參數(shù)資料
型號: TMX320C6412GNZ
廠商: Texas Instruments, Inc.
英文描述: Signal Processor
中文描述: 信號處理器
文件頁數(shù): 132/159頁
文件大?。?/td> 1989K
代理商: TMX320C6412GNZ
Inter-Integrated Circuits (I2C) Timing
132
April 2003 Revised June 2004
SPRS219D
Table 122. Switching Characteristics for I2C Timings
(see Figure 122)
500
600
NO.
PARAMETER
STANDARD
MODE
FAST
MODE
UNIT
MIN
MAX
MIN
2.5
MAX
16
tc(SCL)
td(SCLH-SDAL)
Cycle time, SCL
10
μ
s
μ
s
17
Delay time, SCL high to SDA low (for a repeated START condition)
4.7
0.6
18
td(SDAL-SCLL)
Delay time, SDA low to SCL low (for a START and a repeated
START condition)
4
0.6
μ
s
19
tw(SCLL)
tw(SCLH)
td(SDAV-SDLH)
tv(SDLL-SDAV)
tw(SDAH)
tr(SDA)
tr(SCL)
tf(SDA)
tf(SCL)
td(SCLH-SDAH)
Cp
Pulse duration, SCL low
4.7
1.3
μ
s
μ
s
ns
μ
s
μ
s
ns
20
Pulse duration, SCL high
4
0.6
21
Delay time, SDA valid to SCL high
Valid time, SDA valid after SCL low (For I2C bus
devices)
Pulse duration, SDA high between STOP and START conditions
250
100
22
0
0
0.9
23
4.7
1.3
24
Rise time, SDA
1000
20 + 0.1Cb
20 + 0.1Cb
20 + 0.1Cb
20 + 0.1Cb
300
25
Rise time, SCL
1000
300
ns
26
Fall time, SDA
300
300
ns
27
Fall time, SCL
300
300
ns
μ
s
pF
28
Delay time, SCL high to SDA high (for STOP condition)
4
0.6
29
Capacitance for each I2C pin
10
10
Cb = total capacitance of one bus line in pF. If mixed with HS-mode devices, faster fall-times are allowed.
25
23
19
18
22
27
20
21
17
18
28
Stop
Start
Repeated
Start
Stop
SDA
SCL
16
26
24
Figure 122. I2C Transmit Timings
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