Symbol Characteristic Min Max Units Conditions
F
SCL
Standard Mode 0 100 kHz C
b
= 400 pF, 1.8V - 5.5V
Fast Mode 0 400 kHz C
b
= 400 pF, 2.7V - 5.5V
High-Speed 1.7 0 1.7 MHz C
b
= 400 pF, 4.5V - 5.5V
High-Speed 3.4 0 3.4 MHz C
b
= 100 pF, 4.5V - 5.5V
D102 C
b
Bus capacitive
loading
100 kHz mode — 400 pF
400 kHz mode — 400 pF
1.7 MHz mode — 400 pF
3.4 MHz mode — 100 pF
90 T
SU:STA
START condition 100 kHz mode 4700 — ns Only relevant for repeated
START condition
Setup time 400 kHz mode 600 — ns
1.7 MHz mode 160 — ns
3.4 MHz mode 160 — ns
91 T
HD:STA
START condition 100 kHz mode 4000 — ns After this period the first
clock pulse is generated
Hold time 400 kHz mode 600 — ns
1.7 MHz mode 160 — ns
3.4 MHz mode 160 — ns
92 T
SU:STO
STOP condition 100 kHz mode 4000 — ns
Setup time 400 kHz mode 600 — ns
1.7 MHz mode 160 — ns
3.4 MHz mode 160 — ns
93 T
HD:STO
STOP condition 100 kHz mode 4000 — ns
Hold time 400 kHz mode 600 — ns
1.7 MHz mode 160 — ns
3.4 MHz mode 160 — ns
90
91 92
100
101
103
106
107
109
109
110
102
SCL
SDA
In
SDA
Out