Data Sheet

http：//www.DFRobot.com
第
5
页 共
10
页
8.2 AC Characteristics (VDD=+5.0V, VSS=0V, TTa=-20~70
°
)
Characteristic
Symbol
Test
Condition
Min
TYP
Max
Unit
SCL Cycle Time
f
SCLK
I
2
C
—
—
400
KHz
SCL Pulse Width
t
LOW
1.3
—
—
uS
SCL Rise/Fail Time
t
HIGH
0.6
—
—
uS
Address Setup Time
t
SU:DAT
100
—
—
nS
Address Hold Time
t
HD:DAT
0
—
0.9
uS
SCL/SDA Rise/Pulse Time
t
r
,t
f
20
—
300
nS
START Steup Time
t
SU:STA
0.6
—
—
uS
START Hold Time
t
HD:STA
0.6
—
—
uS
STOP Steup Time
t
SU:STO
0.6
—
—
uS
STOP、START Spacing
Interval
t
BUF
1.3
—
—
uS
MPU write timing
START STOP:
ASK :