PRODUCTPREVIEW
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SWCS046C – MARCH 2010 – REVISED JUNE 2010
I
2C INTERFACE AND CONTROL SIGNALS
over operating free-air temperature range (unless otherwise noted)
NO.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
INT1 rise and fall times, CL = 5 to 35 pF
5
10
ns
NRESPWRON rise and fall times, CL = 5 to 35 pF
5
10
ns
SLAVE HIGH–SPEED MODE
SCL/SCLSR_EN1 and SDA/SDASR_EN2 rise and fall
10
80
ns
time, CL = 10 to 100 pF
Data rate
3.4
Mbps
I3
tsu(SDA-SCLH)
Setup time, SDA valid to SCL high
10
ns
I4
th(SCLL-SDA)
Hold time, SDA valid from SCL low
0
70
ns
I7
tsu(SCLH-SDAL)
Setup time, SCL high to SDA low
160
ns
I8
th(SDAL-SCLL)
Hold time, SCL low from SDA low
160
ns
I9
tsu(SDAH-SCLH)
Setup time, SDA high to SCL high
160
ns
SLAVE FAST MODE
SCL/SCLSR_EN1 and SDA/SDASR_EN2 rise and fall
20 +
250
ns
time, CL = 10 to 400 pF
0.1 × CL
Data rate
400
Kbps
I3
tsu(SDA-SCLH)
Setup time, SDA valid to SCL high
100
ns
I4
th(SCLL-SDA)
Hold time, SDA valid from SCL low
0
0.9
s
I7
tsu(SCLH-SDAL)
Setup time, SCL high to SDA low
0.6
s
I8
th(SDAL-SCLL)
Hold time, SCL low from SDA low
0.6
s
I9
tsu(SDAH-SCLH)
Setup time, SDA high to SCL high
0.6
s
SLAVE STANDARD MODE
SCL/SCLSR_EN1 and SDA/SDASR_EN2 rise and fall
250
ns
time, CL = 10 to 400 pF
Data rate
100
Kbps
I3
tsu(SDA-SCLH)
Setup time, SDA valid to SCL high
250
ns
I4
th(SCLL-SDA)
Hold time, SDA valid from SCL low
0
s
I7
tsu(SCLH-SDAL)
Setup time, SCL high to SDA low
4.7
s
I8
th(SDAL-SCLL)
Hold time, SCL low from SDA low
4
s
I9
tsu(SDAH-SCLH)
Setup time, SDA high to SCL high
4
s
SWITCHING CHARACTERISTICS
SLAVE HIGH–SPEED MODE
I1
tw(SCLL)
Pulse duration, SCL low
160
ns
I2
tw(SCLH)
Pulse duration, SCL high
60
ns
SLAVE FAST MODE
I1
tw(SCLL)
Pulse duration, SCL low
1.3
s
I2
tw(SCLH)
Pulse duration, SCL high
0.6
s
SLAVE STANDARD MODE
I1
tw(SCLL)
Pulse duration, SCL low
4.7
s
I2
tw(SCLH)
Pulse duration, SCL high
4
s
Copyright 2010, Texas Instruments Incorporated
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